diff --git a/LICENSE b/LICENSE
index a55e4395..b0403256 100644
--- a/LICENSE
+++ b/LICENSE
@@ -175,7 +175,7 @@
 
    END OF TERMS AND CONDITIONS
 
-   Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+   Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/dnn/atlas-stub/src/libacl_cblas-wrap.cpp b/dnn/atlas-stub/src/libacl_cblas-wrap.cpp
index 6831f136..85ff4651 100644
--- a/dnn/atlas-stub/src/libacl_cblas-wrap.cpp
+++ b/dnn/atlas-stub/src/libacl_cblas-wrap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/atlas-stub/src/libacl_cblas-wrap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/atlas-stub/src/libatlas-wrap.cpp b/dnn/atlas-stub/src/libatlas-wrap.cpp
index cb8edd56..9c2153f2 100644
--- a/dnn/atlas-stub/src/libatlas-wrap.cpp
+++ b/dnn/atlas-stub/src/libatlas-wrap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/atlas-stub/src/libatlas-wrap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/hcc_detail/hcc_defs_epilogue.h b/dnn/include/hcc_detail/hcc_defs_epilogue.h
index 3fbfe868..bb206360 100644
--- a/dnn/include/hcc_detail/hcc_defs_epilogue.h
+++ b/dnn/include/hcc_detail/hcc_defs_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/hcc_detail/hcc_defs_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/hcc_detail/hcc_defs_prologue.h b/dnn/include/hcc_detail/hcc_defs_prologue.h
index a5938115..e93eb410 100644
--- a/dnn/include/hcc_detail/hcc_defs_prologue.h
+++ b/dnn/include/hcc_detail/hcc_defs_prologue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/hcc_detail/hcc_defs_prologue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/hip_header.h b/dnn/include/hip_header.h
index a9ef6f15..d662f578 100644
--- a/dnn/include/hip_header.h
+++ b/dnn/include/hip_header.h
@@ -2,7 +2,7 @@
  * \file dnn/include/hip_header.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megcore.h b/dnn/include/megcore.h
index a8effea2..3af2da53 100644
--- a/dnn/include/megcore.h
+++ b/dnn/include/megcore.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megcore.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megcore_atlas.h b/dnn/include/megcore_atlas.h
index 9785cf30..308c6d74 100644
--- a/dnn/include/megcore_atlas.h
+++ b/dnn/include/megcore_atlas.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megcore_atlas.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megcore_cambricon.h b/dnn/include/megcore_cambricon.h
index a0103aa5..01031fb2 100644
--- a/dnn/include/megcore_cambricon.h
+++ b/dnn/include/megcore_cambricon.h
@@ -4,7 +4,7 @@
  * This file is part of MegDNN, a deep neural network run-time library
  * developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  */
 
 #pragma once
diff --git a/dnn/include/megcore_cdefs.h b/dnn/include/megcore_cdefs.h
index ac44ef30..7506d4b2 100644
--- a/dnn/include/megcore_cdefs.h
+++ b/dnn/include/megcore_cdefs.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megcore_cdefs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megcore_cuda.h b/dnn/include/megcore_cuda.h
index cf465df7..50f57d17 100644
--- a/dnn/include/megcore_cuda.h
+++ b/dnn/include/megcore_cuda.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megcore_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megcore_rocm.h b/dnn/include/megcore_rocm.h
index 60d52700..4cb5bea5 100644
--- a/dnn/include/megcore_rocm.h
+++ b/dnn/include/megcore_rocm.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megcore_rocm.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn.h b/dnn/include/megdnn.h
index e35dc520..2d60c166 100644
--- a/dnn/include/megdnn.h
+++ b/dnn/include/megdnn.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/arch.h b/dnn/include/megdnn/arch.h
index c83323b7..dea0dfd8 100644
--- a/dnn/include/megdnn/arch.h
+++ b/dnn/include/megdnn/arch.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/arch.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/basic_types.h b/dnn/include/megdnn/basic_types.h
index 1ba892a7..b942b22a 100644
--- a/dnn/include/megdnn/basic_types.h
+++ b/dnn/include/megdnn/basic_types.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/basic_types.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/config/config.h b/dnn/include/megdnn/config/config.h
index adb7abd0..619f786a 100644
--- a/dnn/include/megdnn/config/config.h
+++ b/dnn/include/megdnn/config/config.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/config/config.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/cuda.h b/dnn/include/megdnn/cuda.h
index afed2cfd..a8f6f198 100644
--- a/dnn/include/megdnn/cuda.h
+++ b/dnn/include/megdnn/cuda.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/dtype.h b/dnn/include/megdnn/dtype.h
index c3d022a1..4ec1bc53 100644
--- a/dnn/include/megdnn/dtype.h
+++ b/dnn/include/megdnn/dtype.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/dtype.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/dtype/bfloat16.hpp b/dnn/include/megdnn/dtype/bfloat16.hpp
index 8de1a1e7..5342290b 100644
--- a/dnn/include/megdnn/dtype/bfloat16.hpp
+++ b/dnn/include/megdnn/dtype/bfloat16.hpp
@@ -24,7 +24,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/dtype/half.hpp b/dnn/include/megdnn/dtype/half.hpp
index b602f64f..317b6c19 100644
--- a/dnn/include/megdnn/dtype/half.hpp
+++ b/dnn/include/megdnn/dtype/half.hpp
@@ -24,7 +24,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/dtype/half_common_epilogue.h b/dnn/include/megdnn/dtype/half_common_epilogue.h
index 34bae2d3..27f2e99f 100644
--- a/dnn/include/megdnn/dtype/half_common_epilogue.h
+++ b/dnn/include/megdnn/dtype/half_common_epilogue.h
@@ -24,7 +24,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/dtype/half_common_prologue.h b/dnn/include/megdnn/dtype/half_common_prologue.h
index d96f7857..72c949dc 100644
--- a/dnn/include/megdnn/dtype/half_common_prologue.h
+++ b/dnn/include/megdnn/dtype/half_common_prologue.h
@@ -24,7 +24,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/handle.h b/dnn/include/megdnn/handle.h
index f594f604..dc403110 100644
--- a/dnn/include/megdnn/handle.h
+++ b/dnn/include/megdnn/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/internal/defs.h b/dnn/include/megdnn/internal/defs.h
index 60bb8144..18960cb8 100644
--- a/dnn/include/megdnn/internal/defs.h
+++ b/dnn/include/megdnn/internal/defs.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/internal/defs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/internal/opr_header_epilogue.h b/dnn/include/megdnn/internal/opr_header_epilogue.h
index 75898ac3..7a491c6d 100644
--- a/dnn/include/megdnn/internal/opr_header_epilogue.h
+++ b/dnn/include/megdnn/internal/opr_header_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/internal/opr_header_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/internal/opr_header_prologue.h b/dnn/include/megdnn/internal/opr_header_prologue.h
index 9331c0bf..09f9d75b 100644
--- a/dnn/include/megdnn/internal/opr_header_prologue.h
+++ b/dnn/include/megdnn/internal/opr_header_prologue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/internal/opr_header_prologue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/internal/visibility_epilogue.h b/dnn/include/megdnn/internal/visibility_epilogue.h
index b40ce906..98c84bf5 100644
--- a/dnn/include/megdnn/internal/visibility_epilogue.h
+++ b/dnn/include/megdnn/internal/visibility_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/internal/visibility_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/internal/visibility_prologue.h b/dnn/include/megdnn/internal/visibility_prologue.h
index 5c13f00d..1d68705f 100644
--- a/dnn/include/megdnn/internal/visibility_prologue.h
+++ b/dnn/include/megdnn/internal/visibility_prologue.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/internal/visibility_prologue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/opr_result_defs.h b/dnn/include/megdnn/opr_result_defs.h
index 53e6e4ab..f9451d65 100644
--- a/dnn/include/megdnn/opr_result_defs.h
+++ b/dnn/include/megdnn/opr_result_defs.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/opr_result_defs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs.h b/dnn/include/megdnn/oprs.h
index 35342cac..0bdaeaa3 100644
--- a/dnn/include/megdnn/oprs.h
+++ b/dnn/include/megdnn/oprs.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/base.h b/dnn/include/megdnn/oprs/base.h
index 27bfc1b9..e2c10634 100644
--- a/dnn/include/megdnn/oprs/base.h
+++ b/dnn/include/megdnn/oprs/base.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/cv.h b/dnn/include/megdnn/oprs/cv.h
index 6d75f541..2ba5b767 100644
--- a/dnn/include/megdnn/oprs/cv.h
+++ b/dnn/include/megdnn/oprs/cv.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/general.h b/dnn/include/megdnn/oprs/general.h
index 490c8e9f..24745889 100644
--- a/dnn/include/megdnn/oprs/general.h
+++ b/dnn/include/megdnn/oprs/general.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/general.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/imgproc.h b/dnn/include/megdnn/oprs/imgproc.h
index 0a8aea55..71b61566 100644
--- a/dnn/include/megdnn/oprs/imgproc.h
+++ b/dnn/include/megdnn/oprs/imgproc.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/imgproc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/linalg.h b/dnn/include/megdnn/oprs/linalg.h
index 78672a75..135200a1 100644
--- a/dnn/include/megdnn/oprs/linalg.h
+++ b/dnn/include/megdnn/oprs/linalg.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/linalg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/nn.h b/dnn/include/megdnn/oprs/nn.h
index 12514f74..406c4ea5 100644
--- a/dnn/include/megdnn/oprs/nn.h
+++ b/dnn/include/megdnn/oprs/nn.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/nn.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/nn_int.h b/dnn/include/megdnn/oprs/nn_int.h
index 19fe69e1..44378394 100644
--- a/dnn/include/megdnn/oprs/nn_int.h
+++ b/dnn/include/megdnn/oprs/nn_int.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/nn_int.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/oprs/utils.h b/dnn/include/megdnn/oprs/utils.h
index de7e72e1..7583427d 100644
--- a/dnn/include/megdnn/oprs/utils.h
+++ b/dnn/include/megdnn/oprs/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/oprs/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/tensor_format.h b/dnn/include/megdnn/tensor_format.h
index 46347f3b..bc479be4 100644
--- a/dnn/include/megdnn/tensor_format.h
+++ b/dnn/include/megdnn/tensor_format.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/tensor_format.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/tensor_iter.h b/dnn/include/megdnn/tensor_iter.h
index e6d7cd2f..8857fc60 100644
--- a/dnn/include/megdnn/tensor_iter.h
+++ b/dnn/include/megdnn/tensor_iter.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/tensor_iter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/thin/function.h b/dnn/include/megdnn/thin/function.h
index 632fd27c..ab3849ea 100644
--- a/dnn/include/megdnn/thin/function.h
+++ b/dnn/include/megdnn/thin/function.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/thin/function.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/include/megdnn/thin/small_vector.h b/dnn/include/megdnn/thin/small_vector.h
index 338d2466..c482bd26 100644
--- a/dnn/include/megdnn/thin/small_vector.h
+++ b/dnn/include/megdnn/thin/small_vector.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/thin/small_vector.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
@@ -28,7 +28,7 @@
  *
  * \brief thin megdnn function
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  */
 #pragma once
 
diff --git a/dnn/include/megdnn/version.h b/dnn/include/megdnn/version.h
index bd800993..a9e36c32 100644
--- a/dnn/include/megdnn/version.h
+++ b/dnn/include/megdnn/version.h
@@ -2,7 +2,7 @@
  * \file dnn/include/megdnn/version.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp16/algos.cpp b/dnn/src/aarch64/conv_bias/fp16/algos.cpp
index 8aa0dab5..402a580d 100644
--- a/dnn/src/aarch64/conv_bias/fp16/algos.cpp
+++ b/dnn/src/aarch64/conv_bias/fp16/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp16/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp16/algos.h b/dnn/src/aarch64/conv_bias/fp16/algos.h
index c6ddc95b..2566ebc0 100644
--- a/dnn/src/aarch64/conv_bias/fp16/algos.h
+++ b/dnn/src/aarch64/conv_bias/fp16/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp16/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp16/stride2_kern.h b/dnn/src/aarch64/conv_bias/fp16/stride2_kern.h
index 92d64907..4f7ad3a1 100644
--- a/dnn/src/aarch64/conv_bias/fp16/stride2_kern.h
+++ b/dnn/src/aarch64/conv_bias/fp16/stride2_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp16/stride2_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp32/algos.cpp b/dnn/src/aarch64/conv_bias/fp32/algos.cpp
index 3742032d..9517b9d7 100644
--- a/dnn/src/aarch64/conv_bias/fp32/algos.cpp
+++ b/dnn/src/aarch64/conv_bias/fp32/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp32/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp32/algos.h b/dnn/src/aarch64/conv_bias/fp32/algos.h
index 53a33968..ba1fe98b 100644
--- a/dnn/src/aarch64/conv_bias/fp32/algos.h
+++ b/dnn/src/aarch64/conv_bias/fp32/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp32/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/fp32/stride2_kern.h b/dnn/src/aarch64/conv_bias/fp32/stride2_kern.h
index a02ddfd8..3db3c197 100644
--- a/dnn/src/aarch64/conv_bias/fp32/stride2_kern.h
+++ b/dnn/src/aarch64/conv_bias/fp32/stride2_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/fp32/stride2_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/int8/algos.cpp b/dnn/src/aarch64/conv_bias/int8/algos.cpp
index 802793d7..c7124f94 100644
--- a/dnn/src/aarch64/conv_bias/int8/algos.cpp
+++ b/dnn/src/aarch64/conv_bias/int8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/int8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/int8/algos.h b/dnn/src/aarch64/conv_bias/int8/algos.h
index 4a5bf6b1..cc19d185 100644
--- a/dnn/src/aarch64/conv_bias/int8/algos.h
+++ b/dnn/src/aarch64/conv_bias/int8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/int8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/int8/strategy.cpp b/dnn/src/aarch64/conv_bias/int8/strategy.cpp
index cc8a6761..03ff9119 100644
--- a/dnn/src/aarch64/conv_bias/int8/strategy.cpp
+++ b/dnn/src/aarch64/conv_bias/int8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/int8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/int8/strategy.h b/dnn/src/aarch64/conv_bias/int8/strategy.h
index 092e9301..e419749b 100644
--- a/dnn/src/aarch64/conv_bias/int8/strategy.h
+++ b/dnn/src/aarch64/conv_bias/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/opr_impl.cpp b/dnn/src/aarch64/conv_bias/opr_impl.cpp
index 9bca6877..53da143f 100644
--- a/dnn/src/aarch64/conv_bias/opr_impl.cpp
+++ b/dnn/src/aarch64/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/opr_impl.h b/dnn/src/aarch64/conv_bias/opr_impl.h
index f1867cf9..f47c9f62 100644
--- a/dnn/src/aarch64/conv_bias/opr_impl.h
+++ b/dnn/src/aarch64/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/quint8/algos.cpp b/dnn/src/aarch64/conv_bias/quint8/algos.cpp
index a34d840d..5dbaea87 100644
--- a/dnn/src/aarch64/conv_bias/quint8/algos.cpp
+++ b/dnn/src/aarch64/conv_bias/quint8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/quint8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/quint8/algos.h b/dnn/src/aarch64/conv_bias/quint8/algos.h
index ba3ab203..7cc9a971 100644
--- a/dnn/src/aarch64/conv_bias/quint8/algos.h
+++ b/dnn/src/aarch64/conv_bias/quint8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/quint8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/quint8/strategy.cpp b/dnn/src/aarch64/conv_bias/quint8/strategy.cpp
index 02fbff23..b1fa5f49 100644
--- a/dnn/src/aarch64/conv_bias/quint8/strategy.cpp
+++ b/dnn/src/aarch64/conv_bias/quint8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/quint8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/conv_bias/quint8/strategy.h b/dnn/src/aarch64/conv_bias/quint8/strategy.h
index 43c53020..fe109f1b 100644
--- a/dnn/src/aarch64/conv_bias/quint8/strategy.h
+++ b/dnn/src/aarch64/conv_bias/quint8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/conv_bias/quint8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/handle.cpp b/dnn/src/aarch64/handle.cpp
index 9d894b9b..b84e3001 100644
--- a/dnn/src/aarch64/handle.cpp
+++ b/dnn/src/aarch64/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/handle.h b/dnn/src/aarch64/handle.h
index 70b5fea9..9e97a108 100644
--- a/dnn/src/aarch64/handle.h
+++ b/dnn/src/aarch64/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/algos.cpp b/dnn/src/aarch64/matrix_mul/algos.cpp
index 0df00232..dd712195 100644
--- a/dnn/src/aarch64/matrix_mul/algos.cpp
+++ b/dnn/src/aarch64/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/algos.h b/dnn/src/aarch64/matrix_mul/algos.h
index fcb7188f..12e42f45 100644
--- a/dnn/src/aarch64/matrix_mul/algos.h
+++ b/dnn/src/aarch64/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/asm/common.h b/dnn/src/aarch64/matrix_mul/asm/common.h
index 5c4ed664..98e829a8 100644
--- a/dnn/src/aarch64/matrix_mul/asm/common.h
+++ b/dnn/src/aarch64/matrix_mul/asm/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/asm/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp16/strategy.cpp b/dnn/src/aarch64/matrix_mul/fp16/strategy.cpp
index 76be2eda..bdb02eb3 100644
--- a/dnn/src/aarch64/matrix_mul/fp16/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/fp16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp16/strategy.h b/dnn/src/aarch64/matrix_mul/fp16/strategy.h
index f3358b69..f2ff6688 100644
--- a/dnn/src/aarch64/matrix_mul/fp16/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/fp16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp16/strategy_mk8_8x8.cpp b/dnn/src/aarch64/matrix_mul/fp16/strategy_mk8_8x8.cpp
index 9de2d3e9..38bc1695 100644
--- a/dnn/src/aarch64/matrix_mul/fp16/strategy_mk8_8x8.cpp
+++ b/dnn/src/aarch64/matrix_mul/fp16/strategy_mk8_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp16/strategy_mk8_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/common.h b/dnn/src/aarch64/matrix_mul/fp32/common.h
index 50120684..9892a490 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/common.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_4x16.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_4x16.h
index 6ed46ee4..0b7cc77d 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_4x16.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_4x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_general_4x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12.h
index d317e88f..9f76c80a 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a53.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a53.h
index 46632f57..880c997f 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a53.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a53.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h
index c205a48d..21837d73 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_general_8x12_a55.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12.h
index 2a230562..4360d502 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a53.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a53.h
index 50263bd4..5f438c57 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a53.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a53.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a53.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a55.h b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a55.h
index 23bed950..a6de35f0 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a55.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a55.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/kernel_mk4_8x12_a55.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/strategy.cpp b/dnn/src/aarch64/matrix_mul/fp32/strategy.cpp
index 7e34ac45..7f218358 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/fp32/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/strategy.h b/dnn/src/aarch64/matrix_mul/fp32/strategy.h
index b1cfe2d8..3b7980b8 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/fp32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/fp32/strategy_mk4_4x16.cpp b/dnn/src/aarch64/matrix_mul/fp32/strategy_mk4_4x16.cpp
index fa88550e..253178b5 100644
--- a/dnn/src/aarch64/matrix_mul/fp32/strategy_mk4_4x16.cpp
+++ b/dnn/src/aarch64/matrix_mul/fp32/strategy_mk4_4x16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/fp32/strategy_mk4_4x16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int16/kernel_12x8x1.h b/dnn/src/aarch64/matrix_mul/int16/kernel_12x8x1.h
index cc5d04c1..3c4d9605 100644
--- a/dnn/src/aarch64/matrix_mul/int16/kernel_12x8x1.h
+++ b/dnn/src/aarch64/matrix_mul/int16/kernel_12x8x1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int16/kernel_12x8x1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int16/strategy.cpp b/dnn/src/aarch64/matrix_mul/int16/strategy.cpp
index 2b798cf0..29c150cf 100644
--- a/dnn/src/aarch64/matrix_mul/int16/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/int16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int16/strategy.h b/dnn/src/aarch64/matrix_mul/int16/strategy.h
index c67c25b8..22f5476a 100644
--- a/dnn/src/aarch64/matrix_mul/int16/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/int16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int16/strategy_mk8_8x8.cpp b/dnn/src/aarch64/matrix_mul/int16/strategy_mk8_8x8.cpp
index e358d411..644e1231 100644
--- a/dnn/src/aarch64/matrix_mul/int16/strategy_mk8_8x8.cpp
+++ b/dnn/src/aarch64/matrix_mul/int16/strategy_mk8_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int16/strategy_mk8_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int4x4x16/kernel_int4_8x8x8.h b/dnn/src/aarch64/matrix_mul/int4x4x16/kernel_int4_8x8x8.h
index 35ea47ef..1a5f5119 100644
--- a/dnn/src/aarch64/matrix_mul/int4x4x16/kernel_int4_8x8x8.h
+++ b/dnn/src/aarch64/matrix_mul/int4x4x16/kernel_int4_8x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int4x4x16/kernel_8x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.cpp b/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.cpp
index 3b91f61d..4c06d5ed 100644
--- a/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int4x4x16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.h b/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.h
index 52762c24..a23acbec 100644
--- a/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/int4x4x16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int4x4x16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8/kernel_4x4x16.h b/dnn/src/aarch64/matrix_mul/int8/kernel_4x4x16.h
index 0503cebc..90816b55 100644
--- a/dnn/src/aarch64/matrix_mul/int8/kernel_4x4x16.h
+++ b/dnn/src/aarch64/matrix_mul/int8/kernel_4x4x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8/kernel_4x4x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8/kernel_8x8x8.h b/dnn/src/aarch64/matrix_mul/int8/kernel_8x8x8.h
index ebad760f..6dfbbb31 100644
--- a/dnn/src/aarch64/matrix_mul/int8/kernel_8x8x8.h
+++ b/dnn/src/aarch64/matrix_mul/int8/kernel_8x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8/kernel_8x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8/kernel_mk4_4x4x16.h b/dnn/src/aarch64/matrix_mul/int8/kernel_mk4_4x4x16.h
index 497c0b9e..c4dbadf1 100644
--- a/dnn/src/aarch64/matrix_mul/int8/kernel_mk4_4x4x16.h
+++ b/dnn/src/aarch64/matrix_mul/int8/kernel_mk4_4x4x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8/kernel_mk4_4x4x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8/strategy.cpp b/dnn/src/aarch64/matrix_mul/int8/strategy.cpp
index 882e8da0..41eb3b17 100644
--- a/dnn/src/aarch64/matrix_mul/int8/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/int8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8/strategy.h b/dnn/src/aarch64/matrix_mul/int8/strategy.h
index 933b67e1..b2909737 100644
--- a/dnn/src/aarch64/matrix_mul/int8/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8_dot/kernel_8x12x4.h b/dnn/src/aarch64/matrix_mul/int8_dot/kernel_8x12x4.h
index 1f08d31b..d59e3a60 100644
--- a/dnn/src/aarch64/matrix_mul/int8_dot/kernel_8x12x4.h
+++ b/dnn/src/aarch64/matrix_mul/int8_dot/kernel_8x12x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8_dot/kernel_8x12x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8_dot/kernel_mk4_8x12x4.h b/dnn/src/aarch64/matrix_mul/int8_dot/kernel_mk4_8x12x4.h
index a24e0220..369c5e2e 100644
--- a/dnn/src/aarch64/matrix_mul/int8_dot/kernel_mk4_8x12x4.h
+++ b/dnn/src/aarch64/matrix_mul/int8_dot/kernel_mk4_8x12x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8_dot/kernel_mk4_8x12x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8_dot/strategy.cpp b/dnn/src/aarch64/matrix_mul/int8_dot/strategy.cpp
index bf4a2f3a..ce72b693 100644
--- a/dnn/src/aarch64/matrix_mul/int8_dot/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/int8_dot/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8_dot/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8_dot/strategy.h b/dnn/src/aarch64/matrix_mul/int8_dot/strategy.h
index f91a37e9..48382035 100644
--- a/dnn/src/aarch64/matrix_mul/int8_dot/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/int8_dot/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8_dot/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_4x4x16.h b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_4x4x16.h
index de93bf8b..90f70c75 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_4x4x16.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_4x4x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/kernel_4x4x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_8x8x8.h b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_8x8x8.h
index ae446944..b5bd58ab 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_8x8x8.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_8x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/kernel_8x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_16x12x4_a53.h b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_16x12x4_a53.h
index 6059c646..99c79a79 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_16x12x4_a53.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_16x12x4_a53.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_4x4x8_a72.h b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_4x4x8_a72.h
index 417e5155..00a142ab 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_4x4x8_a72.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_4x4x8_a72.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_4x4x8_a72.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_8x8x8.h b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_8x8x8.h
index 80db73b7..184f4d96 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_8x8x8.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_8x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/kernel_mk4_8x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.cpp b/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.cpp
index cd2f2e13..08ae289f 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.h b/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.h
index 0b320712..a303a26f 100644
--- a/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/int8x8x16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/int8x8x16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/opr_impl.cpp b/dnn/src/aarch64/matrix_mul/opr_impl.cpp
index c673c855..54ddd8ec 100644
--- a/dnn/src/aarch64/matrix_mul/opr_impl.cpp
+++ b/dnn/src/aarch64/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/opr_impl.h b/dnn/src/aarch64/matrix_mul/opr_impl.h
index fce50f98..b9738a3b 100644
--- a/dnn/src/aarch64/matrix_mul/opr_impl.h
+++ b/dnn/src/aarch64/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8/kernel_8x8x8.h b/dnn/src/aarch64/matrix_mul/quint8/kernel_8x8x8.h
index 9ddc7d07..d11df457 100644
--- a/dnn/src/aarch64/matrix_mul/quint8/kernel_8x8x8.h
+++ b/dnn/src/aarch64/matrix_mul/quint8/kernel_8x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8/kernel_8x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8/strategy.cpp b/dnn/src/aarch64/matrix_mul/quint8/strategy.cpp
index 96079e6d..e560b773 100644
--- a/dnn/src/aarch64/matrix_mul/quint8/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/quint8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8/strategy.h b/dnn/src/aarch64/matrix_mul/quint8/strategy.h
index e76830dd..93214ef4 100644
--- a/dnn/src/aarch64/matrix_mul/quint8/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/quint8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.cpp b/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.cpp
index 0497f9fb..b3523572 100644
--- a/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.cpp
+++ b/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8_dot/gemv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.h b/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.h
index e7d8e85b..ba633ffa 100644
--- a/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.h
+++ b/dnn/src/aarch64/matrix_mul/quint8_dot/gemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8_dot/gemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8_dot/kernel_8x8x4.h b/dnn/src/aarch64/matrix_mul/quint8_dot/kernel_8x8x4.h
index 3cb1c1b8..928b8d1f 100644
--- a/dnn/src/aarch64/matrix_mul/quint8_dot/kernel_8x8x4.h
+++ b/dnn/src/aarch64/matrix_mul/quint8_dot/kernel_8x8x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8_dot/kernel_8x8x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.cpp b/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.cpp
index 305996b3..33e44c32 100644
--- a/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.cpp
+++ b/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8_dot/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.h b/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.h
index c84eee07..5d32405e 100644
--- a/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.h
+++ b/dnn/src/aarch64/matrix_mul/quint8_dot/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/matrix_mul/quint8_dot/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/relayout/opr_impl.cpp b/dnn/src/aarch64/relayout/opr_impl.cpp
index df34c812..8e7f8524 100644
--- a/dnn/src/aarch64/relayout/opr_impl.cpp
+++ b/dnn/src/aarch64/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/relayout/opr_impl.h b/dnn/src/aarch64/relayout/opr_impl.h
index 96195cee..61035b27 100644
--- a/dnn/src/aarch64/relayout/opr_impl.h
+++ b/dnn/src/aarch64/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/rotate/opr_impl.cpp b/dnn/src/aarch64/rotate/opr_impl.cpp
index f8a0cd51..1ad25d88 100644
--- a/dnn/src/aarch64/rotate/opr_impl.cpp
+++ b/dnn/src/aarch64/rotate/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/rotate/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/rotate/opr_impl.h b/dnn/src/aarch64/rotate/opr_impl.h
index 099c0035..eba709fc 100644
--- a/dnn/src/aarch64/rotate/opr_impl.h
+++ b/dnn/src/aarch64/rotate/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/rotate/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/warp_perspective/opr_impl.cpp b/dnn/src/aarch64/warp_perspective/opr_impl.cpp
index 9b9e6a79..defa9d05 100644
--- a/dnn/src/aarch64/warp_perspective/opr_impl.cpp
+++ b/dnn/src/aarch64/warp_perspective/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/warp_perspective/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/warp_perspective/opr_impl.h b/dnn/src/aarch64/warp_perspective/opr_impl.h
index c5fd11ce..23227613 100644
--- a/dnn/src/aarch64/warp_perspective/opr_impl.h
+++ b/dnn/src/aarch64/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/warp_perspective/warp_perspective_cv.cpp b/dnn/src/aarch64/warp_perspective/warp_perspective_cv.cpp
index 60c57873..3b7b1cda 100644
--- a/dnn/src/aarch64/warp_perspective/warp_perspective_cv.cpp
+++ b/dnn/src/aarch64/warp_perspective/warp_perspective_cv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/warp_perspective/warp_perspective_cv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/aarch64/warp_perspective/warp_perspective_cv.h b/dnn/src/aarch64/warp_perspective/warp_perspective_cv.h
index cf181fc3..39071b6b 100644
--- a/dnn/src/aarch64/warp_perspective/warp_perspective_cv.h
+++ b/dnn/src/aarch64/warp_perspective/warp_perspective_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/aarch64/warp_perspective/warp_perspective_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/block_helper.h b/dnn/src/arm_common/conv_bias/block_helper.h
index 7ff14817..9eea2a2d 100644
--- a/dnn/src/arm_common/conv_bias/block_helper.h
+++ b/dnn/src/arm_common/conv_bias/block_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/block_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/direct/multi_thread_common.cpp b/dnn/src/arm_common/conv_bias/direct/multi_thread_common.cpp
index 7304e4d4..e68a6cb4 100644
--- a/dnn/src/arm_common/conv_bias/direct/multi_thread_common.cpp
+++ b/dnn/src/arm_common/conv_bias/direct/multi_thread_common.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/direct/multi_thread_common.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/direct/multi_thread_common.h b/dnn/src/arm_common/conv_bias/direct/multi_thread_common.h
index 81480972..921ed6ef 100644
--- a/dnn/src/arm_common/conv_bias/direct/multi_thread_common.h
+++ b/dnn/src/arm_common/conv_bias/direct/multi_thread_common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/direct/multi_thread_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/algos.cpp b/dnn/src/arm_common/conv_bias/f16/algos.cpp
index fd256fd9..9302b29b 100644
--- a/dnn/src/arm_common/conv_bias/f16/algos.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/algos.h b/dnn/src/arm_common/conv_bias/f16/algos.h
index 47c0ead5..02f957fe 100644
--- a/dnn/src/arm_common/conv_bias/f16/algos.h
+++ b/dnn/src/arm_common/conv_bias/f16/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/direct.cpp b/dnn/src/arm_common/conv_bias/f16/direct.cpp
index b291e04c..feaacd20 100644
--- a/dnn/src/arm_common/conv_bias/f16/direct.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/direct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/direct.h b/dnn/src/arm_common/conv_bias/f16/direct.h
index 7a556eec..7949d310 100644
--- a/dnn/src/arm_common/conv_bias/f16/direct.h
+++ b/dnn/src/arm_common/conv_bias/f16/direct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/direct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.cpp b/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.cpp
index 4ddbebf7..2768ba9c 100644
--- a/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/do_conv_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.h b/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.h
index 95159691..ede394ee 100644
--- a/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.h
+++ b/dnn/src/arm_common/conv_bias/f16/do_conv_stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/do_conv_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/helper.h b/dnn/src/arm_common/conv_bias/f16/helper.h
index 8e88e3e2..6d4f253e 100644
--- a/dnn/src/arm_common/conv_bias/f16/helper.h
+++ b/dnn/src/arm_common/conv_bias/f16/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/strategy.h b/dnn/src/arm_common/conv_bias/f16/strategy.h
index 3e47097f..4a9fd473 100644
--- a/dnn/src/arm_common/conv_bias/f16/strategy.h
+++ b/dnn/src/arm_common/conv_bias/f16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/strategy_2x3.cpp b/dnn/src/arm_common/conv_bias/f16/strategy_2x3.cpp
index a084ba45..8ec31629 100644
--- a/dnn/src/arm_common/conv_bias/f16/strategy_2x3.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/strategy_2x3.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/strategy_2x3.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/strategy_2x3_8x8.cpp b/dnn/src/arm_common/conv_bias/f16/strategy_2x3_8x8.cpp
index 23adba86..a4855b42 100644
--- a/dnn/src/arm_common/conv_bias/f16/strategy_2x3_8x8.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/strategy_2x3_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/strategy_2x3_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/strategy_4x5.cpp b/dnn/src/arm_common/conv_bias/f16/strategy_4x5.cpp
index d36d2184..01cecbdd 100644
--- a/dnn/src/arm_common/conv_bias/f16/strategy_4x5.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/strategy_4x5.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/strategy_4x5.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/f16/strategy_6x3.cpp b/dnn/src/arm_common/conv_bias/f16/strategy_6x3.cpp
index adbb9b7e..68362eea 100644
--- a/dnn/src/arm_common/conv_bias/f16/strategy_6x3.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/strategy_6x3.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/f16/strategy_6x3.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/algos.cpp b/dnn/src/arm_common/conv_bias/fp32/algos.cpp
index bdca4781..5edcb53f 100644
--- a/dnn/src/arm_common/conv_bias/fp32/algos.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/algos.h b/dnn/src/arm_common/conv_bias/fp32/algos.h
index 15fad6ed..e5998f89 100644
--- a/dnn/src/arm_common/conv_bias/fp32/algos.h
+++ b/dnn/src/arm_common/conv_bias/fp32/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_algo.cpp
index 5e0784cc..13235461 100644
--- a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.cpp b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.cpp
index 2fda4694..6e53ac1c 100644
--- a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.h b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.h
index 13f06f31..01a581a8 100644
--- a/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/channel_wise_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct.cpp b/dnn/src/arm_common/conv_bias/fp32/direct.cpp
index b55d21f8..374c31f9 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct.h b/dnn/src/arm_common/conv_bias/fp32/direct.h
index 861cd0fe..fe95b647 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct.h
+++ b/dnn/src/arm_common/conv_bias/fp32/direct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/direct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern.cpp
index fcf8801e..08f5e4bd 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s1.cpp
index dba54fd5..30874d33 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s2.cpp
index 58430539..355c9ed6 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_2x2s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s1.cpp
index f3d4fdfe..6d99b01b 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s2.cpp
index 76d3bae8..6075a8ca 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_3x3s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s1.cpp
index 3f703967..689df883 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s2.cpp
index bfe92661..be37fc1c 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_5x5s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s1.cpp
index f77cdeab..db2be268 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s2.cpp
index 975e4389..a7571939 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_7x7s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s1.h b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s1.h
index 3bba1637..0ddce83a 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s1.h
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s1.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s2.h b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s2.h
index f7057e3b..fd7b47ad 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s2.h
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s2.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw44_kern_common_s2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s1.cpp
index 0e4b75dd..291741b9 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s2.cpp
index 231fb564..d3f360c5 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_2x2s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s1.cpp
index 7d9a6291..432708e7 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s2.cpp
index e7d2e841..38ffe8ef 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_3x3s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s1.cpp
index 21e5a14c..2bd616d6 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s2.cpp
index 82a45e18..8433d0de 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_5x5s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s1.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s1.cpp
index 09e1bc48..deb839a8 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s2.cpp b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s2.cpp
index ad8205f6..c0a18167 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_7x7s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_common.h b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_common.h
index 321fe2a5..9f0c1c66 100644
--- a/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_common.h
+++ b/dnn/src/arm_common/conv_bias/fp32/direct_kernels/f32_direct_nchw_nchw44_kern_common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.cpp b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.cpp
index 68b698c4..57347971 100644
--- a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.h b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.h
index f7990399..66de74fa 100644
--- a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.h
+++ b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/do_conv_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.cpp b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.cpp
index e6c92653..5682a658 100644
--- a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.h b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.h
index e676c652..acd53821 100644
--- a/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.h
+++ b/dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/do_conv_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_algo.cpp
index 8ace555f..3dc28844 100644
--- a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_kern.h b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_kern.h
index 2d5c7d9e..50e77262 100644
--- a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/f32_direct_stride1_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_algo.cpp
index b505aedf..53eba711 100644
--- a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_algo.cpp
@@ -3,7 +3,7 @@
  dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h
index 1617eedd..1c69bbad 100644
--- a/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/f32_direct_nchw_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/filter_transform.h b/dnn/src/arm_common/conv_bias/fp32/filter_transform.h
index 9ca264ca..cce7a55e 100644
--- a/dnn/src/arm_common/conv_bias/fp32/filter_transform.h
+++ b/dnn/src/arm_common/conv_bias/fp32/filter_transform.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/filter_transform.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/helper.h b/dnn/src/arm_common/conv_bias/fp32/helper.h
index 40df3c4a..6d13a44c 100644
--- a/dnn/src/arm_common/conv_bias/fp32/helper.h
+++ b/dnn/src/arm_common/conv_bias/fp32/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy.h b/dnn/src/arm_common/conv_bias/fp32/strategy.h
index 4b7fc9c5..5a92f2de 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy.h
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_2x3_4x4.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_2x3_4x4.cpp
index 5d55628e..3e0fb6f1 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_2x3_4x4.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_2x3_4x4.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_2x3_4x4.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_4x5.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_4x5.cpp
index bf634c3c..8c977c36 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_4x5.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_4x5.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_4x5.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_5x4.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_5x4.cpp
index 54d35771..b502602e 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_5x4.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_5x4.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_5x4.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_6x3.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_6x3.cpp
index 7cde4a7c..15489b35 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_6x3.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_6x3.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_6x3.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_6x3_4x4.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_6x3_4x4.cpp
index ca42913e..6d1011c6 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_6x3_4x4.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_6x3_4x4.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_6x3_4x4.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_f23_mk4_nchw44.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_f23_mk4_nchw44.cpp
index 89350047..2e8deab8 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_f23_mk4_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_f23_mk4_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_f23_mk4_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_f63_mk4_nchw44.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_f63_mk4_nchw44.cpp
index a435d727..444cbc9d 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_f63_mk4_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_f63_mk4_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_f63_mk4_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/fp32/strategy_f73_mk4_nchw44.cpp b/dnn/src/arm_common/conv_bias/fp32/strategy_f73_mk4_nchw44.cpp
index a988a3be..b106a810 100644
--- a/dnn/src/arm_common/conv_bias/fp32/strategy_f73_mk4_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/fp32/strategy_f73_mk4_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_f73_mk4_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/img2col_helper.h b/dnn/src/arm_common/conv_bias/img2col_helper.h
index 84850fd2..2af4ac7c 100644
--- a/dnn/src/arm_common/conv_bias/img2col_helper.h
+++ b/dnn/src/arm_common/conv_bias/img2col_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/img2col_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/algos.cpp b/dnn/src/arm_common/conv_bias/int8/algos.cpp
index e8654f52..fe1116cd 100644
--- a/dnn/src/arm_common/conv_bias/int8/algos.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/algos.h b/dnn/src/arm_common/conv_bias/int8/algos.h
index e509e43d..9b42190e 100644
--- a/dnn/src/arm_common/conv_bias/int8/algos.h
+++ b/dnn/src/arm_common/conv_bias/int8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.cpp b/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.cpp
index 3a8a671b..fb533e63 100644
--- a/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.h b/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.h
index d47024cf..9c91e82e 100644
--- a/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.h
+++ b/dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/channel_wise_kernel.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.cpp b/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.cpp
index c0790f10..a3720fc7 100644
--- a/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.h b/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.h
index d869a6d1..a3610dc3 100644
--- a/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.h
+++ b/dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/channel_wise_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct.cpp b/dnn/src/arm_common/conv_bias/int8/direct.cpp
index debb4ab4..cee5429b 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct.h b/dnn/src/arm_common/conv_bias/int8/direct.h
index 1a58ab66..1795b1d8 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_dotprod.cpp b/dnn/src/arm_common/conv_bias/int8/direct_dotprod.cpp
index 49106c53..3ecb74fd 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_dotprod.h b/dnn/src/arm_common/conv_bias/int8/direct_dotprod.h
index f5752809..60d47b14 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.cpp b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.cpp
index fbe0e6c6..54ffff58 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.h b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.h
index f5ffac31..e5ebb849 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44_algo.cpp
index e18ca781..609177e7 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_dotprod_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_dotpord_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_common.h b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_common.h
index 6e4e1029..9c6babbe 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_common.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_common.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s1.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s1.cpp
index 737ef33b..20e67dcc 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s2.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s2.cpp
index 4f5b8ebf..a7683fe9 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw44_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s1.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s1.cpp
index 81f53770..57377ae9 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s2.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s2.cpp
index 2ea726a1..069f3c43 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_nchw44_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s1.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s1.cpp
index 8b82b932..c1b112cf 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s2.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s2.cpp
index b6959dc0..2b4ab1ec 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw44_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_common.h b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_common.h
index 5e81bd7e..2eaf00ef 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_common.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_common.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp
index 0dacdf83..96ca7e43 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s2.cpp b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s2.cpp
index c008aa29..ea127372 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/direct_kernels/int8_direct_nchw_nchw44_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8/direct_nchw44_algo.cpp
index 2477d20e..dcef72d4 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_nchw44_kern.h b/dnn/src/arm_common/conv_bias/int8/direct_nchw44_kern.h
index 9bf1f50d..71bd9c0a 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_algo.cpp
index 399edba7..a0f44b56 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_kern.h b/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_kern.h
index 90126638..3e46b807 100644
--- a/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/direct_nchw_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_algo.cpp
index b159f484..2c8480ae 100644
--- a/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_algo.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_kern.h b/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_kern.h
index 3529d907..6aba98d9 100644
--- a/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_kern.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8/dot_direct_nchw_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/helper.h b/dnn/src/arm_common/conv_bias/int8/helper.h
index 965b36d1..749fd6aa 100644
--- a/dnn/src/arm_common/conv_bias/int8/helper.h
+++ b/dnn/src/arm_common/conv_bias/int8/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/strategy.h b/dnn/src/arm_common/conv_bias/int8/strategy.h
index f4bc4a33..dbab2f4b 100644
--- a/dnn/src/arm_common/conv_bias/int8/strategy.h
+++ b/dnn/src/arm_common/conv_bias/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/strategy_2x3_8x8.cpp b/dnn/src/arm_common/conv_bias/int8/strategy_2x3_8x8.cpp
index d8efdc03..e92aab40 100644
--- a/dnn/src/arm_common/conv_bias/int8/strategy_2x3_8x8.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/strategy_2x3_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/strategy_2x3_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_4x4.cpp b/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_4x4.cpp
index 7f080f39..a9d3c0f6 100644
--- a/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_4x4.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_4x4.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/fp32/strategy_nchw44_2x3_4x4.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_8x8.cpp b/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_8x8.cpp
index 7ca25e1d..ab8310d2 100644
--- a/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_8x8.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/strategy_nchw44_2x3_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride1.cpp b/dnn/src/arm_common/conv_bias/int8/stride1.cpp
index a8a0c6f9..ed874005 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride1.h b/dnn/src/arm_common/conv_bias/int8/stride1.h
index b78157bb..7a02f20a 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride1.h
+++ b/dnn/src/arm_common/conv_bias/int8/stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.cpp b/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.cpp
index 603fedbb..e34e2b09 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride1_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.h b/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.h
index cf436726..5ae1be5c 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/int8/stride1_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride1_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride2.cpp b/dnn/src/arm_common/conv_bias/int8/stride2.cpp
index 1b6bd6ad..66e2c302 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride2.h b/dnn/src/arm_common/conv_bias/int8/stride2.h
index 4112c7d4..cf566e47 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride2.h
+++ b/dnn/src/arm_common/conv_bias/int8/stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.cpp b/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.cpp
index 459afc7c..0ca1dad2 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride2_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.h b/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.h
index d36e0843..c23cc62b 100644
--- a/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/int8/stride2_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8/stride2_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp
index ff5d16b9..39978f84 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/algos.h b/dnn/src/arm_common/conv_bias/int8x8x16/algos.h
index 9b83ac02..2977610b 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/algos.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel.h b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel.h
index ddf1c2e3..09c299cd 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel_int8x8x16_nchw44.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel_int8x8x16_nchw44.cpp
index 5cd5103d..6eeb7580 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel_int8x8x16_nchw44.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel_int8x8x16_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_kernel_int8x8x16_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h
index 6e214b82..599b5642 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.cpp
index e57d26f2..b56f033c 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.h b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.h
index b7b3dc4c..6a2668ff 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44_8x8x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/channel_wise_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.cpp
index 415997d4..c5b85bed 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.h b/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.h
index 8a07b25b..e319ed62 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/conv_direct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.cpp
index b3acfccf..7bca7c57 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.h b/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.h
index 7ec4af90..19aa599e 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/conv_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_algo.cpp
index 302aebe1..e09d61d9 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/conv_direct_int8x8x16_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_kern.h b/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_kern.h
index 34272f84..e307b8d9 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_8x8x16_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_aarch64.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_aarch64.cpp
index 6ac34629..f6e15969 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_aarch64.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_aarch64.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8_direct_nchw44_s1_aarch64.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_armv7.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_armv7.cpp
index 9d034208..2a4aec8a 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_armv7.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s1_armv7.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8_direct_nchw44_s1_armv7.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s2.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s2.cpp
index d3e7686f..d32eb0be 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/direct_kernels/int8x8x16_direct_nchw44_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_algo.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_algo.cpp
index b7f34be6..86ac80a5 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_algo.cpp
@@ -3,7 +3,7 @@
  dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_kern.h b/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_kern.h
index 9eb0fd56..2d518a31 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_kern.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_kern.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/int8x8x16/direct_nchw_nchw44_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl.h b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl.h
index 1f33ed79..38bc59eb 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl.h
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl.h
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s1.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s1.cpp
index adc7486c..8b959f54 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s1.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s1.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s2.cpp b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s2.cpp
index 67338769..050a7df8 100644
--- a/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s2.cpp
+++ b/dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s2.cpp
@@ -3,7 +3,7 @@
  * dnn/src/arm_common/conv_bias/int8x8x16/kernel/direct_nchw_nchw44_kern_impl_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/intrinsic_helper.h b/dnn/src/arm_common/conv_bias/intrinsic_helper.h
index a13388cb..2ee70d20 100644
--- a/dnn/src/arm_common/conv_bias/intrinsic_helper.h
+++ b/dnn/src/arm_common/conv_bias/intrinsic_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/intrinsic_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/matmul_postprocess.h b/dnn/src/arm_common/conv_bias/matmul_postprocess.h
index d15c03b9..456970e6 100644
--- a/dnn/src/arm_common/conv_bias/matmul_postprocess.h
+++ b/dnn/src/arm_common/conv_bias/matmul_postprocess.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/matmul_postprocess.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/opr_impl.cpp b/dnn/src/arm_common/conv_bias/opr_impl.cpp
index 4da12b88..0d2f0a55 100644
--- a/dnn/src/arm_common/conv_bias/opr_impl.cpp
+++ b/dnn/src/arm_common/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/opr_impl.h b/dnn/src/arm_common/conv_bias/opr_impl.h
index 6e9d94d5..28fb3d76 100644
--- a/dnn/src/arm_common/conv_bias/opr_impl.h
+++ b/dnn/src/arm_common/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/postprocess_helper.h b/dnn/src/arm_common/conv_bias/postprocess_helper.h
index 539a105f..df197742 100644
--- a/dnn/src/arm_common/conv_bias/postprocess_helper.h
+++ b/dnn/src/arm_common/conv_bias/postprocess_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/postprocess_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/algos.cpp b/dnn/src/arm_common/conv_bias/quint8/algos.cpp
index 2bd38104..e1c39593 100644
--- a/dnn/src/arm_common/conv_bias/quint8/algos.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/algos.h b/dnn/src/arm_common/conv_bias/quint8/algos.h
index df67c166..46143529 100644
--- a/dnn/src/arm_common/conv_bias/quint8/algos.h
+++ b/dnn/src/arm_common/conv_bias/quint8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/direct.cpp b/dnn/src/arm_common/conv_bias/quint8/direct.cpp
index a374817c..59490afa 100644
--- a/dnn/src/arm_common/conv_bias/quint8/direct.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/direct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/direct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/direct.h b/dnn/src/arm_common/conv_bias/quint8/direct.h
index 9475bb2b..74cf58fc 100644
--- a/dnn/src/arm_common/conv_bias/quint8/direct.h
+++ b/dnn/src/arm_common/conv_bias/quint8/direct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/direct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.cpp b/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.cpp
index 8005bbd4..20d3bbf2 100644
--- a/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/direct_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.h b/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.h
index 4ba49edb..caadc5e6 100644
--- a/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/quint8/direct_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/direct_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride1.cpp b/dnn/src/arm_common/conv_bias/quint8/stride1.cpp
index d07748e7..b0350d64 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride1.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride1.h b/dnn/src/arm_common/conv_bias/quint8/stride1.h
index a6553716..5f0f0606 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride1.h
+++ b/dnn/src/arm_common/conv_bias/quint8/stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.cpp b/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.cpp
index ae5e2357..5a005a4c 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.h b/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.h
index 3e5efe8e..dc702f3a 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride1_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride2.cpp b/dnn/src/arm_common/conv_bias/quint8/stride2.cpp
index 5527ea6f..718db855 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride2.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride2.h b/dnn/src/arm_common/conv_bias/quint8/stride2.h
index c70679e7..eca45c36 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride2.h
+++ b/dnn/src/arm_common/conv_bias/quint8/stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.cpp b/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.cpp
index 6aae1f3f..b06ba166 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.cpp
+++ b/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.h b/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.h
index bd8e9465..5191cf9a 100644
--- a/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.h
+++ b/dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/quint8/stride2_dotprod.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/conv_bias/winograd_common/winograd_common.h b/dnn/src/arm_common/conv_bias/winograd_common/winograd_common.h
index 345935a2..e5f63a28 100644
--- a/dnn/src/arm_common/conv_bias/winograd_common/winograd_common.h
+++ b/dnn/src/arm_common/conv_bias/winograd_common/winograd_common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/conv_bias/winograd_common/winograd_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/img2col_helper.h b/dnn/src/arm_common/convolution/img2col_helper.h
index f6e8e441..b830eee2 100644
--- a/dnn/src/arm_common/convolution/img2col_helper.h
+++ b/dnn/src/arm_common/convolution/img2col_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/img2col_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/algos.cpp b/dnn/src/arm_common/convolution/int8x8x32/algos.cpp
index 68eeef83..12cb2979 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/algos.cpp
+++ b/dnn/src/arm_common/convolution/int8x8x32/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/algos.h b/dnn/src/arm_common/convolution/int8x8x32/algos.h
index 44fc6e84..7181255e 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/algos.h
+++ b/dnn/src/arm_common/convolution/int8x8x32/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.cpp b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.cpp
index 6e45a10e..ccb0ae20 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.cpp
+++ b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.h b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.h
index eae4b531..4b97420e 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.h
+++ b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.cpp b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.cpp
index 8b17812d..e98b7f44 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.cpp
+++ b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.h b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.h
index d6c1b6de..24d91411 100644
--- a/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.h
+++ b/dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/int8x8x32/conv_backdata_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/opr_impl.cpp b/dnn/src/arm_common/convolution/opr_impl.cpp
index 822ad29b..9c5a9f95 100644
--- a/dnn/src/arm_common/convolution/opr_impl.cpp
+++ b/dnn/src/arm_common/convolution/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/opr_impl.h b/dnn/src/arm_common/convolution/opr_impl.h
index cc87b698..9d088fda 100644
--- a/dnn/src/arm_common/convolution/opr_impl.h
+++ b/dnn/src/arm_common/convolution/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/algos.cpp b/dnn/src/arm_common/convolution/quint8/algos.cpp
index bc531610..c6ececa2 100644
--- a/dnn/src/arm_common/convolution/quint8/algos.cpp
+++ b/dnn/src/arm_common/convolution/quint8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/algos.h b/dnn/src/arm_common/convolution/quint8/algos.h
index 74a12340..6f5d738f 100644
--- a/dnn/src/arm_common/convolution/quint8/algos.h
+++ b/dnn/src/arm_common/convolution/quint8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.cpp b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.cpp
index 8b0d1f6c..ab5ccbb7 100644
--- a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.cpp
+++ b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.h b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.h
index 588205fd..6e7c9ab7 100644
--- a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.h
+++ b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/conv_backdata_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.cpp b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.cpp
index e07c9ff5..d0f032ad 100644
--- a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.cpp
+++ b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.h b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.h
index 83732038..12068b1e 100644
--- a/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.h
+++ b/dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/convolution/quint8/conv_backdata_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/cvt_color/opr_impl.cpp b/dnn/src/arm_common/cvt_color/opr_impl.cpp
index fee255a1..d4238394 100644
--- a/dnn/src/arm_common/cvt_color/opr_impl.cpp
+++ b/dnn/src/arm_common/cvt_color/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/cvt_color/opr_impl.h b/dnn/src/arm_common/cvt_color/opr_impl.h
index c0938452..ef9b7d50 100644
--- a/dnn/src/arm_common/cvt_color/opr_impl.h
+++ b/dnn/src/arm_common/cvt_color/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/cvt_color/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/binary/algo.cpp b/dnn/src/arm_common/elemwise/binary/algo.cpp
index c3c0ddbb..e804a304 100644
--- a/dnn/src/arm_common/elemwise/binary/algo.cpp
+++ b/dnn/src/arm_common/elemwise/binary/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/binary/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/binary/algo.h b/dnn/src/arm_common/elemwise/binary/algo.h
index 20fb8f8d..65f13e3d 100644
--- a/dnn/src/arm_common/elemwise/binary/algo.h
+++ b/dnn/src/arm_common/elemwise/binary/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/binary/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/neon_mathfun.cpp b/dnn/src/arm_common/elemwise/neon_mathfun.cpp
index 99c9fbb4..d7439cea 100644
--- a/dnn/src/arm_common/elemwise/neon_mathfun.cpp
+++ b/dnn/src/arm_common/elemwise/neon_mathfun.cpp
@@ -3,7 +3,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/neon_mathfun.h b/dnn/src/arm_common/elemwise/neon_mathfun.h
index 131fab93..11937ecc 100644
--- a/dnn/src/arm_common/elemwise/neon_mathfun.h
+++ b/dnn/src/arm_common/elemwise/neon_mathfun.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/neon_mathfun.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/neon_util_impl_helper.h b/dnn/src/arm_common/elemwise/neon_util_impl_helper.h
index 40072066..8c642968 100644
--- a/dnn/src/arm_common/elemwise/neon_util_impl_helper.h
+++ b/dnn/src/arm_common/elemwise/neon_util_impl_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/neon_util_impl_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/opr_impl.cpp b/dnn/src/arm_common/elemwise/opr_impl.cpp
index c049cf5b..a5577835 100644
--- a/dnn/src/arm_common/elemwise/opr_impl.cpp
+++ b/dnn/src/arm_common/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/opr_impl.h b/dnn/src/arm_common/elemwise/opr_impl.h
index 8a2d6abb..43ab56a3 100644
--- a/dnn/src/arm_common/elemwise/opr_impl.h
+++ b/dnn/src/arm_common/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/ternary/algo.cpp b/dnn/src/arm_common/elemwise/ternary/algo.cpp
index ffae4970..8df76d1a 100644
--- a/dnn/src/arm_common/elemwise/ternary/algo.cpp
+++ b/dnn/src/arm_common/elemwise/ternary/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/ternary/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/ternary/algo.h b/dnn/src/arm_common/elemwise/ternary/algo.h
index 62a02d7e..0b9ce668 100644
--- a/dnn/src/arm_common/elemwise/ternary/algo.h
+++ b/dnn/src/arm_common/elemwise/ternary/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/ternary/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/unary/algo.cpp b/dnn/src/arm_common/elemwise/unary/algo.cpp
index e8faaabe..4b59b7e6 100644
--- a/dnn/src/arm_common/elemwise/unary/algo.cpp
+++ b/dnn/src/arm_common/elemwise/unary/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/unary/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise/unary/algo.h b/dnn/src/arm_common/elemwise/unary/algo.h
index 881162f6..d85b65e2 100644
--- a/dnn/src/arm_common/elemwise/unary/algo.h
+++ b/dnn/src/arm_common/elemwise/unary/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise/unary/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/abs.h b/dnn/src/arm_common/elemwise_helper/kimpl/abs.h
index 14e56714..97b4f5ec 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/abs.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/abs.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/abs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/add.h b/dnn/src/arm_common/elemwise_helper/kimpl/add.h
index a6462100..2083264b 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/add.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/add.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/add.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/exp.h b/dnn/src/arm_common/elemwise_helper/kimpl/exp.h
index 6dfea966..bd3af8b1 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/exp.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/exp.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/exp.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fast_tanh.h b/dnn/src/arm_common/elemwise_helper/kimpl/fast_tanh.h
index fcd5ebbf..29a4e4fa 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fast_tanh.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fast_tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fast_tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_h_swish.h b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_h_swish.h
index a1f606a1..2e777c2f 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_h_swish.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_h_swish.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_h_swish.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_relu.h b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_relu.h
index b5325ffe..7fe16b30 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_relu.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_relu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_relu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_sigmoid.h b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_sigmoid.h
index 50a94e4d..b3b33c0e 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_sigmoid.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_sigmoid.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_sigmoid.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_tanh.h b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_tanh.h
index c18d8b47..3716c49b 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_tanh.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fuse_add_tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_mul_add3.h b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_mul_add3.h
index 871ca5f4..cb30c3b3 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/fuse_mul_add3.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/fuse_mul_add3.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/fuse_mul_add3.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/hswish.h b/dnn/src/arm_common/elemwise_helper/kimpl/hswish.h
index d1774ada..22f5daae 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/hswish.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/hswish.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/hswish.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_epilogue.h b/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_epilogue.h
index 61f3472e..6a273813 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_epilogue.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_prologue.h b/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_prologue.h
index edbf2253..52843c95 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_prologue.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_prologue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/kern_macro_prologue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/max.h b/dnn/src/arm_common/elemwise_helper/kimpl/max.h
index 17e4bb63..1dce3896 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/max.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/max.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/max.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/min.h b/dnn/src/arm_common/elemwise_helper/kimpl/min.h
index 59f623be..9abb4ef3 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/min.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/min.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/min.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/mul.h b/dnn/src/arm_common/elemwise_helper/kimpl/mul.h
index e20c082d..ac57f94e 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/mul.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/mul.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/mul.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/none.h b/dnn/src/arm_common/elemwise_helper/kimpl/none.h
index 6c3aa479..06ee4765 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/none.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/none.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/none.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/op_base.h b/dnn/src/arm_common/elemwise_helper/kimpl/op_base.h
index e1cdbbd9..7345208e 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/op_base.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/op_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/op_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/pow.h b/dnn/src/arm_common/elemwise_helper/kimpl/pow.h
index d8b9b982..7250ac84 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/pow.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/pow.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/pow.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/relu.h b/dnn/src/arm_common/elemwise_helper/kimpl/relu.h
index cd52b5ba..9a11e511 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/relu.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/relu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/relu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/rmulh.h b/dnn/src/arm_common/elemwise_helper/kimpl/rmulh.h
index 89e387f3..476f2969 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/rmulh.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/rmulh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/rmulh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/sigmoid.h b/dnn/src/arm_common/elemwise_helper/kimpl/sigmoid.h
index c7928373..f8dc2bad 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/sigmoid.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/sigmoid.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/sigmoid.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/sub.h b/dnn/src/arm_common/elemwise_helper/kimpl/sub.h
index 73a13227..34da13ec 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/sub.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/sub.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/sub.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/tanh.h b/dnn/src/arm_common/elemwise_helper/kimpl/tanh.h
index dc8b73c2..ecfdcc5c 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/tanh.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/true_div.h b/dnn/src/arm_common/elemwise_helper/kimpl/true_div.h
index d9341482..cd1bd628 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/true_div.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/true_div.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/true_div.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/kimpl/typecvt.h b/dnn/src/arm_common/elemwise_helper/kimpl/typecvt.h
index 15c5e106..1cdfba02 100644
--- a/dnn/src/arm_common/elemwise_helper/kimpl/typecvt.h
+++ b/dnn/src/arm_common/elemwise_helper/kimpl/typecvt.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/kimpl/typecvt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/op_binary.h b/dnn/src/arm_common/elemwise_helper/op_binary.h
index 2d1ada02..5b263681 100644
--- a/dnn/src/arm_common/elemwise_helper/op_binary.h
+++ b/dnn/src/arm_common/elemwise_helper/op_binary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/op_binary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/op_ternary.h b/dnn/src/arm_common/elemwise_helper/op_ternary.h
index 26ea4fcc..8b9be8b7 100644
--- a/dnn/src/arm_common/elemwise_helper/op_ternary.h
+++ b/dnn/src/arm_common/elemwise_helper/op_ternary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/op_ternary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_helper/op_unary.h b/dnn/src/arm_common/elemwise_helper/op_unary.h
index ce901224..80cde07a 100644
--- a/dnn/src/arm_common/elemwise_helper/op_unary.h
+++ b/dnn/src/arm_common/elemwise_helper/op_unary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_helper/op_unary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_multi_type/opr_impl.cpp b/dnn/src/arm_common/elemwise_multi_type/opr_impl.cpp
index 855984a1..c975996c 100644
--- a/dnn/src/arm_common/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/arm_common/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_multi_type/opr_impl.h b/dnn/src/arm_common/elemwise_multi_type/opr_impl.h
index 5cfdd25d..ed57b76c 100644
--- a/dnn/src/arm_common/elemwise_multi_type/opr_impl.h
+++ b/dnn/src/arm_common/elemwise_multi_type/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_multi_type/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/elemwise_op.h b/dnn/src/arm_common/elemwise_op.h
index 54795ebc..5f10fbb8 100644
--- a/dnn/src/arm_common/elemwise_op.h
+++ b/dnn/src/arm_common/elemwise_op.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/elemwise_op.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/handle.cpp b/dnn/src/arm_common/handle.cpp
index 8fca423f..5283a306 100644
--- a/dnn/src/arm_common/handle.cpp
+++ b/dnn/src/arm_common/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/handle.h b/dnn/src/arm_common/handle.h
index eaa46f8d..03888658 100644
--- a/dnn/src/arm_common/handle.h
+++ b/dnn/src/arm_common/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/intrinsic_helper.h b/dnn/src/arm_common/intrinsic_helper.h
index 65ed5aeb..6db691e6 100644
--- a/dnn/src/arm_common/intrinsic_helper.h
+++ b/dnn/src/arm_common/intrinsic_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/intrinsic_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/local/opr_impl.cpp b/dnn/src/arm_common/local/opr_impl.cpp
index 578e4da1..a871aa30 100644
--- a/dnn/src/arm_common/local/opr_impl.cpp
+++ b/dnn/src/arm_common/local/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/local/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/local/opr_impl.h b/dnn/src/arm_common/local/opr_impl.h
index f19d06c2..8e74efcb 100644
--- a/dnn/src/arm_common/local/opr_impl.h
+++ b/dnn/src/arm_common/local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/algos.cpp b/dnn/src/arm_common/matrix_mul/algos.cpp
index b4aff5ba..ef2e66ae 100644
--- a/dnn/src/arm_common/matrix_mul/algos.cpp
+++ b/dnn/src/arm_common/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/algos.h b/dnn/src/arm_common/matrix_mul/algos.h
index 0cbb7289..eb91e273 100644
--- a/dnn/src/arm_common/matrix_mul/algos.h
+++ b/dnn/src/arm_common/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.cpp b/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.cpp
index bf5a77d2..56966512 100644
--- a/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.cpp
+++ b/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.h b/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.h
index 50fb8186..50a57269 100644
--- a/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.h
+++ b/dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/exec_gemm_int8_int8_int16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/fp16/hgemv.cpp b/dnn/src/arm_common/matrix_mul/fp16/hgemv.cpp
index 0a9e5db2..56531c46 100644
--- a/dnn/src/arm_common/matrix_mul/fp16/hgemv.cpp
+++ b/dnn/src/arm_common/matrix_mul/fp16/hgemv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/fp16/hgemv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/fp16/hgemv.h b/dnn/src/arm_common/matrix_mul/fp16/hgemv.h
index 68a186b7..88d52f44 100644
--- a/dnn/src/arm_common/matrix_mul/fp16/hgemv.h
+++ b/dnn/src/arm_common/matrix_mul/fp16/hgemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/fp16/hgemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.cpp b/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.cpp
index daba2abc..72aafce3 100644
--- a/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.cpp
+++ b/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.h b/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.h
index b1cb1491..fc5a6c82 100644
--- a/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.h
+++ b/dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/fp32/exec_sgemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/int8/gemv.cpp b/dnn/src/arm_common/matrix_mul/int8/gemv.cpp
index 4fa50802..361f2ba2 100644
--- a/dnn/src/arm_common/matrix_mul/int8/gemv.cpp
+++ b/dnn/src/arm_common/matrix_mul/int8/gemv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/int8/gemv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/int8/gemv.h b/dnn/src/arm_common/matrix_mul/int8/gemv.h
index 9c8d6c69..54c63d0f 100644
--- a/dnn/src/arm_common/matrix_mul/int8/gemv.h
+++ b/dnn/src/arm_common/matrix_mul/int8/gemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/int8/gemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/opr_impl.cpp b/dnn/src/arm_common/matrix_mul/opr_impl.cpp
index a2dcd28c..771a11c0 100644
--- a/dnn/src/arm_common/matrix_mul/opr_impl.cpp
+++ b/dnn/src/arm_common/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/matrix_mul/opr_impl.h b/dnn/src/arm_common/matrix_mul/opr_impl.h
index 2ea5e7d6..00deb601 100644
--- a/dnn/src/arm_common/matrix_mul/opr_impl.h
+++ b/dnn/src/arm_common/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/neon_struct.h b/dnn/src/arm_common/neon_struct.h
index 7edc8134..a70f4542 100644
--- a/dnn/src/arm_common/neon_struct.h
+++ b/dnn/src/arm_common/neon_struct.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/neon_struct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/algo.cpp b/dnn/src/arm_common/pooling/algo.cpp
index 62419758..286c32f5 100644
--- a/dnn/src/arm_common/pooling/algo.cpp
+++ b/dnn/src/arm_common/pooling/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/algo.h b/dnn/src/arm_common/pooling/algo.h
index aea62d62..15929411 100644
--- a/dnn/src/arm_common/pooling/algo.h
+++ b/dnn/src/arm_common/pooling/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/algo_fp32_pooling_nchw44.cpp b/dnn/src/arm_common/pooling/algo_fp32_pooling_nchw44.cpp
index 8f9b2231..c8d6a9c8 100644
--- a/dnn/src/arm_common/pooling/algo_fp32_pooling_nchw44.cpp
+++ b/dnn/src/arm_common/pooling/algo_fp32_pooling_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/algo_fp32_pooling_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.cpp b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.cpp
index 53d6ad37..8f587c72 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.cpp
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.h b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.h
index b009613c..e5c877f6 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.h
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.cpp b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.cpp
index f422f8c2..c0489df8 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.cpp
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.h b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.h
index a87e5773..92eacbc4 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.h
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_float16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.cpp b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.cpp
index 5d93d43e..7f1b7145 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.cpp
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.h b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.h
index 68c884f0..ca834b80 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.h
+++ b/dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_3x3_s2x2_int8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.cpp b/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.cpp
index 6005bac5..83f61a16 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.cpp
+++ b/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.h b/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.h
index df730504..cc7d8197 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.h
+++ b/dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_w2x2_s2x2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.cpp b/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.cpp
index f5cb8093..e74dfd8b 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.cpp
+++ b/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.h b/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.h
index cf7839b3..2a80c52b 100644
--- a/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.h
+++ b/dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_w4x4_s2x2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.cpp b/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.cpp
index 6d38c0d1..a4f0cf69 100644
--- a/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.cpp
+++ b/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.h b/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.h
index a23e1019..ae2474a9 100644
--- a/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.h
+++ b/dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_2x2_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.cpp b/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.cpp
index be009280..e8975e4a 100644
--- a/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.cpp
+++ b/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.h b/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.h
index 00cc4803..200d67b8 100644
--- a/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.h
+++ b/dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_3x3_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.cpp b/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.cpp
index cf4a514c..f2facbf9 100644
--- a/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.cpp
+++ b/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_max_pooling_4x4_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.h b/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.h
index 0e9741e9..9fc7025d 100644
--- a/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.h
+++ b/dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_4x4_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.cpp b/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.cpp
index a7e5c0f9..511f1a11 100644
--- a/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.cpp
+++ b/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.h b/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.h
index 11062e32..d8405904 100644
--- a/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.h
+++ b/dnn/src/arm_common/pooling/do_pooling_5x5_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/do__pooling_5x5_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/kern_fp32_pooling_nchw44.h b/dnn/src/arm_common/pooling/kern_fp32_pooling_nchw44.h
index 72d97d87..a4050c39 100644
--- a/dnn/src/arm_common/pooling/kern_fp32_pooling_nchw44.h
+++ b/dnn/src/arm_common/pooling/kern_fp32_pooling_nchw44.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/kern_fp32_pooling_nchw44.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/opr_impl.cpp b/dnn/src/arm_common/pooling/opr_impl.cpp
index ef7c7a6b..4acf320b 100644
--- a/dnn/src/arm_common/pooling/opr_impl.cpp
+++ b/dnn/src/arm_common/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/opr_impl.h b/dnn/src/arm_common/pooling/opr_impl.h
index b198f68f..fca7d282 100644
--- a/dnn/src/arm_common/pooling/opr_impl.h
+++ b/dnn/src/arm_common/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/pooling/pooling_helper.h b/dnn/src/arm_common/pooling/pooling_helper.h
index e14128a3..32c8a5f5 100644
--- a/dnn/src/arm_common/pooling/pooling_helper.h
+++ b/dnn/src/arm_common/pooling/pooling_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/pooling/pooling_hleper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/quantized_converter.h b/dnn/src/arm_common/quantized_converter.h
index 1586bca2..6959a3b3 100644
--- a/dnn/src/arm_common/quantized_converter.h
+++ b/dnn/src/arm_common/quantized_converter.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/quantized_converter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/reduce/opr_impl.cpp b/dnn/src/arm_common/reduce/opr_impl.cpp
index 70457f42..5f128bab 100644
--- a/dnn/src/arm_common/reduce/opr_impl.cpp
+++ b/dnn/src/arm_common/reduce/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/reduce/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/reduce/opr_impl.h b/dnn/src/arm_common/reduce/opr_impl.h
index 2374ea9e..5179872f 100644
--- a/dnn/src/arm_common/reduce/opr_impl.h
+++ b/dnn/src/arm_common/reduce/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/reduce/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/resize/opr_impl.cpp b/dnn/src/arm_common/resize/opr_impl.cpp
index 8c46f5f6..3f448ae7 100644
--- a/dnn/src/arm_common/resize/opr_impl.cpp
+++ b/dnn/src/arm_common/resize/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/resize/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/resize/opr_impl.h b/dnn/src/arm_common/resize/opr_impl.h
index 5e4b6f31..59ac687b 100644
--- a/dnn/src/arm_common/resize/opr_impl.h
+++ b/dnn/src/arm_common/resize/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/resize/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/resize/resize_cv.cpp b/dnn/src/arm_common/resize/resize_cv.cpp
index ab85695d..1c8314af 100644
--- a/dnn/src/arm_common/resize/resize_cv.cpp
+++ b/dnn/src/arm_common/resize/resize_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/resize/resize_cv.h b/dnn/src/arm_common/resize/resize_cv.h
index 7b2093b6..491237f3 100644
--- a/dnn/src/arm_common/resize/resize_cv.h
+++ b/dnn/src/arm_common/resize/resize_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/resize/resize_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_conv/opr_impl.cpp b/dnn/src/arm_common/separable_conv/opr_impl.cpp
index f4ddb1fa..9f28185e 100644
--- a/dnn/src/arm_common/separable_conv/opr_impl.cpp
+++ b/dnn/src/arm_common/separable_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_conv/opr_impl.h b/dnn/src/arm_common/separable_conv/opr_impl.h
index 352c8a7e..509da5ff 100644
--- a/dnn/src/arm_common/separable_conv/opr_impl.h
+++ b/dnn/src/arm_common/separable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_conv/sep_conv_common.h b/dnn/src/arm_common/separable_conv/sep_conv_common.h
index e8a93759..2f226257 100644
--- a/dnn/src/arm_common/separable_conv/sep_conv_common.h
+++ b/dnn/src/arm_common/separable_conv/sep_conv_common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_conv/sep_conv_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_conv/sep_conv_filter.h b/dnn/src/arm_common/separable_conv/sep_conv_filter.h
index d25a44f6..876f68de 100644
--- a/dnn/src/arm_common/separable_conv/sep_conv_filter.h
+++ b/dnn/src/arm_common/separable_conv/sep_conv_filter.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_conv/sep_conv_filter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_conv/sep_conv_filter_engine.cpp b/dnn/src/arm_common/separable_conv/sep_conv_filter_engine.cpp
index 67ffe737..009aabbf 100644
--- a/dnn/src/arm_common/separable_conv/sep_conv_filter_engine.cpp
+++ b/dnn/src/arm_common/separable_conv/sep_conv_filter_engine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_conv/sep_conv_filter_engine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_filter/filter.h b/dnn/src/arm_common/separable_filter/filter.h
index b4386656..a133b8bd 100644
--- a/dnn/src/arm_common/separable_filter/filter.h
+++ b/dnn/src/arm_common/separable_filter/filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_filter/opr_impl.cpp b/dnn/src/arm_common/separable_filter/opr_impl.cpp
index dbf1fc49..e5bad9b0 100644
--- a/dnn/src/arm_common/separable_filter/opr_impl.cpp
+++ b/dnn/src/arm_common/separable_filter/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/separable_filter/opr_impl.h b/dnn/src/arm_common/separable_filter/opr_impl.h
index b7ef816b..b3e4c3b0 100644
--- a/dnn/src/arm_common/separable_filter/opr_impl.h
+++ b/dnn/src/arm_common/separable_filter/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/separable_filter/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/simd_macro/marm_neon.cpp b/dnn/src/arm_common/simd_macro/marm_neon.cpp
index 97218b0f..694b2e2b 100644
--- a/dnn/src/arm_common/simd_macro/marm_neon.cpp
+++ b/dnn/src/arm_common/simd_macro/marm_neon.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/simd_macro/marm_neon.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/simd_macro/marm_neon.h b/dnn/src/arm_common/simd_macro/marm_neon.h
index b07d87c0..8439c5fe 100644
--- a/dnn/src/arm_common/simd_macro/marm_neon.h
+++ b/dnn/src/arm_common/simd_macro/marm_neon.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/simd_macro/marm_neon.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/simd_macro/neon_helper.h b/dnn/src/arm_common/simd_macro/neon_helper.h
index b77105b2..19d1aeca 100644
--- a/dnn/src/arm_common/simd_macro/neon_helper.h
+++ b/dnn/src/arm_common/simd_macro/neon_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/simd_macro/neon_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/simd_macro/neon_helper_epilogue.h b/dnn/src/arm_common/simd_macro/neon_helper_epilogue.h
index 7618ce0c..816a2a54 100644
--- a/dnn/src/arm_common/simd_macro/neon_helper_epilogue.h
+++ b/dnn/src/arm_common/simd_macro/neon_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/simd_macro/neon_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/simd_macro/neon_helper_fp16.h b/dnn/src/arm_common/simd_macro/neon_helper_fp16.h
index e581b74b..abaf81e4 100644
--- a/dnn/src/arm_common/simd_macro/neon_helper_fp16.h
+++ b/dnn/src/arm_common/simd_macro/neon_helper_fp16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/simd_macro/neon_helper_fp16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/type_cvt/opr_impl.cpp b/dnn/src/arm_common/type_cvt/opr_impl.cpp
index 13545e3b..84c0c7e1 100644
--- a/dnn/src/arm_common/type_cvt/opr_impl.cpp
+++ b/dnn/src/arm_common/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/type_cvt/opr_impl.h b/dnn/src/arm_common/type_cvt/opr_impl.h
index ab835b61..eaa58da0 100644
--- a/dnn/src/arm_common/type_cvt/opr_impl.h
+++ b/dnn/src/arm_common/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/utils.cpp b/dnn/src/arm_common/utils.cpp
index 48e3b3fd..18922e84 100644
--- a/dnn/src/arm_common/utils.cpp
+++ b/dnn/src/arm_common/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/utils.h b/dnn/src/arm_common/utils.h
index d5d368fc..577231a5 100644
--- a/dnn/src/arm_common/utils.h
+++ b/dnn/src/arm_common/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_affine/opr_impl.cpp b/dnn/src/arm_common/warp_affine/opr_impl.cpp
index 0ef52511..bafa6d4b 100644
--- a/dnn/src/arm_common/warp_affine/opr_impl.cpp
+++ b/dnn/src/arm_common/warp_affine/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_affine/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_affine/opr_impl.h b/dnn/src/arm_common/warp_affine/opr_impl.h
index ad7cf3e2..4018938f 100644
--- a/dnn/src/arm_common/warp_affine/opr_impl.h
+++ b/dnn/src/arm_common/warp_affine/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_affine/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_affine/warp_affine_cv.cpp b/dnn/src/arm_common/warp_affine/warp_affine_cv.cpp
index 58da0162..b17116cb 100644
--- a/dnn/src/arm_common/warp_affine/warp_affine_cv.cpp
+++ b/dnn/src/arm_common/warp_affine/warp_affine_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_affine/warp_affine_cv.h b/dnn/src/arm_common/warp_affine/warp_affine_cv.h
index 4005343b..0b2cf588 100644
--- a/dnn/src/arm_common/warp_affine/warp_affine_cv.h
+++ b/dnn/src/arm_common/warp_affine/warp_affine_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_affine/warp_affine_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_perspective/opr_impl.cpp b/dnn/src/arm_common/warp_perspective/opr_impl.cpp
index 36f01ed6..2422731d 100644
--- a/dnn/src/arm_common/warp_perspective/opr_impl.cpp
+++ b/dnn/src/arm_common/warp_perspective/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_perspective/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_perspective/opr_impl.h b/dnn/src/arm_common/warp_perspective/opr_impl.h
index e533618e..affaf246 100644
--- a/dnn/src/arm_common/warp_perspective/opr_impl.h
+++ b/dnn/src/arm_common/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_perspective/warp_perspective_cv.cpp b/dnn/src/arm_common/warp_perspective/warp_perspective_cv.cpp
index caac428c..11a069f0 100644
--- a/dnn/src/arm_common/warp_perspective/warp_perspective_cv.cpp
+++ b/dnn/src/arm_common/warp_perspective/warp_perspective_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/arm_common/warp_perspective/warp_perspective_cv.h b/dnn/src/arm_common/warp_perspective/warp_perspective_cv.h
index d64705fb..4a4ff95c 100644
--- a/dnn/src/arm_common/warp_perspective/warp_perspective_cv.h
+++ b/dnn/src/arm_common/warp_perspective/warp_perspective_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/arm_common/warp_perspective/warp_perspective_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/int8/algos.cpp b/dnn/src/armv7/conv_bias/int8/algos.cpp
index e4e9450c..3fd1c089 100644
--- a/dnn/src/armv7/conv_bias/int8/algos.cpp
+++ b/dnn/src/armv7/conv_bias/int8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/int8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/int8/algos.h b/dnn/src/armv7/conv_bias/int8/algos.h
index b0cb6f93..91127476 100644
--- a/dnn/src/armv7/conv_bias/int8/algos.h
+++ b/dnn/src/armv7/conv_bias/int8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/int8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/int8/strategy.cpp b/dnn/src/armv7/conv_bias/int8/strategy.cpp
index c92fae47..1a51a07e 100644
--- a/dnn/src/armv7/conv_bias/int8/strategy.cpp
+++ b/dnn/src/armv7/conv_bias/int8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/int8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/int8/strategy.h b/dnn/src/armv7/conv_bias/int8/strategy.h
index 5ba29af3..c722b0b8 100644
--- a/dnn/src/armv7/conv_bias/int8/strategy.h
+++ b/dnn/src/armv7/conv_bias/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/opr_impl.cpp b/dnn/src/armv7/conv_bias/opr_impl.cpp
index 53421925..d34cd2c1 100644
--- a/dnn/src/armv7/conv_bias/opr_impl.cpp
+++ b/dnn/src/armv7/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/opr_impl.h b/dnn/src/armv7/conv_bias/opr_impl.h
index 744dc37e..cfc6ee14 100644
--- a/dnn/src/armv7/conv_bias/opr_impl.h
+++ b/dnn/src/armv7/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/quint8/algos.cpp b/dnn/src/armv7/conv_bias/quint8/algos.cpp
index 9ba1f560..e83996d2 100644
--- a/dnn/src/armv7/conv_bias/quint8/algos.cpp
+++ b/dnn/src/armv7/conv_bias/quint8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/quint8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/quint8/algos.h b/dnn/src/armv7/conv_bias/quint8/algos.h
index 6dd0b8dc..de5e2f66 100644
--- a/dnn/src/armv7/conv_bias/quint8/algos.h
+++ b/dnn/src/armv7/conv_bias/quint8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/quint8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/quint8/strategy.cpp b/dnn/src/armv7/conv_bias/quint8/strategy.cpp
index d3385015..f30aa761 100644
--- a/dnn/src/armv7/conv_bias/quint8/strategy.cpp
+++ b/dnn/src/armv7/conv_bias/quint8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/quint8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/conv_bias/quint8/strategy.h b/dnn/src/armv7/conv_bias/quint8/strategy.h
index c34d0776..3320086c 100644
--- a/dnn/src/armv7/conv_bias/quint8/strategy.h
+++ b/dnn/src/armv7/conv_bias/quint8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/conv_bias/quint8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/handle.cpp b/dnn/src/armv7/handle.cpp
index 7a381a94..62fea3a7 100644
--- a/dnn/src/armv7/handle.cpp
+++ b/dnn/src/armv7/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/handle.h b/dnn/src/armv7/handle.h
index 7c5b03d7..971424c3 100644
--- a/dnn/src/armv7/handle.h
+++ b/dnn/src/armv7/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/algos.cpp b/dnn/src/armv7/matrix_mul/algos.cpp
index 20bf00ae..e88efa6e 100644
--- a/dnn/src/armv7/matrix_mul/algos.cpp
+++ b/dnn/src/armv7/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/algos.h b/dnn/src/armv7/matrix_mul/algos.h
index 2be450fa..fc1ae72b 100644
--- a/dnn/src/armv7/matrix_mul/algos.h
+++ b/dnn/src/armv7/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/asm/common.h b/dnn/src/armv7/matrix_mul/asm/common.h
index 442dc67f..2dd75734 100644
--- a/dnn/src/armv7/matrix_mul/asm/common.h
+++ b/dnn/src/armv7/matrix_mul/asm/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/asm/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp16/strategy.cpp b/dnn/src/armv7/matrix_mul/fp16/strategy.cpp
index 214787ed..63875be5 100644
--- a/dnn/src/armv7/matrix_mul/fp16/strategy.cpp
+++ b/dnn/src/armv7/matrix_mul/fp16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp16/strategy.h b/dnn/src/armv7/matrix_mul/fp16/strategy.h
index 4b10675d..f25eeb5d 100644
--- a/dnn/src/armv7/matrix_mul/fp16/strategy.h
+++ b/dnn/src/armv7/matrix_mul/fp16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp16/strategy_mk8_4x8.cpp b/dnn/src/armv7/matrix_mul/fp16/strategy_mk8_4x8.cpp
index a8cb2b56..d4c951da 100644
--- a/dnn/src/armv7/matrix_mul/fp16/strategy_mk8_4x8.cpp
+++ b/dnn/src/armv7/matrix_mul/fp16/strategy_mk8_4x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp16/strategy_mk8_4x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp32/strategy.h b/dnn/src/armv7/matrix_mul/fp32/strategy.h
index ef50e8a8..7bba0a83 100644
--- a/dnn/src/armv7/matrix_mul/fp32/strategy.h
+++ b/dnn/src/armv7/matrix_mul/fp32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp32/strategy_4x12.cpp b/dnn/src/armv7/matrix_mul/fp32/strategy_4x12.cpp
index 1686be77..502a78e6 100644
--- a/dnn/src/armv7/matrix_mul/fp32/strategy_4x12.cpp
+++ b/dnn/src/armv7/matrix_mul/fp32/strategy_4x12.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp32/strategy_4x12.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp32/strategy_mk4_4x8.cpp b/dnn/src/armv7/matrix_mul/fp32/strategy_mk4_4x8.cpp
index de897ae7..e7fcf67f 100644
--- a/dnn/src/armv7/matrix_mul/fp32/strategy_mk4_4x8.cpp
+++ b/dnn/src/armv7/matrix_mul/fp32/strategy_mk4_4x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp32/strategy_mk4_4x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/fp32/strategy_mk_4x12.cpp b/dnn/src/armv7/matrix_mul/fp32/strategy_mk_4x12.cpp
index db89491b..233eb302 100644
--- a/dnn/src/armv7/matrix_mul/fp32/strategy_mk_4x12.cpp
+++ b/dnn/src/armv7/matrix_mul/fp32/strategy_mk_4x12.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/fp32/strategy_mk_4x12.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int16x16x32/kernel_12x4x1.h b/dnn/src/armv7/matrix_mul/int16x16x32/kernel_12x4x1.h
index e100c03b..ac4e0236 100644
--- a/dnn/src/armv7/matrix_mul/int16x16x32/kernel_12x4x1.h
+++ b/dnn/src/armv7/matrix_mul/int16x16x32/kernel_12x4x1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int16x16x32/kernel_12x4x1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int16x16x32/strategy.cpp b/dnn/src/armv7/matrix_mul/int16x16x32/strategy.cpp
index 08ae30a9..f5b470bc 100644
--- a/dnn/src/armv7/matrix_mul/int16x16x32/strategy.cpp
+++ b/dnn/src/armv7/matrix_mul/int16x16x32/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int16x16x32/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int16x16x32/strategy.h b/dnn/src/armv7/matrix_mul/int16x16x32/strategy.h
index d550ac80..6a2b0a1f 100644
--- a/dnn/src/armv7/matrix_mul/int16x16x32/strategy.h
+++ b/dnn/src/armv7/matrix_mul/int16x16x32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int16x16x32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int16x16x32/strategy_mk8_4x8.cpp b/dnn/src/armv7/matrix_mul/int16x16x32/strategy_mk8_4x8.cpp
index 62243f42..8982a269 100644
--- a/dnn/src/armv7/matrix_mul/int16x16x32/strategy_mk8_4x8.cpp
+++ b/dnn/src/armv7/matrix_mul/int16x16x32/strategy_mk8_4x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int16x16x32/strategy_mk8_4x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/kernel_4x2x16.h b/dnn/src/armv7/matrix_mul/int8/kernel_4x2x16.h
index 1b5c9dd9..d06fa584 100644
--- a/dnn/src/armv7/matrix_mul/int8/kernel_4x2x16.h
+++ b/dnn/src/armv7/matrix_mul/int8/kernel_4x2x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/kernel_4x2x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/kernel_4x8x8.h b/dnn/src/armv7/matrix_mul/int8/kernel_4x8x8.h
index 411bfcd5..e664df95 100644
--- a/dnn/src/armv7/matrix_mul/int8/kernel_4x8x8.h
+++ b/dnn/src/armv7/matrix_mul/int8/kernel_4x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/kernel_4x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/kernel_6x8x4.h b/dnn/src/armv7/matrix_mul/int8/kernel_6x8x4.h
index f76c5395..ac0c7efb 100644
--- a/dnn/src/armv7/matrix_mul/int8/kernel_6x8x4.h
+++ b/dnn/src/armv7/matrix_mul/int8/kernel_6x8x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/kernel_6x8x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/kernel_mk4_4x2x16.h b/dnn/src/armv7/matrix_mul/int8/kernel_mk4_4x2x16.h
index 2692dcf6..a29970d1 100644
--- a/dnn/src/armv7/matrix_mul/int8/kernel_mk4_4x2x16.h
+++ b/dnn/src/armv7/matrix_mul/int8/kernel_mk4_4x2x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/kernel_mk4_4x2x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/kernel_mk4_dot_8x4x4.h b/dnn/src/armv7/matrix_mul/int8/kernel_mk4_dot_8x4x4.h
index 1b76ef8a..84626797 100644
--- a/dnn/src/armv7/matrix_mul/int8/kernel_mk4_dot_8x4x4.h
+++ b/dnn/src/armv7/matrix_mul/int8/kernel_mk4_dot_8x4x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/kernel_mk4_dot_8x4x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/strategy.cpp b/dnn/src/armv7/matrix_mul/int8/strategy.cpp
index 08934700..57d05559 100644
--- a/dnn/src/armv7/matrix_mul/int8/strategy.cpp
+++ b/dnn/src/armv7/matrix_mul/int8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8/strategy.h b/dnn/src/armv7/matrix_mul/int8/strategy.h
index 0f2b15e9..2f7302b2 100644
--- a/dnn/src/armv7/matrix_mul/int8/strategy.h
+++ b/dnn/src/armv7/matrix_mul/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x2x16.h b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x2x16.h
index 8f24b5a0..dffbcf09 100644
--- a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x2x16.h
+++ b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x2x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x2x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x8x8.h b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x8x8.h
index 0af6a9f6..1cd6bdf2 100644
--- a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x8x8.h
+++ b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/kernel_4x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h
index 59a2c2be..9ac25ee5 100644
--- a/dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h
+++ b/dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/kernel_mk4_8x8x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8x8x16/strategy.cpp b/dnn/src/armv7/matrix_mul/int8x8x16/strategy.cpp
index 0a1bac5f..0f9fb4db 100644
--- a/dnn/src/armv7/matrix_mul/int8x8x16/strategy.cpp
+++ b/dnn/src/armv7/matrix_mul/int8x8x16/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/int8x8x16/strategy.h b/dnn/src/armv7/matrix_mul/int8x8x16/strategy.h
index 7307b0c1..d395cbcd 100644
--- a/dnn/src/armv7/matrix_mul/int8x8x16/strategy.h
+++ b/dnn/src/armv7/matrix_mul/int8x8x16/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/int8x8x16/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/opr_impl.cpp b/dnn/src/armv7/matrix_mul/opr_impl.cpp
index a2807a56..6db2ee13 100644
--- a/dnn/src/armv7/matrix_mul/opr_impl.cpp
+++ b/dnn/src/armv7/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/opr_impl.h b/dnn/src/armv7/matrix_mul/opr_impl.h
index 8ff401f7..20448525 100644
--- a/dnn/src/armv7/matrix_mul/opr_impl.h
+++ b/dnn/src/armv7/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/quint8/kernel_4x8x8.h b/dnn/src/armv7/matrix_mul/quint8/kernel_4x8x8.h
index fb917bd7..3556a186 100644
--- a/dnn/src/armv7/matrix_mul/quint8/kernel_4x8x8.h
+++ b/dnn/src/armv7/matrix_mul/quint8/kernel_4x8x8.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/quint8/kernel_4x8x8.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/quint8/kernel_dot_4x8x4.h b/dnn/src/armv7/matrix_mul/quint8/kernel_dot_4x8x4.h
index 6d92cebd..c99eb877 100644
--- a/dnn/src/armv7/matrix_mul/quint8/kernel_dot_4x8x4.h
+++ b/dnn/src/armv7/matrix_mul/quint8/kernel_dot_4x8x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/quint8/kernel_dot_4x8x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/quint8/strategy.cpp b/dnn/src/armv7/matrix_mul/quint8/strategy.cpp
index acbcb4db..87a93890 100644
--- a/dnn/src/armv7/matrix_mul/quint8/strategy.cpp
+++ b/dnn/src/armv7/matrix_mul/quint8/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/quint8/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/matrix_mul/quint8/strategy.h b/dnn/src/armv7/matrix_mul/quint8/strategy.h
index d732e47e..170a1ff0 100644
--- a/dnn/src/armv7/matrix_mul/quint8/strategy.h
+++ b/dnn/src/armv7/matrix_mul/quint8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/matrix_mul/quint8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/relayout/opr_impl.cpp b/dnn/src/armv7/relayout/opr_impl.cpp
index 68a7bc2d..1701dadc 100644
--- a/dnn/src/armv7/relayout/opr_impl.cpp
+++ b/dnn/src/armv7/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/relayout/opr_impl.h b/dnn/src/armv7/relayout/opr_impl.h
index 43f260b1..027f15fe 100644
--- a/dnn/src/armv7/relayout/opr_impl.h
+++ b/dnn/src/armv7/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/rotate/opr_impl.cpp b/dnn/src/armv7/rotate/opr_impl.cpp
index 8114194d..a22a8133 100644
--- a/dnn/src/armv7/rotate/opr_impl.cpp
+++ b/dnn/src/armv7/rotate/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/rotate/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/armv7/rotate/opr_impl.h b/dnn/src/armv7/rotate/opr_impl.h
index 574d68cd..8bccd31e 100644
--- a/dnn/src/armv7/rotate/opr_impl.h
+++ b/dnn/src/armv7/rotate/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/armv7/rotate/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/checksum/opr_impl.cpp b/dnn/src/atlas/checksum/opr_impl.cpp
index a4eb67ed..88d19d4b 100644
--- a/dnn/src/atlas/checksum/opr_impl.cpp
+++ b/dnn/src/atlas/checksum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/checksum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/checksum/opr_impl.h b/dnn/src/atlas/checksum/opr_impl.h
index 1f7c06d4..cd22c393 100644
--- a/dnn/src/atlas/checksum/opr_impl.h
+++ b/dnn/src/atlas/checksum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/checksum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/handle.cpp b/dnn/src/atlas/handle.cpp
index ac881d72..b50187a5 100644
--- a/dnn/src/atlas/handle.cpp
+++ b/dnn/src/atlas/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/handle.h b/dnn/src/atlas/handle.h
index acf24c73..cad6d2ec 100644
--- a/dnn/src/atlas/handle.h
+++ b/dnn/src/atlas/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/megcore/computing_context.cpp b/dnn/src/atlas/megcore/computing_context.cpp
index 7bda2c91..cad6e808 100644
--- a/dnn/src/atlas/megcore/computing_context.cpp
+++ b/dnn/src/atlas/megcore/computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/megcore/atlas_computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/megcore/computing_context.hpp b/dnn/src/atlas/megcore/computing_context.hpp
index 78b49fba..c8ec6bdc 100644
--- a/dnn/src/atlas/megcore/computing_context.hpp
+++ b/dnn/src/atlas/megcore/computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/megcore/computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/megcore/device_context.cpp b/dnn/src/atlas/megcore/device_context.cpp
index 36568f23..f3624923 100644
--- a/dnn/src/atlas/megcore/device_context.cpp
+++ b/dnn/src/atlas/megcore/device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/megcore/device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/megcore/device_context.hpp b/dnn/src/atlas/megcore/device_context.hpp
index 5827e493..a5ac5bd3 100644
--- a/dnn/src/atlas/megcore/device_context.hpp
+++ b/dnn/src/atlas/megcore/device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/megcore/device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/megcore/public_api/computing.cpp b/dnn/src/atlas/megcore/public_api/computing.cpp
index dc56b3b3..4dabe1ae 100644
--- a/dnn/src/atlas/megcore/public_api/computing.cpp
+++ b/dnn/src/atlas/megcore/public_api/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/megcore/public_api/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/utils.cpp b/dnn/src/atlas/utils.cpp
index 3c54bcb4..037ca373 100644
--- a/dnn/src/atlas/utils.cpp
+++ b/dnn/src/atlas/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/atlas/utils.h b/dnn/src/atlas/utils.h
index 739df314..8a80aaac 100644
--- a/dnn/src/atlas/utils.h
+++ b/dnn/src/atlas/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/atlas/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/checksum/checksum.mlu.h b/dnn/src/cambricon/checksum/checksum.mlu.h
index 0db9b259..6da2266a 100644
--- a/dnn/src/cambricon/checksum/checksum.mlu.h
+++ b/dnn/src/cambricon/checksum/checksum.mlu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/checksum/checksum.mlu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/checksum/checksum_kernel_union1.mlu b/dnn/src/cambricon/checksum/checksum_kernel_union1.mlu
index 21d150c2..927b52ba 100644
--- a/dnn/src/cambricon/checksum/checksum_kernel_union1.mlu
+++ b/dnn/src/cambricon/checksum/checksum_kernel_union1.mlu
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/checksum/checksum_kernel_union1.mlu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/checksum/checksum_kernel_union4.mlu b/dnn/src/cambricon/checksum/checksum_kernel_union4.mlu
index 501c8b94..b01a6cc0 100644
--- a/dnn/src/cambricon/checksum/checksum_kernel_union4.mlu
+++ b/dnn/src/cambricon/checksum/checksum_kernel_union4.mlu
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/checksum/checksum_kernel_union4.mlu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/checksum/opr_impl.cpp b/dnn/src/cambricon/checksum/opr_impl.cpp
index 020f5369..ac3a6bbd 100644
--- a/dnn/src/cambricon/checksum/opr_impl.cpp
+++ b/dnn/src/cambricon/checksum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/checksum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/checksum/opr_impl.h b/dnn/src/cambricon/checksum/opr_impl.h
index 226ab12d..de410fbd 100644
--- a/dnn/src/cambricon/checksum/opr_impl.h
+++ b/dnn/src/cambricon/checksum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/checksum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/handle.cpp b/dnn/src/cambricon/handle.cpp
index 3375392d..5cc8b736 100644
--- a/dnn/src/cambricon/handle.cpp
+++ b/dnn/src/cambricon/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/handle.h b/dnn/src/cambricon/handle.h
index a8880821..a57f6661 100644
--- a/dnn/src/cambricon/handle.h
+++ b/dnn/src/cambricon/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/megcore/cambricon_computing_context.cpp b/dnn/src/cambricon/megcore/cambricon_computing_context.cpp
index 377ac3b1..77d49e64 100644
--- a/dnn/src/cambricon/megcore/cambricon_computing_context.cpp
+++ b/dnn/src/cambricon/megcore/cambricon_computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/megcore/cambricon_computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/megcore/cambricon_computing_context.hpp b/dnn/src/cambricon/megcore/cambricon_computing_context.hpp
index 993bd819..cd08312b 100644
--- a/dnn/src/cambricon/megcore/cambricon_computing_context.hpp
+++ b/dnn/src/cambricon/megcore/cambricon_computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/megcore/cambricon_computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/megcore/cambricon_device_context.cpp b/dnn/src/cambricon/megcore/cambricon_device_context.cpp
index 23d3e1b2..8a2a298e 100644
--- a/dnn/src/cambricon/megcore/cambricon_device_context.cpp
+++ b/dnn/src/cambricon/megcore/cambricon_device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/megcore/cambricon_device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/megcore/cambricon_device_context.hpp b/dnn/src/cambricon/megcore/cambricon_device_context.hpp
index 3b43da57..0e55b085 100644
--- a/dnn/src/cambricon/megcore/cambricon_device_context.hpp
+++ b/dnn/src/cambricon/megcore/cambricon_device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/megcore/cambricon_device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/megcore/public_api/computing.cpp b/dnn/src/cambricon/megcore/public_api/computing.cpp
index 1701e3f4..363ebb72 100644
--- a/dnn/src/cambricon/megcore/public_api/computing.cpp
+++ b/dnn/src/cambricon/megcore/public_api/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/megcore/public_api/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/utils.cpp b/dnn/src/cambricon/utils.cpp
index 9d2fdc61..02c6d3a5 100644
--- a/dnn/src/cambricon/utils.cpp
+++ b/dnn/src/cambricon/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/utils.h b/dnn/src/cambricon/utils.h
index 2de6e35c..1e3f5804 100644
--- a/dnn/src/cambricon/utils.h
+++ b/dnn/src/cambricon/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cambricon/utils.mlu.h b/dnn/src/cambricon/utils.mlu.h
index db499b2d..1355c65b 100644
--- a/dnn/src/cambricon/utils.mlu.h
+++ b/dnn/src/cambricon/utils.mlu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cambricon/utils.mlu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/adaptive_pooling.cpp b/dnn/src/common/adaptive_pooling.cpp
index 56bcb3a1..3f028909 100644
--- a/dnn/src/common/adaptive_pooling.cpp
+++ b/dnn/src/common/adaptive_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/adaptive_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/add_update.cpp b/dnn/src/common/add_update.cpp
index d7fc6efc..b0eb7b3d 100644
--- a/dnn/src/common/add_update.cpp
+++ b/dnn/src/common/add_update.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/add_update_helper.h b/dnn/src/common/add_update_helper.h
index 63157b07..0f6af07b 100644
--- a/dnn/src/common/add_update_helper.h
+++ b/dnn/src/common/add_update_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/add_update_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/algo_base.h b/dnn/src/common/algo_base.h
index 39854557..39056f57 100644
--- a/dnn/src/common/algo_base.h
+++ b/dnn/src/common/algo_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/algo_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/algo_chooser.h b/dnn/src/common/algo_chooser.h
index 1215a647..211171dc 100644
--- a/dnn/src/common/algo_chooser.h
+++ b/dnn/src/common/algo_chooser.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/algo_chooser.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/argmxx/base_impl.cpp b/dnn/src/common/argmxx/base_impl.cpp
index 8f41fc02..11ca35ab 100644
--- a/dnn/src/common/argmxx/base_impl.cpp
+++ b/dnn/src/common/argmxx/base_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/argmxx/base_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/argmxx_helper.h b/dnn/src/common/argmxx_helper.h
index a59e26fc..64e7cc35 100644
--- a/dnn/src/common/argmxx_helper.h
+++ b/dnn/src/common/argmxx_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/argmxx_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/argsort.cpp b/dnn/src/common/argsort.cpp
index 5f135484..5ad5c7e6 100644
--- a/dnn/src/common/argsort.cpp
+++ b/dnn/src/common/argsort.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/argsort.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/asm_common_defs.h b/dnn/src/common/asm_common_defs.h
index f6c76647..d8557116 100644
--- a/dnn/src/common/asm_common_defs.h
+++ b/dnn/src/common/asm_common_defs.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/asm_common_defs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/basic_types.cpp b/dnn/src/common/basic_types.cpp
index dce7b820..48b4ecc1 100644
--- a/dnn/src/common/basic_types.cpp
+++ b/dnn/src/common/basic_types.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/basic_types.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/batch_conv_bias.cpp b/dnn/src/common/batch_conv_bias.cpp
index 485fd3ca..b3ecb8c0 100644
--- a/dnn/src/common/batch_conv_bias.cpp
+++ b/dnn/src/common/batch_conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/batch_conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/batch_normalization.cpp b/dnn/src/common/batch_normalization.cpp
index b1f049f7..55a25f11 100644
--- a/dnn/src/common/batch_normalization.cpp
+++ b/dnn/src/common/batch_normalization.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/batch_normalization.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/batched_matrix_mul.cpp b/dnn/src/common/batched_matrix_mul.cpp
index d1093742..cc734ef1 100644
--- a/dnn/src/common/batched_matrix_mul.cpp
+++ b/dnn/src/common/batched_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/batched_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/checksum.cpp b/dnn/src/common/checksum.cpp
index 7a80403f..76123e43 100644
--- a/dnn/src/common/checksum.cpp
+++ b/dnn/src/common/checksum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/checksum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/concat_split.cpp b/dnn/src/common/concat_split.cpp
index cea107c1..713d6e28 100644
--- a/dnn/src/common/concat_split.cpp
+++ b/dnn/src/common/concat_split.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/concat_split.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cond_take/opr_impl.cpp b/dnn/src/common/cond_take/opr_impl.cpp
index 3d5e8c43..dfa744fd 100644
--- a/dnn/src/common/cond_take/opr_impl.cpp
+++ b/dnn/src/common/cond_take/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cond_take/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cond_take/predicate.cuh b/dnn/src/common/cond_take/predicate.cuh
index a00aa476..c415b9a4 100644
--- a/dnn/src/common/cond_take/predicate.cuh
+++ b/dnn/src/common/cond_take/predicate.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cond_take/predicate.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/conv_bias.cpp b/dnn/src/common/conv_bias.cpp
index 7b66b502..b23f1781 100644
--- a/dnn/src/common/conv_bias.cpp
+++ b/dnn/src/common/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/conv_bias.h b/dnn/src/common/conv_bias.h
index 52d18daf..fc9da4c1 100644
--- a/dnn/src/common/conv_bias.h
+++ b/dnn/src/common/conv_bias.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/conv_bias.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/conv_pooling.cpp b/dnn/src/common/conv_pooling.cpp
index ce2a3985..92a12667 100644
--- a/dnn/src/common/conv_pooling.cpp
+++ b/dnn/src/common/conv_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/conv_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/convolution.cpp b/dnn/src/common/convolution.cpp
index a30867ff..e2c7aa91 100644
--- a/dnn/src/common/convolution.cpp
+++ b/dnn/src/common/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/convolution3d.cpp b/dnn/src/common/convolution3d.cpp
index 09850557..223d69ad 100644
--- a/dnn/src/common/convolution3d.cpp
+++ b/dnn/src/common/convolution3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/convolution3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cpuinfo_arch_vendor.cpp b/dnn/src/common/cpuinfo_arch_vendor.cpp
index 00916e7d..a226db91 100644
--- a/dnn/src/common/cpuinfo_arch_vendor.cpp
+++ b/dnn/src/common/cpuinfo_arch_vendor.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cpuinfo_arch_vendor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cpuinfo_arch_vendor.h b/dnn/src/common/cpuinfo_arch_vendor.h
index efe70182..b2f5482c 100644
--- a/dnn/src/common/cpuinfo_arch_vendor.h
+++ b/dnn/src/common/cpuinfo_arch_vendor.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cpuinfo_arch_vendor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cumsum.cpp b/dnn/src/common/cumsum.cpp
index 5c87e811..bb29b7f9 100644
--- a/dnn/src/common/cumsum.cpp
+++ b/dnn/src/common/cumsum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cumsum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/aligned_allocator.h b/dnn/src/common/cv/aligned_allocator.h
index 6fc42659..d68462e3 100644
--- a/dnn/src/common/cv/aligned_allocator.h
+++ b/dnn/src/common/cv/aligned_allocator.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cv/aligned_allocator.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/bordermode-inl.h b/dnn/src/common/cv/bordermode-inl.h
index c63e7771..69a0bafd 100644
--- a/dnn/src/common/cv/bordermode-inl.h
+++ b/dnn/src/common/cv/bordermode-inl.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/common.h b/dnn/src/common/cv/common.h
index 8deb702c..d695ae7f 100644
--- a/dnn/src/common/cv/common.h
+++ b/dnn/src/common/cv/common.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/cvt_color.h b/dnn/src/common/cv/cvt_color.h
index 06bd04cd..d6d88ba8 100644
--- a/dnn/src/common/cv/cvt_color.h
+++ b/dnn/src/common/cv/cvt_color.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cv/cvt_color.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/enums.h b/dnn/src/common/cv/enums.h
index 498385b3..dc9696fe 100644
--- a/dnn/src/common/cv/enums.h
+++ b/dnn/src/common/cv/enums.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cv/enums.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/filter.cpp b/dnn/src/common/cv/filter.cpp
index 810010b3..add96823 100644
--- a/dnn/src/common/cv/filter.cpp
+++ b/dnn/src/common/cv/filter.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/filter.h b/dnn/src/common/cv/filter.h
index e71f7e54..02902098 100644
--- a/dnn/src/common/cv/filter.h
+++ b/dnn/src/common/cv/filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/helper.h b/dnn/src/common/cv/helper.h
index f7069e1e..cd1af717 100644
--- a/dnn/src/common/cv/helper.h
+++ b/dnn/src/common/cv/helper.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/interp_helper.cpp b/dnn/src/common/cv/interp_helper.cpp
index 91f8d2ec..ae0a408e 100644
--- a/dnn/src/common/cv/interp_helper.cpp
+++ b/dnn/src/common/cv/interp_helper.cpp
@@ -45,7 +45,7 @@
  * ---------------------------------------------------------------------------
  * \file dnn/src/common/cv/interp_helper.cpp
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/interp_helper.h b/dnn/src/common/cv/interp_helper.h
index 9f9dcd85..7d64c11c 100644
--- a/dnn/src/common/cv/interp_helper.h
+++ b/dnn/src/common/cv/interp_helper.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/linalg.h b/dnn/src/common/cv/linalg.h
index 148b8611..b7d63fce 100644
--- a/dnn/src/common/cv/linalg.h
+++ b/dnn/src/common/cv/linalg.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cv/linalg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cv/mat.cpp b/dnn/src/common/cv/mat.cpp
index 899c1d0b..48237e47 100644
--- a/dnn/src/common/cv/mat.cpp
+++ b/dnn/src/common/cv/mat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cv/mat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/cvt_color.cpp b/dnn/src/common/cvt_color.cpp
index 8f35677e..1b09651e 100644
--- a/dnn/src/common/cvt_color.cpp
+++ b/dnn/src/common/cvt_color.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/cvt_color.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/dct.cpp b/dnn/src/common/dct.cpp
index 8441115b..7d726549 100644
--- a/dnn/src/common/dct.cpp
+++ b/dnn/src/common/dct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/dct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/deformable_conv.cpp b/dnn/src/common/deformable_conv.cpp
index d68dff88..87052b1c 100644
--- a/dnn/src/common/deformable_conv.cpp
+++ b/dnn/src/common/deformable_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/deformable_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/deformable_ps_roi_pooling.cpp b/dnn/src/common/deformable_ps_roi_pooling.cpp
index 4107ee64..f61fdf00 100644
--- a/dnn/src/common/deformable_ps_roi_pooling.cpp
+++ b/dnn/src/common/deformable_ps_roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/deformable_ps_roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/dot.cpp b/dnn/src/common/dot.cpp
index 993d50c9..14faf5b5 100644
--- a/dnn/src/common/dot.cpp
+++ b/dnn/src/common/dot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/dot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/dtype.cpp b/dnn/src/common/dtype.cpp
index e0d0860f..a82d4a6b 100644
--- a/dnn/src/common/dtype.cpp
+++ b/dnn/src/common/dtype.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/dtype.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/erfinv.h b/dnn/src/common/elemwise/erfinv.h
index 2429014c..faafba29 100644
--- a/dnn/src/common/elemwise/erfinv.h
+++ b/dnn/src/common/elemwise/erfinv.h
@@ -28,7 +28,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/kern_defs.cuh b/dnn/src/common/elemwise/kern_defs.cuh
index e5906411..5c4f859a 100644
--- a/dnn/src/common/elemwise/kern_defs.cuh
+++ b/dnn/src/common/elemwise/kern_defs.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/kern_defs.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/opr_impl.cpp b/dnn/src/common/elemwise/opr_impl.cpp
index 0881934b..7370593e 100644
--- a/dnn/src/common/elemwise/opr_impl.cpp
+++ b/dnn/src/common/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/opr_impl_body.inl b/dnn/src/common/elemwise/opr_impl_body.inl
index 4ea99efe..1eb1a945 100644
--- a/dnn/src/common/elemwise/opr_impl_body.inl
+++ b/dnn/src/common/elemwise/opr_impl_body.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/opr_impl_body.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/opr_impl_class_def.inl b/dnn/src/common/elemwise/opr_impl_class_def.inl
index c7d60ee2..b158be22 100644
--- a/dnn/src/common/elemwise/opr_impl_class_def.inl
+++ b/dnn/src/common/elemwise/opr_impl_class_def.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/opr_impl_class_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/opr_impl_helper.cpp b/dnn/src/common/elemwise/opr_impl_helper.cpp
index bb4ca343..6fbcebdd 100644
--- a/dnn/src/common/elemwise/opr_impl_helper.cpp
+++ b/dnn/src/common/elemwise/opr_impl_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/opr_impl_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise/opr_impl_helper.h b/dnn/src/common/elemwise/opr_impl_helper.h
index e3e47495..892a10f0 100644
--- a/dnn/src/common/elemwise/opr_impl_helper.h
+++ b/dnn/src/common/elemwise/opr_impl_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise/opr_impl_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_helper.cpp b/dnn/src/common/elemwise_helper.cpp
index 6e57d2bb..62200430 100644
--- a/dnn/src/common/elemwise_helper.cpp
+++ b/dnn/src/common/elemwise_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_helper.cuh b/dnn/src/common/elemwise_helper.cuh
index 3b1a5668..529e851d 100644
--- a/dnn/src/common/elemwise_helper.cuh
+++ b/dnn/src/common/elemwise_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_multi_type/kern_defs.cuh b/dnn/src/common/elemwise_multi_type/kern_defs.cuh
index 5527c602..de901e1f 100644
--- a/dnn/src/common/elemwise_multi_type/kern_defs.cuh
+++ b/dnn/src/common/elemwise_multi_type/kern_defs.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_multi_type/kern_defs.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_multi_type/opr_impl.cpp b/dnn/src/common/elemwise_multi_type/opr_impl.cpp
index edc749d8..ef634e1b 100644
--- a/dnn/src/common/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/common/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_multi_type/opr_impl_helper.cpp b/dnn/src/common/elemwise_multi_type/opr_impl_helper.cpp
index 34e44f1b..38cfe8a3 100644
--- a/dnn/src/common/elemwise_multi_type/opr_impl_helper.cpp
+++ b/dnn/src/common/elemwise_multi_type/opr_impl_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_multi_type/opr_impl_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/elemwise_multi_type/opr_impl_helper.h b/dnn/src/common/elemwise_multi_type/opr_impl_helper.h
index 8646175a..c0196908 100644
--- a/dnn/src/common/elemwise_multi_type/opr_impl_helper.h
+++ b/dnn/src/common/elemwise_multi_type/opr_impl_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/elemwise_multi_type/opr_impl_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/eye.cpp b/dnn/src/common/eye.cpp
index fcec541f..f0ba6f92 100644
--- a/dnn/src/common/eye.cpp
+++ b/dnn/src/common/eye.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/eye.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/fake_quant.cpp b/dnn/src/common/fake_quant.cpp
index 96700a6f..2334dab4 100644
--- a/dnn/src/common/fake_quant.cpp
+++ b/dnn/src/common/fake_quant.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/fakequant.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/flag_warn.cpp b/dnn/src/common/flag_warn.cpp
index 06e81b3e..01a8745e 100644
--- a/dnn/src/common/flag_warn.cpp
+++ b/dnn/src/common/flag_warn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/flag_warn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/flip.cpp b/dnn/src/common/flip.cpp
index c9e08c7e..06e29b14 100644
--- a/dnn/src/common/flip.cpp
+++ b/dnn/src/common/flip.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/flip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/gaussian_blur.cpp b/dnn/src/common/gaussian_blur.cpp
index 6aa1ce35..ef742376 100644
--- a/dnn/src/common/gaussian_blur.cpp
+++ b/dnn/src/common/gaussian_blur.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/gaussian_blur.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/gaussian_blur_helper.h b/dnn/src/common/gaussian_blur_helper.h
index 06e63e68..72681a92 100644
--- a/dnn/src/common/gaussian_blur_helper.h
+++ b/dnn/src/common/gaussian_blur_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/gaussian_blur_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/group_local.cpp b/dnn/src/common/group_local.cpp
index ca668c20..ffcb3923 100644
--- a/dnn/src/common/group_local.cpp
+++ b/dnn/src/common/group_local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/group_local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/handle.cpp b/dnn/src/common/handle.cpp
index 4aafabb0..3f6e3154 100644
--- a/dnn/src/common/handle.cpp
+++ b/dnn/src/common/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/handle_impl.h b/dnn/src/common/handle_impl.h
index 77227b6c..c3189311 100644
--- a/dnn/src/common/handle_impl.h
+++ b/dnn/src/common/handle_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/handle_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/hash_ct.h b/dnn/src/common/hash_ct.h
index 14f5909d..b8d2ca03 100644
--- a/dnn/src/common/hash_ct.h
+++ b/dnn/src/common/hash_ct.h
@@ -26,7 +26,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/images2neibs.cpp b/dnn/src/common/images2neibs.cpp
index c80ab893..23670942 100644
--- a/dnn/src/common/images2neibs.cpp
+++ b/dnn/src/common/images2neibs.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/images2neibs.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/indexing_multi_axis_vec.cpp b/dnn/src/common/indexing_multi_axis_vec.cpp
index 31173241..e23aec04 100644
--- a/dnn/src/common/indexing_multi_axis_vec.cpp
+++ b/dnn/src/common/indexing_multi_axis_vec.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/indexing_multi_axis_vec.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/indexing_multi_axis_vec_kdef.h b/dnn/src/common/indexing_multi_axis_vec_kdef.h
index ddf5c960..916ef2e7 100644
--- a/dnn/src/common/indexing_multi_axis_vec_kdef.h
+++ b/dnn/src/common/indexing_multi_axis_vec_kdef.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/indexing_multi_axis_vec_kdef.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/indexing_one_hot.cpp b/dnn/src/common/indexing_one_hot.cpp
index 78a3b7f9..bb7f3572 100644
--- a/dnn/src/common/indexing_one_hot.cpp
+++ b/dnn/src/common/indexing_one_hot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/indexing_one_hot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/linspace.cpp b/dnn/src/common/linspace.cpp
index d716237d..ceae94fa 100644
--- a/dnn/src/common/linspace.cpp
+++ b/dnn/src/common/linspace.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/linspace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/local/local_decl.inl b/dnn/src/common/local/local_decl.inl
index 71a0e86d..5682eec6 100644
--- a/dnn/src/common/local/local_decl.inl
+++ b/dnn/src/common/local/local_decl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/local/local_decl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/local/local_def.inl b/dnn/src/common/local/local_def.inl
index 13b8759c..0f912194 100644
--- a/dnn/src/common/local/local_def.inl
+++ b/dnn/src/common/local/local_def.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/local/local_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/local/opr_impl.cpp b/dnn/src/common/local/opr_impl.cpp
index ab44be3c..579e7254 100644
--- a/dnn/src/common/local/opr_impl.cpp
+++ b/dnn/src/common/local/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/local/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/local_share/opr_impl.cpp b/dnn/src/common/local_share/opr_impl.cpp
index d4851e3f..8616ba78 100644
--- a/dnn/src/common/local_share/opr_impl.cpp
+++ b/dnn/src/common/local_share/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/local_share/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/lrn.cpp b/dnn/src/common/lrn.cpp
index c8d9d286..1745311a 100644
--- a/dnn/src/common/lrn.cpp
+++ b/dnn/src/common/lrn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/lrn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/macro_helper.h b/dnn/src/common/macro_helper.h
index 5c356c79..abd75181 100644
--- a/dnn/src/common/macro_helper.h
+++ b/dnn/src/common/macro_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/macro_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/macro_helper_epilogue.h b/dnn/src/common/macro_helper_epilogue.h
index df52d8d0..69aee23f 100644
--- a/dnn/src/common/macro_helper_epilogue.h
+++ b/dnn/src/common/macro_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/macro_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/mask_conv.cpp b/dnn/src/common/mask_conv.cpp
index ee2f1ff8..289cee6b 100644
--- a/dnn/src/common/mask_conv.cpp
+++ b/dnn/src/common/mask_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/mask_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/matrix_inverse.cpp b/dnn/src/common/matrix_inverse.cpp
index d90a25b2..4d48b5bd 100644
--- a/dnn/src/common/matrix_inverse.cpp
+++ b/dnn/src/common/matrix_inverse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/matrix_inverse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/matrix_mul.cpp b/dnn/src/common/matrix_mul.cpp
index c765e10e..1cd2a9ea 100644
--- a/dnn/src/common/matrix_mul.cpp
+++ b/dnn/src/common/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/max_tensor_diff.cpp b/dnn/src/common/max_tensor_diff.cpp
index 47e765fa..96a374cf 100644
--- a/dnn/src/common/max_tensor_diff.cpp
+++ b/dnn/src/common/max_tensor_diff.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/max_tensor_diff.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/common/computing_context.cpp b/dnn/src/common/megcore/common/computing_context.cpp
index b178291b..f1d3a76b 100644
--- a/dnn/src/common/megcore/common/computing_context.cpp
+++ b/dnn/src/common/megcore/common/computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/common/computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/common/computing_context.hpp b/dnn/src/common/megcore/common/computing_context.hpp
index cab1e52e..62ffc36d 100644
--- a/dnn/src/common/megcore/common/computing_context.hpp
+++ b/dnn/src/common/megcore/common/computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/common/computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/common/device_context.cpp b/dnn/src/common/megcore/common/device_context.cpp
index a77b0be7..adb0c177 100644
--- a/dnn/src/common/megcore/common/device_context.cpp
+++ b/dnn/src/common/megcore/common/device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/common/device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/common/device_context.hpp b/dnn/src/common/megcore/common/device_context.hpp
index c12f59c3..f39b9a79 100644
--- a/dnn/src/common/megcore/common/device_context.hpp
+++ b/dnn/src/common/megcore/common/device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/common/device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/cpu/api.cpp b/dnn/src/common/megcore/cpu/api.cpp
index 5cc92e45..cc814e33 100644
--- a/dnn/src/common/megcore/cpu/api.cpp
+++ b/dnn/src/common/megcore/cpu/api.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/cpu/api.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/cpu/default_computing_context.cpp b/dnn/src/common/megcore/cpu/default_computing_context.cpp
index b49fc167..65d35746 100644
--- a/dnn/src/common/megcore/cpu/default_computing_context.cpp
+++ b/dnn/src/common/megcore/cpu/default_computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/cpu/default_computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/cpu/default_computing_context.hpp b/dnn/src/common/megcore/cpu/default_computing_context.hpp
index 9a3e507e..7f2bc87f 100644
--- a/dnn/src/common/megcore/cpu/default_computing_context.hpp
+++ b/dnn/src/common/megcore/cpu/default_computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/cpu/default_computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/cpu/default_device_context.cpp b/dnn/src/common/megcore/cpu/default_device_context.cpp
index b843849b..57d76ef7 100644
--- a/dnn/src/common/megcore/cpu/default_device_context.cpp
+++ b/dnn/src/common/megcore/cpu/default_device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/cpu/default_device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/cpu/default_device_context.hpp b/dnn/src/common/megcore/cpu/default_device_context.hpp
index e425ec33..bae46f47 100644
--- a/dnn/src/common/megcore/cpu/default_device_context.hpp
+++ b/dnn/src/common/megcore/cpu/default_device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/cpu/default_device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/public_api/computing.cpp b/dnn/src/common/megcore/public_api/computing.cpp
index 4ff00170..b00e9072 100644
--- a/dnn/src/common/megcore/public_api/computing.cpp
+++ b/dnn/src/common/megcore/public_api/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/public_api/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/public_api/computing.hpp b/dnn/src/common/megcore/public_api/computing.hpp
index a264723c..a90ef66d 100644
--- a/dnn/src/common/megcore/public_api/computing.hpp
+++ b/dnn/src/common/megcore/public_api/computing.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/public_api/computing.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/public_api/device.cpp b/dnn/src/common/megcore/public_api/device.cpp
index 7dbe0068..77b37447 100644
--- a/dnn/src/common/megcore/public_api/device.cpp
+++ b/dnn/src/common/megcore/public_api/device.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/public_api/device.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/public_api/device.hpp b/dnn/src/common/megcore/public_api/device.hpp
index 61fb5a5a..400d4e6b 100644
--- a/dnn/src/common/megcore/public_api/device.hpp
+++ b/dnn/src/common/megcore/public_api/device.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/public_api/device.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/megcore/public_api/misc.cpp b/dnn/src/common/megcore/public_api/misc.cpp
index 50da099d..9c199cc8 100644
--- a/dnn/src/common/megcore/public_api/misc.cpp
+++ b/dnn/src/common/megcore/public_api/misc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/megcore/public_api/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/mesh_indexing.cpp b/dnn/src/common/mesh_indexing.cpp
index 6c1cd73e..614fc7e2 100644
--- a/dnn/src/common/mesh_indexing.cpp
+++ b/dnn/src/common/mesh_indexing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/mesh_indexing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/metahelper.h b/dnn/src/common/metahelper.h
index 536d5046..aacdec9d 100644
--- a/dnn/src/common/metahelper.h
+++ b/dnn/src/common/metahelper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/metahelper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/nchw_nchwxx_valid.cpp b/dnn/src/common/nchw_nchwxx_valid.cpp
index 56113152..0df3ec85 100644
--- a/dnn/src/common/nchw_nchwxx_valid.cpp
+++ b/dnn/src/common/nchw_nchwxx_valid.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/nchw_nchwxx_valid.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/nchw_nchwxx_valid.h b/dnn/src/common/nchw_nchwxx_valid.h
index 7c4621bc..4402dc87 100644
--- a/dnn/src/common/nchw_nchwxx_valid.h
+++ b/dnn/src/common/nchw_nchwxx_valid.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/nchw_nchwxx_valid.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/opr_delegate.cpp b/dnn/src/common/opr_delegate.cpp
index 69578fe7..140e0112 100644
--- a/dnn/src/common/opr_delegate.cpp
+++ b/dnn/src/common/opr_delegate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/opr_delegate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/opr_delegate.h b/dnn/src/common/opr_delegate.h
index 93adb26f..0be9f4d4 100644
--- a/dnn/src/common/opr_delegate.h
+++ b/dnn/src/common/opr_delegate.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/opr_delegate.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/param_pack.cpp b/dnn/src/common/param_pack.cpp
index 2f40d701..407981ae 100644
--- a/dnn/src/common/param_pack.cpp
+++ b/dnn/src/common/param_pack.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/param_pack.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/pooling.cpp b/dnn/src/common/pooling.cpp
index b875746b..c2cd9531 100644
--- a/dnn/src/common/pooling.cpp
+++ b/dnn/src/common/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_decl.inl b/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_decl.inl
index cd0743ea..d50fa794 100644
--- a/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_decl.inl
+++ b/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_decl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_decl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_def.inl b/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_def.inl
index e608e161..4ed1b09d 100644
--- a/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_def.inl
+++ b/dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_def.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/common/pooling/do_max_pooling_3x3_s2x2_float_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/postprocess.h b/dnn/src/common/postprocess.h
index 6438a4d6..3e0ca758 100644
--- a/dnn/src/common/postprocess.h
+++ b/dnn/src/common/postprocess.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/postprocess.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/postprocess_helper.h b/dnn/src/common/postprocess_helper.h
index 70725083..3aef6be8 100644
--- a/dnn/src/common/postprocess_helper.h
+++ b/dnn/src/common/postprocess_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/postprocess_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/powc.cpp b/dnn/src/common/powc.cpp
index a698da2a..06f627cd 100644
--- a/dnn/src/common/powc.cpp
+++ b/dnn/src/common/powc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/powc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/reduce.cpp b/dnn/src/common/reduce.cpp
index 9b5e6d5b..f6311fd6 100644
--- a/dnn/src/common/reduce.cpp
+++ b/dnn/src/common/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/reduce_helper.cpp b/dnn/src/common/reduce_helper.cpp
index 7d2618f6..bfecda1e 100644
--- a/dnn/src/common/reduce_helper.cpp
+++ b/dnn/src/common/reduce_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/reduce_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/reduce_helper.h b/dnn/src/common/reduce_helper.h
index 75f398bf..c7cd6890 100644
--- a/dnn/src/common/reduce_helper.h
+++ b/dnn/src/common/reduce_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/reduce_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/relayout.cpp b/dnn/src/common/relayout.cpp
index 2e2d8df7..7e03eb2a 100644
--- a/dnn/src/common/relayout.cpp
+++ b/dnn/src/common/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/relayout_format.cpp b/dnn/src/common/relayout_format.cpp
index e30ba58f..b7602d89 100644
--- a/dnn/src/common/relayout_format.cpp
+++ b/dnn/src/common/relayout_format.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/relayout_format.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/relayout_helper.h b/dnn/src/common/relayout_helper.h
index f00b7bae..7ff34924 100644
--- a/dnn/src/common/relayout_helper.h
+++ b/dnn/src/common/relayout_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/relayout_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/remap.cpp b/dnn/src/common/remap.cpp
index 6cf3e57c..fdb0f704 100644
--- a/dnn/src/common/remap.cpp
+++ b/dnn/src/common/remap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/remap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/resize.cpp b/dnn/src/common/resize.cpp
index 41d28896..18f20f2d 100644
--- a/dnn/src/common/resize.cpp
+++ b/dnn/src/common/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/rng.cpp b/dnn/src/common/rng.cpp
index 83a0b2b1..eba6a9d2 100644
--- a/dnn/src/common/rng.cpp
+++ b/dnn/src/common/rng.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/rng.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/roi_align.cpp b/dnn/src/common/roi_align.cpp
index ce62f2b0..3f0bbd49 100644
--- a/dnn/src/common/roi_align.cpp
+++ b/dnn/src/common/roi_align.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/roi_align.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/roi_align_helper.h b/dnn/src/common/roi_align_helper.h
index 00b60697..200601e5 100644
--- a/dnn/src/common/roi_align_helper.h
+++ b/dnn/src/common/roi_align_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/roi_align_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/roi_copy.cpp b/dnn/src/common/roi_copy.cpp
index 9f5eb25e..6cbcee9e 100644
--- a/dnn/src/common/roi_copy.cpp
+++ b/dnn/src/common/roi_copy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/roi_copy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/roi_pooling.cpp b/dnn/src/common/roi_pooling.cpp
index 876d5349..f116824b 100644
--- a/dnn/src/common/roi_pooling.cpp
+++ b/dnn/src/common/roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/roi_pooling_helper.h b/dnn/src/common/roi_pooling_helper.h
index 6fda0592..967c6dd8 100644
--- a/dnn/src/common/roi_pooling_helper.h
+++ b/dnn/src/common/roi_pooling_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/roi_pooling_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/rotate.cpp b/dnn/src/common/rotate.cpp
index 69db12e5..02528742 100644
--- a/dnn/src/common/rotate.cpp
+++ b/dnn/src/common/rotate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/rotate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/rounding_converter.cuh b/dnn/src/common/rounding_converter.cuh
index ca17d14c..0f3b6194 100644
--- a/dnn/src/common/rounding_converter.cuh
+++ b/dnn/src/common/rounding_converter.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/rounding_converter.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/separableConv.cpp b/dnn/src/common/separableConv.cpp
index a82a5828..313f4c59 100644
--- a/dnn/src/common/separableConv.cpp
+++ b/dnn/src/common/separableConv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/separableConv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/separableFilter.cpp b/dnn/src/common/separableFilter.cpp
index d0c29461..1ca152c8 100644
--- a/dnn/src/common/separableFilter.cpp
+++ b/dnn/src/common/separableFilter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/separableFilter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/simd_macro/epilogue.h b/dnn/src/common/simd_macro/epilogue.h
index f6559b5c..7a30f045 100644
--- a/dnn/src/common/simd_macro/epilogue.h
+++ b/dnn/src/common/simd_macro/epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/simd_macro/epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/small_vector.cpp b/dnn/src/common/small_vector.cpp
index 67f564fc..3377294c 100644
--- a/dnn/src/common/small_vector.cpp
+++ b/dnn/src/common/small_vector.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/small_vector.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/svd.cpp b/dnn/src/common/svd.cpp
index 367374ec..bc6f86dc 100644
--- a/dnn/src/common/svd.cpp
+++ b/dnn/src/common/svd.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/svd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tensor_format.cpp b/dnn/src/common/tensor_format.cpp
index 71c89838..3661884d 100644
--- a/dnn/src/common/tensor_format.cpp
+++ b/dnn/src/common/tensor_format.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tensor_format.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tensor_iter.cpp b/dnn/src/common/tensor_iter.cpp
index 46ccb57c..0fa27db3 100644
--- a/dnn/src/common/tensor_iter.cpp
+++ b/dnn/src/common/tensor_iter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tensor_iter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tensor_remap.cpp b/dnn/src/common/tensor_remap.cpp
index eabbd6ac..06cc6c64 100644
--- a/dnn/src/common/tensor_remap.cpp
+++ b/dnn/src/common/tensor_remap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tensor_remap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tile_repeat.cpp b/dnn/src/common/tile_repeat.cpp
index 7eeafa26..120b3d91 100644
--- a/dnn/src/common/tile_repeat.cpp
+++ b/dnn/src/common/tile_repeat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tile_repeat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tile_repeat_helper.cpp b/dnn/src/common/tile_repeat_helper.cpp
index 62c7d366..27bca9fe 100644
--- a/dnn/src/common/tile_repeat_helper.cpp
+++ b/dnn/src/common/tile_repeat_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tile_repeat_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tile_repeat_helper.h b/dnn/src/common/tile_repeat_helper.h
index 834c8617..10396955 100644
--- a/dnn/src/common/tile_repeat_helper.h
+++ b/dnn/src/common/tile_repeat_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tile_repeat_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/topk.cpp b/dnn/src/common/topk.cpp
index 40363822..ecf0a7ae 100644
--- a/dnn/src/common/topk.cpp
+++ b/dnn/src/common/topk.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/topk.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/tqt.cpp b/dnn/src/common/tqt.cpp
index 44199df6..757bfa24 100644
--- a/dnn/src/common/tqt.cpp
+++ b/dnn/src/common/tqt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/tqt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/transpose.cpp b/dnn/src/common/transpose.cpp
index dd25782b..e9d5abc7 100644
--- a/dnn/src/common/transpose.cpp
+++ b/dnn/src/common/transpose.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/transpose.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/type_cvt.cpp b/dnn/src/common/type_cvt.cpp
index 5a9cf995..b287063d 100644
--- a/dnn/src/common/type_cvt.cpp
+++ b/dnn/src/common/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/unroll_macro.h b/dnn/src/common/unroll_macro.h
index 38fbd465..2711827e 100644
--- a/dnn/src/common/unroll_macro.h
+++ b/dnn/src/common/unroll_macro.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/unroll_macro.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/utils.cpp b/dnn/src/common/utils.cpp
index 2dd2ca70..00c48349 100644
--- a/dnn/src/common/utils.cpp
+++ b/dnn/src/common/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/utils.cuh b/dnn/src/common/utils.cuh
index d4cee62a..9408d2bf 100644
--- a/dnn/src/common/utils.cuh
+++ b/dnn/src/common/utils.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/common/utils.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/utils.h b/dnn/src/common/utils.h
index 7da91606..5a6a7454 100644
--- a/dnn/src/common/utils.h
+++ b/dnn/src/common/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/version.cpp b/dnn/src/common/version.cpp
index 5baea187..c1fc2164 100644
--- a/dnn/src/common/version.cpp
+++ b/dnn/src/common/version.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/version.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/version_symbol.h b/dnn/src/common/version_symbol.h
index 2d6577b8..714cfada 100644
--- a/dnn/src/common/version_symbol.h
+++ b/dnn/src/common/version_symbol.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/version_symbol.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_affine.cpp b/dnn/src/common/warp_affine.cpp
index 475bd874..6aa9b5bd 100644
--- a/dnn/src/common/warp_affine.cpp
+++ b/dnn/src/common/warp_affine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/warp_affine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_common.cpp b/dnn/src/common/warp_common.cpp
index 93ad1110..40ff6db1 100644
--- a/dnn/src/common/warp_common.cpp
+++ b/dnn/src/common/warp_common.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/warp_common.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_common.h b/dnn/src/common/warp_common.h
index f381a0f1..989c5ff7 100644
--- a/dnn/src/common/warp_common.h
+++ b/dnn/src/common/warp_common.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_perspective.cpp b/dnn/src/common/warp_perspective.cpp
index 5c96930f..9ec8cc63 100644
--- a/dnn/src/common/warp_perspective.cpp
+++ b/dnn/src/common/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_perspective_helper.cpp b/dnn/src/common/warp_perspective_helper.cpp
index 7ddb0be1..658ac2d6 100644
--- a/dnn/src/common/warp_perspective_helper.cpp
+++ b/dnn/src/common/warp_perspective_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/warp_perspective_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/warp_perspective_helper.h b/dnn/src/common/warp_perspective_helper.h
index 70f22be7..47678be7 100644
--- a/dnn/src/common/warp_perspective_helper.h
+++ b/dnn/src/common/warp_perspective_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/warp_perspective_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/winograd/winograd_generator.cpp b/dnn/src/common/winograd/winograd_generator.cpp
index b3c28afc..a05f9b22 100644
--- a/dnn/src/common/winograd/winograd_generator.cpp
+++ b/dnn/src/common/winograd/winograd_generator.cpp
@@ -19,7 +19,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/winograd/winograd_generator.h b/dnn/src/common/winograd/winograd_generator.h
index c70417ed..f986d3c5 100644
--- a/dnn/src/common/winograd/winograd_generator.h
+++ b/dnn/src/common/winograd/winograd_generator.h
@@ -19,7 +19,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/winograd/winograd_helper.cpp b/dnn/src/common/winograd/winograd_helper.cpp
index 0e3cfa5b..beef9151 100644
--- a/dnn/src/common/winograd/winograd_helper.cpp
+++ b/dnn/src/common/winograd/winograd_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/common/winograd/winograd_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/common/winograd/winograd_helper.h b/dnn/src/common/winograd/winograd_helper.h
index 017b70ab..8e111017 100644
--- a/dnn/src/common/winograd/winograd_helper.h
+++ b/dnn/src/common/winograd/winograd_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/common/winograd/winograd_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/adaptive_pooling/opr_impl.cpp b/dnn/src/cuda/adaptive_pooling/opr_impl.cpp
index c9ece2b4..1afc7e83 100644
--- a/dnn/src/cuda/adaptive_pooling/opr_impl.cpp
+++ b/dnn/src/cuda/adaptive_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/adaptive_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/adaptive_pooling/opr_impl.h b/dnn/src/cuda/adaptive_pooling/opr_impl.h
index 5df0538b..e68b1236 100644
--- a/dnn/src/cuda/adaptive_pooling/opr_impl.h
+++ b/dnn/src/cuda/adaptive_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/adaptive_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/add_update/kern.cu b/dnn/src/cuda/add_update/kern.cu
index f4f32b8c..a8183285 100644
--- a/dnn/src/cuda/add_update/kern.cu
+++ b/dnn/src/cuda/add_update/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/add_update/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/add_update/kern.cuh b/dnn/src/cuda/add_update/kern.cuh
index 49bac12b..44ee1a71 100644
--- a/dnn/src/cuda/add_update/kern.cuh
+++ b/dnn/src/cuda/add_update/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/add_update/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/add_update/opr_impl.cpp b/dnn/src/cuda/add_update/opr_impl.cpp
index f3bddbcf..17ea51d1 100644
--- a/dnn/src/cuda/add_update/opr_impl.cpp
+++ b/dnn/src/cuda/add_update/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/add_update/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/add_update/opr_impl.h b/dnn/src/cuda/add_update/opr_impl.h
index 19d737c1..a48a4cb6 100644
--- a/dnn/src/cuda/add_update/opr_impl.h
+++ b/dnn/src/cuda/add_update/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/add_update/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argmxx/argmxx.cu b/dnn/src/cuda/argmxx/argmxx.cu
index 406678fb..112ae525 100644
--- a/dnn/src/cuda/argmxx/argmxx.cu
+++ b/dnn/src/cuda/argmxx/argmxx.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argmxx/argmxx.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argmxx/argmxx.cuh b/dnn/src/cuda/argmxx/argmxx.cuh
index b1787bcf..66a5a179 100644
--- a/dnn/src/cuda/argmxx/argmxx.cuh
+++ b/dnn/src/cuda/argmxx/argmxx.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argmxx/argmxx.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argmxx/opr_impl.cpp b/dnn/src/cuda/argmxx/opr_impl.cpp
index 203e23cf..01d6795c 100644
--- a/dnn/src/cuda/argmxx/opr_impl.cpp
+++ b/dnn/src/cuda/argmxx/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argmxx/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argmxx/opr_impl.h b/dnn/src/cuda/argmxx/opr_impl.h
index 167e740d..b97c5aba 100644
--- a/dnn/src/cuda/argmxx/opr_impl.h
+++ b/dnn/src/cuda/argmxx/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argmxx/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/argsort.cu b/dnn/src/cuda/argsort/argsort.cu
index 9e46c169..631ad160 100644
--- a/dnn/src/cuda/argsort/argsort.cu
+++ b/dnn/src/cuda/argsort/argsort.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/argsort.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/argsort.cuh b/dnn/src/cuda/argsort/argsort.cuh
index d5cc6e12..8814b88e 100644
--- a/dnn/src/cuda/argsort/argsort.cuh
+++ b/dnn/src/cuda/argsort/argsort.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/argsort.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/backward.cu b/dnn/src/cuda/argsort/backward.cu
index b8b3d3fa..66cda244 100644
--- a/dnn/src/cuda/argsort/backward.cu
+++ b/dnn/src/cuda/argsort/backward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/backward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/backward.cuh b/dnn/src/cuda/argsort/backward.cuh
index c42db6b6..3b4daa0a 100644
--- a/dnn/src/cuda/argsort/backward.cuh
+++ b/dnn/src/cuda/argsort/backward.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/backward.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/bitonic_sort.cu b/dnn/src/cuda/argsort/bitonic_sort.cu
index 43dd2a51..598ad02d 100644
--- a/dnn/src/cuda/argsort/bitonic_sort.cu
+++ b/dnn/src/cuda/argsort/bitonic_sort.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/bitonic_sort.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/bitonic_sort.cuh b/dnn/src/cuda/argsort/bitonic_sort.cuh
index bc85bd1f..9f5f3171 100644
--- a/dnn/src/cuda/argsort/bitonic_sort.cuh
+++ b/dnn/src/cuda/argsort/bitonic_sort.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/bitonic_sort.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/opr_impl.cpp b/dnn/src/cuda/argsort/opr_impl.cpp
index 5a56db21..b18e5a4a 100644
--- a/dnn/src/cuda/argsort/opr_impl.cpp
+++ b/dnn/src/cuda/argsort/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/argsort/opr_impl.h b/dnn/src/cuda/argsort/opr_impl.h
index fbd58e5a..82d5a41f 100644
--- a/dnn/src/cuda/argsort/opr_impl.h
+++ b/dnn/src/cuda/argsort/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/argsort/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/algo.cpp b/dnn/src/cuda/batch_conv_bias/algo.cpp
index c829278b..de2f83a8 100644
--- a/dnn/src/cuda/batch_conv_bias/algo.cpp
+++ b/dnn/src/cuda/batch_conv_bias/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/algo.h b/dnn/src/cuda/batch_conv_bias/algo.h
index 1dade319..f846d462 100644
--- a/dnn/src/cuda/batch_conv_bias/algo.h
+++ b/dnn/src/cuda/batch_conv_bias/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/batch_conv_bias.cuh b/dnn/src/cuda/batch_conv_bias/batch_conv_bias.cuh
index d2c3b5da..c434704f 100644
--- a/dnn/src/cuda/batch_conv_bias/batch_conv_bias.cuh
+++ b/dnn/src/cuda/batch_conv_bias/batch_conv_bias.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/batch_conv_bias.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/gemm_int8_nchw4_dp4a.cpp b/dnn/src/cuda/batch_conv_bias/gemm_int8_nchw4_dp4a.cpp
index 11b8cb2c..0f0ab818 100644
--- a/dnn/src/cuda/batch_conv_bias/gemm_int8_nchw4_dp4a.cpp
+++ b/dnn/src/cuda/batch_conv_bias/gemm_int8_nchw4_dp4a.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/gemm_int8_nchw4_dp4a.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/helper.cu b/dnn/src/cuda/batch_conv_bias/helper.cu
index 12890318..849fe1e1 100644
--- a/dnn/src/cuda/batch_conv_bias/helper.cu
+++ b/dnn/src/cuda/batch_conv_bias/helper.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/helper.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/helper.cuh b/dnn/src/cuda/batch_conv_bias/helper.cuh
index 2b245eb2..886a8758 100644
--- a/dnn/src/cuda/batch_conv_bias/helper.cuh
+++ b/dnn/src/cuda/batch_conv_bias/helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp b/dnn/src/cuda/batch_conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
index 3daa220d..6e5c8b3e 100644
--- a/dnn/src/cuda/batch_conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
+++ b/dnn/src/cuda/batch_conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4.cuinl b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4.cuinl
index caae4cdb..0851a134 100644
--- a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4.cuinl
+++ b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4_ldg_128.cuinl b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4_ldg_128.cuinl
index 91b668a0..ca73ce93 100644
--- a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4_ldg_128.cuinl
+++ b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4_ldg_128.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_gemm_ncdiv4hw4_ldg_128.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_implicit_gemm_precomp_ncdiv4hw4.cuinl b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_implicit_gemm_precomp_ncdiv4hw4.cuinl
index 02c97f1d..f3caa756 100644
--- a/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_implicit_gemm_precomp_ncdiv4hw4.cuinl
+++ b/dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_implicit_gemm_precomp_ncdiv4hw4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/int8/batch_conv_bias_int8_implicit_gemm_precomp_ncdiv4hw4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/opr_impl.cpp b/dnn/src/cuda/batch_conv_bias/opr_impl.cpp
index dedc52b9..7a3ccc7e 100644
--- a/dnn/src/cuda/batch_conv_bias/opr_impl.cpp
+++ b/dnn/src/cuda/batch_conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_conv_bias/opr_impl.h b/dnn/src/cuda/batch_conv_bias/opr_impl.h
index 276de278..3ddc0a1f 100644
--- a/dnn/src/cuda/batch_conv_bias/opr_impl.h
+++ b/dnn/src/cuda/batch_conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_normalization/opr_impl.cpp b/dnn/src/cuda/batch_normalization/opr_impl.cpp
index faa054ae..fff77f26 100644
--- a/dnn/src/cuda/batch_normalization/opr_impl.cpp
+++ b/dnn/src/cuda/batch_normalization/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_normalization/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batch_normalization/opr_impl.h b/dnn/src/cuda/batch_normalization/opr_impl.h
index fc6e37ac..c5055623 100644
--- a/dnn/src/cuda/batch_normalization/opr_impl.h
+++ b/dnn/src/cuda/batch_normalization/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batch_normalization/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/algo.cpp b/dnn/src/cuda/batched_matrix_mul/algo.cpp
index 01b7001d..bbe562bd 100644
--- a/dnn/src/cuda/batched_matrix_mul/algo.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/algo.h b/dnn/src/cuda/batched_matrix_mul/algo.h
index 1329a546..8fd34fdf 100644
--- a/dnn/src/cuda/batched_matrix_mul/algo.h
+++ b/dnn/src/cuda/batched_matrix_mul/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/brute_force.cpp b/dnn/src/cuda/batched_matrix_mul/brute_force.cpp
index 3c12ff73..e8c38915 100644
--- a/dnn/src/cuda/batched_matrix_mul/brute_force.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/brute_force.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/brute_force.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/cublas.cpp b/dnn/src/cuda/batched_matrix_mul/cublas.cpp
index 84836e0b..81db2372 100644
--- a/dnn/src/cuda/batched_matrix_mul/cublas.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/cublas.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/cublas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/cublas_lt.cpp b/dnn/src/cuda/batched_matrix_mul/cublas_lt.cpp
index 9d3f9620..3fa9f548 100644
--- a/dnn/src/cuda/batched_matrix_mul/cublas_lt.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/cublas_lt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/cublas_lt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/helper.cu b/dnn/src/cuda/batched_matrix_mul/helper.cu
index 959a7846..3d5e385c 100644
--- a/dnn/src/cuda/batched_matrix_mul/helper.cu
+++ b/dnn/src/cuda/batched_matrix_mul/helper.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/helper.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/helper.cuh b/dnn/src/cuda/batched_matrix_mul/helper.cuh
index a7837770..ea5f1e08 100644
--- a/dnn/src/cuda/batched_matrix_mul/helper.cuh
+++ b/dnn/src/cuda/batched_matrix_mul/helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cpp b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cpp
index 5d466235..c9b57e7a 100644
--- a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/int8x8x32.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cu b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cu
index ea6e80fc..37592871 100644
--- a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cu
+++ b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/int8x8x32.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cuh b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cuh
index 945d0a78..8db89bfe 100644
--- a/dnn/src/cuda/batched_matrix_mul/int8x8x32.cuh
+++ b/dnn/src/cuda/batched_matrix_mul/int8x8x32.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/int8x8x32.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/opr_impl.cpp b/dnn/src/cuda/batched_matrix_mul/opr_impl.cpp
index 37d7dca7..2f309c3b 100644
--- a/dnn/src/cuda/batched_matrix_mul/opr_impl.cpp
+++ b/dnn/src/cuda/batched_matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/batched_matrix_mul/opr_impl.h b/dnn/src/cuda/batched_matrix_mul/opr_impl.h
index eafd0fc9..62ab4500 100644
--- a/dnn/src/cuda/batched_matrix_mul/opr_impl.h
+++ b/dnn/src/cuda/batched_matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/batched_matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/checksum/kern.cu b/dnn/src/cuda/checksum/kern.cu
index e8c04bb0..ca622a97 100644
--- a/dnn/src/cuda/checksum/kern.cu
+++ b/dnn/src/cuda/checksum/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/checksum/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/checksum/kern.cuh b/dnn/src/cuda/checksum/kern.cuh
index 4f6bb964..8000adca 100644
--- a/dnn/src/cuda/checksum/kern.cuh
+++ b/dnn/src/cuda/checksum/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/checksum/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/checksum/opr_impl.cpp b/dnn/src/cuda/checksum/opr_impl.cpp
index 25daea31..db1042c9 100644
--- a/dnn/src/cuda/checksum/opr_impl.cpp
+++ b/dnn/src/cuda/checksum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/checksum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/checksum/opr_impl.h b/dnn/src/cuda/checksum/opr_impl.h
index d5e5ef5e..293e2406 100644
--- a/dnn/src/cuda/checksum/opr_impl.h
+++ b/dnn/src/cuda/checksum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/checksum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/concat/concat.cu b/dnn/src/cuda/concat/concat.cu
index 40043eca..d2150f2f 100644
--- a/dnn/src/cuda/concat/concat.cu
+++ b/dnn/src/cuda/concat/concat.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/concat/concat.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/concat/concat.cuh b/dnn/src/cuda/concat/concat.cuh
index c0ce9830..a3d555c4 100644
--- a/dnn/src/cuda/concat/concat.cuh
+++ b/dnn/src/cuda/concat/concat.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/concat/concat.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/concat/opr_impl.cpp b/dnn/src/cuda/concat/opr_impl.cpp
index 188024b3..776ac7e6 100644
--- a/dnn/src/cuda/concat/opr_impl.cpp
+++ b/dnn/src/cuda/concat/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/concat/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/concat/opr_impl.h b/dnn/src/cuda/concat/opr_impl.h
index 3625c51e..40ef491d 100644
--- a/dnn/src/cuda/concat/opr_impl.h
+++ b/dnn/src/cuda/concat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/concat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cond_take/kern.cu b/dnn/src/cuda/cond_take/kern.cu
index 159e334f..f099f1e4 100644
--- a/dnn/src/cuda/cond_take/kern.cu
+++ b/dnn/src/cuda/cond_take/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cond_take/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cond_take/kern.cuh b/dnn/src/cuda/cond_take/kern.cuh
index 3cbc251b..4fbcc00a 100644
--- a/dnn/src/cuda/cond_take/kern.cuh
+++ b/dnn/src/cuda/cond_take/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cond_take/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cond_take/kern.inl b/dnn/src/cuda/cond_take/kern.inl
index 75f55de8..03d324c7 100644
--- a/dnn/src/cuda/cond_take/kern.inl
+++ b/dnn/src/cuda/cond_take/kern.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cond_take/kern.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cond_take/opr_impl.cpp b/dnn/src/cuda/cond_take/opr_impl.cpp
index cb0bf502..81c23da1 100644
--- a/dnn/src/cuda/cond_take/opr_impl.cpp
+++ b/dnn/src/cuda/cond_take/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cond_take/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cond_take/opr_impl.h b/dnn/src/cuda/cond_take/opr_impl.h
index 1dcdad20..9f5c077e 100644
--- a/dnn/src/cuda/cond_take/opr_impl.h
+++ b/dnn/src/cuda/cond_take/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cond_take/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/1x1.cpp b/dnn/src/cuda/conv_bias/1x1.cpp
index 0dab0071..3b255edf 100644
--- a/dnn/src/cuda/conv_bias/1x1.cpp
+++ b/dnn/src/cuda/conv_bias/1x1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/1x1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/algo.cpp b/dnn/src/cuda/conv_bias/algo.cpp
index 0d773930..b3f6ae18 100644
--- a/dnn/src/cuda/conv_bias/algo.cpp
+++ b/dnn/src/cuda/conv_bias/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/algo.h b/dnn/src/cuda/conv_bias/algo.h
index 95580231..88cd1cac 100644
--- a/dnn/src/cuda/conv_bias/algo.h
+++ b/dnn/src/cuda/conv_bias/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/batched_matmul.cpp b/dnn/src/cuda/conv_bias/batched_matmul.cpp
index 1b72a80b..cc5da625 100644
--- a/dnn/src/cuda/conv_bias/batched_matmul.cpp
+++ b/dnn/src/cuda/conv_bias/batched_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/batched_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/bfloat16.cpp b/dnn/src/cuda/conv_bias/bfloat16.cpp
index 68f93659..d9387a85 100644
--- a/dnn/src/cuda/conv_bias/bfloat16.cpp
+++ b/dnn/src/cuda/conv_bias/bfloat16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/bfloat16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise.cpp b/dnn/src/cuda/conv_bias/chanwise.cpp
index c02cae5d..c4b946ae 100644
--- a/dnn/src/cuda/conv_bias/chanwise.cpp
+++ b/dnn/src/cuda/conv_bias/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/fwd.cu b/dnn/src/cuda/conv_bias/chanwise/fwd.cu
index 477857bb..0f46bf2a 100644
--- a/dnn/src/cuda/conv_bias/chanwise/fwd.cu
+++ b/dnn/src/cuda/conv_bias/chanwise/fwd.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/fwd.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/fwd_8x8x32.cu b/dnn/src/cuda/conv_bias/chanwise/fwd_8x8x32.cu
index 3dbf9a52..15b2a471 100644
--- a/dnn/src/cuda/conv_bias/chanwise/fwd_8x8x32.cu
+++ b/dnn/src/cuda/conv_bias/chanwise/fwd_8x8x32.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/fwd_8x8x32.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/fwd_small.cu b/dnn/src/cuda/conv_bias/chanwise/fwd_small.cu
index b2afe2a5..f0b6616a 100644
--- a/dnn/src/cuda/conv_bias/chanwise/fwd_small.cu
+++ b/dnn/src/cuda/conv_bias/chanwise/fwd_small.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/fwd_small.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/kern.cuh b/dnn/src/cuda/conv_bias/chanwise/kern.cuh
index b8f878b4..256a9e73 100644
--- a/dnn/src/cuda/conv_bias/chanwise/kern.cuh
+++ b/dnn/src/cuda/conv_bias/chanwise/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/kern_helper.cuh b/dnn/src/cuda/conv_bias/chanwise/kern_helper.cuh
index 3d44e33a..53765e76 100644
--- a/dnn/src/cuda/conv_bias/chanwise/kern_helper.cuh
+++ b/dnn/src/cuda/conv_bias/chanwise/kern_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/kern_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/launch_config.cpp b/dnn/src/cuda/conv_bias/chanwise/launch_config.cpp
index cacf081a..164a85f2 100644
--- a/dnn/src/cuda/conv_bias/chanwise/launch_config.cpp
+++ b/dnn/src/cuda/conv_bias/chanwise/launch_config.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/launch_config.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise/launch_config.cuh b/dnn/src/cuda/conv_bias/chanwise/launch_config.cuh
index dfdf494e..d5000853 100644
--- a/dnn/src/cuda/conv_bias/chanwise/launch_config.cuh
+++ b/dnn/src/cuda/conv_bias/chanwise/launch_config.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise/launch_config.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise_8x8x32.cpp b/dnn/src/cuda/conv_bias/chanwise_8x8x32.cpp
index 4ed02ff1..1fa875b0 100644
--- a/dnn/src/cuda/conv_bias/chanwise_8x8x32.cpp
+++ b/dnn/src/cuda/conv_bias/chanwise_8x8x32.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise_8x8x32.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/chanwise_small.cpp b/dnn/src/cuda/conv_bias/chanwise_small.cpp
index 9aed9f03..afe6adbb 100644
--- a/dnn/src/cuda/conv_bias/chanwise_small.cpp
+++ b/dnn/src/cuda/conv_bias/chanwise_small.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/chanwise_small.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/conv_bias_int8.cuh b/dnn/src/cuda/conv_bias/conv_bias_int8.cuh
index ea4bb8bd..62968ea4 100644
--- a/dnn/src/cuda/conv_bias/conv_bias_int8.cuh
+++ b/dnn/src/cuda/conv_bias/conv_bias_int8.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/conv_bias_int8.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/cudnn_conv.cpp b/dnn/src/cuda/conv_bias/cudnn_conv.cpp
index 3e2f1388..64a16403 100644
--- a/dnn/src/cuda/conv_bias/cudnn_conv.cpp
+++ b/dnn/src/cuda/conv_bias/cudnn_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/cudnn_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/cudnn_conv_bias_activation.cpp b/dnn/src/cuda/conv_bias/cudnn_conv_bias_activation.cpp
index a0980c1e..7e75182c 100644
--- a/dnn/src/cuda/conv_bias/cudnn_conv_bias_activation.cpp
+++ b/dnn/src/cuda/conv_bias/cudnn_conv_bias_activation.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/cudnn_conv_bias_activation.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cu b/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cu
index e9e056e2..46a65af5 100644
--- a/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cu
+++ b/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cuh b/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cuh
index 85fdd29e..71c15856 100644
--- a/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cuh
+++ b/dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/cutlass_convolution_wrapper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/group_conv.cpp b/dnn/src/cuda/conv_bias/group_conv.cpp
index 4063f049..ee0df447 100644
--- a/dnn/src/cuda/conv_bias/group_conv.cpp
+++ b/dnn/src/cuda/conv_bias/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/helper.cpp b/dnn/src/cuda/conv_bias/helper.cpp
index 7a4629a4..44cf4e36 100644
--- a/dnn/src/cuda/conv_bias/helper.cpp
+++ b/dnn/src/cuda/conv_bias/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/helper.h b/dnn/src/cuda/conv_bias/helper.h
index c86ff5f6..dae22853 100644
--- a/dnn/src/cuda/conv_bias/helper.h
+++ b/dnn/src/cuda/conv_bias/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_dp4a.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_dp4a.cpp
index 1506ff6e..d7b4dff1 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_dp4a.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_dp4a.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_dp4a.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma.cpp
index cdfc7e5d..de206a83 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_reorder_filter.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_reorder_filter.cpp
index 3cc00de0..0671d2a3 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_reorder_filter.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_reorder_filter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_reorder_filter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_unroll_width.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_unroll_width.cpp
index 93fd5cd5..df732e90 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_unroll_width.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_unroll_width.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_chwn4_imma_unroll_width.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw32_imma.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw32_imma.cpp
index b02e9027..5f1ef475 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw32_imma.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw32_imma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw32_imma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
index 58c63144..76cec7d2 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_dp4a.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_imma.cpp b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_imma.cpp
index 4fa50b39..b268ea3d 100644
--- a/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_imma.cpp
+++ b/dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_imma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/implicit_gemm_int8_nchw4_imma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/inplace_matmul.cpp b/dnn/src/cuda/conv_bias/inplace_matmul.cpp
index b65386eb..5eb70683 100644
--- a/dnn/src/cuda/conv_bias/inplace_matmul.cpp
+++ b/dnn/src/cuda/conv_bias/inplace_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/inplace_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4.cuinl b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4.cuinl
index 6de410ef..61e5b48f 100644
--- a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4.cuinl
+++ b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit.cuinl b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit.cuinl
index 3d56fa8d..fa3c3527 100644
--- a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit.cuinl
+++ b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit_unroll_width.cuinl b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit_unroll_width.cuinl
index 348b92ef..d9ec030c 100644
--- a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit_unroll_width.cuinl
+++ b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit_unroll_width.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_ld_64bit_unroll_width.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_unroll_width.cuinl b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_unroll_width.cuinl
index a090a145..d97450b3 100644
--- a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_unroll_width.cuinl
+++ b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_unroll_width.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cdiv4hwn4_unroll_width.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cutlass_wrapper.cuinl b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cutlass_wrapper.cuinl
index 256742a1..31b9c40b 100644
--- a/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cutlass_wrapper.cuinl
+++ b/dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cutlass_wrapper.cuinl
@@ -3,7 +3,7 @@
  * dnn/src/cuda/conv_bias/int8/conv_bias_int8_implicit_gemm_cutlass_wrapper.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4.cuinl
index e19e9789..e341baa3 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_reorder_filter.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_reorder_filter.cuinl
index e44dc571..2056785d 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_reorder_filter.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_reorder_filter.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_reorder_filter.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_unroll_width.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_unroll_width.cuinl
index 1ec9c194..70140f16 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_unroll_width.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_unroll_width.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma16x16x16_cdiv4hwn4_unroll_width.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4.cuinl
index 369817bd..e52d1835 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_reorder_filter.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_reorder_filter.cuinl
index a5e2cedd..2c7fb934 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_reorder_filter.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_reorder_filter.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_reorder_filter.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_unroll_width.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_unroll_width.cuinl
index 8ae743cb..025b3781 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_unroll_width.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_unroll_width.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma32x8x16_cdiv4hwn4_unroll_width.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4.cuinl
index 869d4cd4..ced120a0 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_reorder_filter.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_reorder_filter.cuinl
index 6a8219dd..77057dac 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_reorder_filter.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_reorder_filter.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_reorder_filter.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_unroll_width.cuinl b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_unroll_width.cuinl
index a05af736..536d0b98 100644
--- a/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_unroll_width.cuinl
+++ b/dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_unroll_width.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/int8_imma/conv_bias_int8_implicit_gemm_imma8x32x16_cdiv4hwn4_unroll_width.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul.cpp b/dnn/src/cuda/conv_bias/matmul.cpp
index fc99218e..78038009 100644
--- a/dnn/src/cuda/conv_bias/matmul.cpp
+++ b/dnn/src/cuda/conv_bias/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/im2col.cu b/dnn/src/cuda/conv_bias/matmul/im2col.cu
index 0f19e956..2a5be3b4 100644
--- a/dnn/src/cuda/conv_bias/matmul/im2col.cu
+++ b/dnn/src/cuda/conv_bias/matmul/im2col.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/im2col.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/im2col.cuh b/dnn/src/cuda/conv_bias/matmul/im2col.cuh
index bd283bc3..1ecbd5ea 100644
--- a/dnn/src/cuda/conv_bias/matmul/im2col.cuh
+++ b/dnn/src/cuda/conv_bias/matmul/im2col.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/im2col.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cu b/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cu
index 201b23f3..ec4da730 100644
--- a/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cu
+++ b/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cuh b/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cuh
index 1c78cf3f..fbfb91a4 100644
--- a/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cuh
+++ b/dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/im2col_nhwc_int8.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cu b/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cu
index 354c28d2..750295b1 100644
--- a/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cu
+++ b/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cuh b/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cuh
index a9a98ba2..121bc29e 100644
--- a/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cuh
+++ b/dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul/inplace_matmul_impl.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/matmul_8x8x32.cpp b/dnn/src/cuda/conv_bias/matmul_8x8x32.cpp
index 33ab1728..f7ec0259 100644
--- a/dnn/src/cuda/conv_bias/matmul_8x8x32.cpp
+++ b/dnn/src/cuda/conv_bias/matmul_8x8x32.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/matmul_8x8x32.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/opr_impl.cpp b/dnn/src/cuda/conv_bias/opr_impl.cpp
index 34b89f17..d618bd09 100644
--- a/dnn/src/cuda/conv_bias/opr_impl.cpp
+++ b/dnn/src/cuda/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/opr_impl.h b/dnn/src/cuda/conv_bias/opr_impl.h
index 4ba78f9c..4c36a893 100644
--- a/dnn/src/cuda/conv_bias/opr_impl.h
+++ b/dnn/src/cuda/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma.cpp b/dnn/src/cuda/conv_bias/quint4x4x32_wmma.cpp
index 1210f7eb..a9bed4fb 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma.cpp
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cpp b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cpp
index cdca5682..80a66e1b 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cpp
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cu b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cu
index 500c653b..aaf42b19 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cu
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cuh b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cuh
index 6b0749dd..ee4e482d 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cuh
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/activation_u4.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cu b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cu
index 1ee6d9f8..e8f2ab10 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cu
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cuh b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cuh
index 462f5af4..3136795c 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cuh
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_data.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cu b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cu
index e307dfe5..280d9b39 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cu
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cuh b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cuh
index 6781da2f..9074f4eb 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cuh
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/reduce_with_scale_filter.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4.cuh b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4.cuh
index 88c58db6..78b54b0a 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4.cuh
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_1xfw.cu b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_1xfw.cu
index cf9a68ab..bea3036a 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_1xfw.cu
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_1xfw.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_1xfw.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_fhxfw.cu b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_fhxfw.cu
index 22298260..d63d20e0 100644
--- a/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_fhxfw.cu
+++ b/dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_fhxfw.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/conv_bias/quint4x4x32_wmma/wmma_conv_integer_u4_fhxfw.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/algo.cpp b/dnn/src/cuda/convolution/backward_data/algo.cpp
index cba028a4..1c3f6991 100644
--- a/dnn/src/cuda/convolution/backward_data/algo.cpp
+++ b/dnn/src/cuda/convolution/backward_data/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/algo.h b/dnn/src/cuda/convolution/backward_data/algo.h
index 380fb783..942d0b3e 100644
--- a/dnn/src/cuda/convolution/backward_data/algo.h
+++ b/dnn/src/cuda/convolution/backward_data/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/bfloat16.cpp b/dnn/src/cuda/convolution/backward_data/bfloat16.cpp
index d1388ac3..3e4c6304 100644
--- a/dnn/src/cuda/convolution/backward_data/bfloat16.cpp
+++ b/dnn/src/cuda/convolution/backward_data/bfloat16.cpp
@@ -2,7 +2,7 @@
  * \file src/cuda/convolution/backward_data/bfloat16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/chanwise.cpp b/dnn/src/cuda/convolution/backward_data/chanwise.cpp
index 57d3242e..f6272fca 100644
--- a/dnn/src/cuda/convolution/backward_data/chanwise.cpp
+++ b/dnn/src/cuda/convolution/backward_data/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/chanwise_small.cpp b/dnn/src/cuda/convolution/backward_data/chanwise_small.cpp
index 7f00a29e..cc5b12e2 100644
--- a/dnn/src/cuda/convolution/backward_data/chanwise_small.cpp
+++ b/dnn/src/cuda/convolution/backward_data/chanwise_small.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/chanwise_small.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/cudnn.cpp b/dnn/src/cuda/convolution/backward_data/cudnn.cpp
index 3b046972..e7ec0530 100644
--- a/dnn/src/cuda/convolution/backward_data/cudnn.cpp
+++ b/dnn/src/cuda/convolution/backward_data/cudnn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/cudnn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/group_conv.cpp b/dnn/src/cuda/convolution/backward_data/group_conv.cpp
index 51e2a4b1..e4df3ac8 100644
--- a/dnn/src/cuda/convolution/backward_data/group_conv.cpp
+++ b/dnn/src/cuda/convolution/backward_data/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_data/matmul.cpp b/dnn/src/cuda/convolution/backward_data/matmul.cpp
index 1188f3e5..6fd374aa 100644
--- a/dnn/src/cuda/convolution/backward_data/matmul.cpp
+++ b/dnn/src/cuda/convolution/backward_data/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_data/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/algo.cpp b/dnn/src/cuda/convolution/backward_filter/algo.cpp
index d7c9c4bc..fc89b30b 100644
--- a/dnn/src/cuda/convolution/backward_filter/algo.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/algo.h b/dnn/src/cuda/convolution/backward_filter/algo.h
index 2c8b3563..d224ee00 100644
--- a/dnn/src/cuda/convolution/backward_filter/algo.h
+++ b/dnn/src/cuda/convolution/backward_filter/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/bfloat16.cpp b/dnn/src/cuda/convolution/backward_filter/bfloat16.cpp
index efe98b25..911410cd 100644
--- a/dnn/src/cuda/convolution/backward_filter/bfloat16.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/bfloat16.cpp
@@ -2,7 +2,7 @@
  * \file src/cuda/convolution/backward_filter/bfloat16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/chanwise.cpp b/dnn/src/cuda/convolution/backward_filter/chanwise.cpp
index f12c5101..c3b3f731 100644
--- a/dnn/src/cuda/convolution/backward_filter/chanwise.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/cudnn.cpp b/dnn/src/cuda/convolution/backward_filter/cudnn.cpp
index 30d38dd5..f66e2b5b 100644
--- a/dnn/src/cuda/convolution/backward_filter/cudnn.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/cudnn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/cudnn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/group_conv.cpp b/dnn/src/cuda/convolution/backward_filter/group_conv.cpp
index a2569813..797469f3 100644
--- a/dnn/src/cuda/convolution/backward_filter/group_conv.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/backward_filter/matmul.cpp b/dnn/src/cuda/convolution/backward_filter/matmul.cpp
index 761f0ec1..0ae5871a 100644
--- a/dnn/src/cuda/convolution/backward_filter/matmul.cpp
+++ b/dnn/src/cuda/convolution/backward_filter/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/backward_filter/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/bwd_data.cu b/dnn/src/cuda/convolution/chanwise/bwd_data.cu
index 6c50c6bd..d2156218 100644
--- a/dnn/src/cuda/convolution/chanwise/bwd_data.cu
+++ b/dnn/src/cuda/convolution/chanwise/bwd_data.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/bwd_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/bwd_filter.cu b/dnn/src/cuda/convolution/chanwise/bwd_filter.cu
index 0fbab61a..9a36443e 100644
--- a/dnn/src/cuda/convolution/chanwise/bwd_filter.cu
+++ b/dnn/src/cuda/convolution/chanwise/bwd_filter.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/bwd_filter.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/bwd_small.cu b/dnn/src/cuda/convolution/chanwise/bwd_small.cu
index 3713f42f..8184d986 100644
--- a/dnn/src/cuda/convolution/chanwise/bwd_small.cu
+++ b/dnn/src/cuda/convolution/chanwise/bwd_small.cu
@@ -18,7 +18,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/kern.cuh b/dnn/src/cuda/convolution/chanwise/kern.cuh
index af19ad80..7bba345d 100644
--- a/dnn/src/cuda/convolution/chanwise/kern.cuh
+++ b/dnn/src/cuda/convolution/chanwise/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/kern_helper.cuh b/dnn/src/cuda/convolution/chanwise/kern_helper.cuh
index da97fdad..84516fee 100644
--- a/dnn/src/cuda/convolution/chanwise/kern_helper.cuh
+++ b/dnn/src/cuda/convolution/chanwise/kern_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/kern_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/launch_config.cpp b/dnn/src/cuda/convolution/chanwise/launch_config.cpp
index abc27999..5479fc13 100644
--- a/dnn/src/cuda/convolution/chanwise/launch_config.cpp
+++ b/dnn/src/cuda/convolution/chanwise/launch_config.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/launch_config.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/chanwise/launch_config.cuh b/dnn/src/cuda/convolution/chanwise/launch_config.cuh
index daca3a9e..997b438a 100644
--- a/dnn/src/cuda/convolution/chanwise/launch_config.cuh
+++ b/dnn/src/cuda/convolution/chanwise/launch_config.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/chanwise/launch_config.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/helper.cpp b/dnn/src/cuda/convolution/helper.cpp
index 06878e51..7c7280b5 100644
--- a/dnn/src/cuda/convolution/helper.cpp
+++ b/dnn/src/cuda/convolution/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/helper.h b/dnn/src/cuda/convolution/helper.h
index 92d24c7b..0528f5e2 100644
--- a/dnn/src/cuda/convolution/helper.h
+++ b/dnn/src/cuda/convolution/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/im2col.cu b/dnn/src/cuda/convolution/im2col.cu
index fcabab69..c2b7ec7f 100644
--- a/dnn/src/cuda/convolution/im2col.cu
+++ b/dnn/src/cuda/convolution/im2col.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/im2col.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/im2col.cuh b/dnn/src/cuda/convolution/im2col.cuh
index 7a7c9e0b..9a830fbd 100644
--- a/dnn/src/cuda/convolution/im2col.cuh
+++ b/dnn/src/cuda/convolution/im2col.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/im2col.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/opr_impl.cpp b/dnn/src/cuda/convolution/opr_impl.cpp
index 725103be..6e4b0c3d 100644
--- a/dnn/src/cuda/convolution/opr_impl.cpp
+++ b/dnn/src/cuda/convolution/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution/opr_impl.h b/dnn/src/cuda/convolution/opr_impl.h
index f4693849..58ce5785 100644
--- a/dnn/src/cuda/convolution/opr_impl.h
+++ b/dnn/src/cuda/convolution/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_data/algo.cpp b/dnn/src/cuda/convolution3d/backward_data/algo.cpp
index 3c2b5dab..1e992916 100644
--- a/dnn/src/cuda/convolution3d/backward_data/algo.cpp
+++ b/dnn/src/cuda/convolution3d/backward_data/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_data/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_data/algo.h b/dnn/src/cuda/convolution3d/backward_data/algo.h
index cf134da8..8d51028c 100644
--- a/dnn/src/cuda/convolution3d/backward_data/algo.h
+++ b/dnn/src/cuda/convolution3d/backward_data/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_data/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_data/chanwise.cpp b/dnn/src/cuda/convolution3d/backward_data/chanwise.cpp
index dafe1e6c..7c08aef1 100644
--- a/dnn/src/cuda/convolution3d/backward_data/chanwise.cpp
+++ b/dnn/src/cuda/convolution3d/backward_data/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_data/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_data/cudnn.cpp b/dnn/src/cuda/convolution3d/backward_data/cudnn.cpp
index 271b07cd..c7fcafdf 100644
--- a/dnn/src/cuda/convolution3d/backward_data/cudnn.cpp
+++ b/dnn/src/cuda/convolution3d/backward_data/cudnn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_data/cudnn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_data/group_conv.cpp b/dnn/src/cuda/convolution3d/backward_data/group_conv.cpp
index e2e992b6..a134e170 100644
--- a/dnn/src/cuda/convolution3d/backward_data/group_conv.cpp
+++ b/dnn/src/cuda/convolution3d/backward_data/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_data/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/algo.cpp b/dnn/src/cuda/convolution3d/backward_filter/algo.cpp
index 5533bbe3..6ae55261 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/algo.cpp
+++ b/dnn/src/cuda/convolution3d/backward_filter/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/algo.h b/dnn/src/cuda/convolution3d/backward_filter/algo.h
index 8c71eed9..8ee045a4 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/algo.h
+++ b/dnn/src/cuda/convolution3d/backward_filter/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/chanwise.cpp b/dnn/src/cuda/convolution3d/backward_filter/chanwise.cpp
index 55248bff..7f738f09 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/chanwise.cpp
+++ b/dnn/src/cuda/convolution3d/backward_filter/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/cudnn.cpp b/dnn/src/cuda/convolution3d/backward_filter/cudnn.cpp
index 5662b9ec..a0afe7c2 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/cudnn.cpp
+++ b/dnn/src/cuda/convolution3d/backward_filter/cudnn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/cudnn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/group_conv.cpp b/dnn/src/cuda/convolution3d/backward_filter/group_conv.cpp
index b71e54a2..0f2c29ad 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/group_conv.cpp
+++ b/dnn/src/cuda/convolution3d/backward_filter/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul.cpp b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul.cpp
index 132a07b4..d27680ae 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul.cpp
+++ b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/inplace_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cu b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cu
index 77a5b8f4..709153d6 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cu
+++ b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cuh b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cuh
index 871056dd..97038206 100644
--- a/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cuh
+++ b/dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/backward_filter/inplace_matmul_impl.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/chanwise/bwd_data.cu b/dnn/src/cuda/convolution3d/chanwise/bwd_data.cu
index 598115ed..f5f6d37b 100644
--- a/dnn/src/cuda/convolution3d/chanwise/bwd_data.cu
+++ b/dnn/src/cuda/convolution3d/chanwise/bwd_data.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/chanwise/bwd_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/chanwise/bwd_filter.cu b/dnn/src/cuda/convolution3d/chanwise/bwd_filter.cu
index 94338193..be9e5ab5 100644
--- a/dnn/src/cuda/convolution3d/chanwise/bwd_filter.cu
+++ b/dnn/src/cuda/convolution3d/chanwise/bwd_filter.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/chanwise/bwd_filter.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/chanwise/fwd.cu b/dnn/src/cuda/convolution3d/chanwise/fwd.cu
index e3c9d236..17b71a92 100644
--- a/dnn/src/cuda/convolution3d/chanwise/fwd.cu
+++ b/dnn/src/cuda/convolution3d/chanwise/fwd.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/chanwise/fwd.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/chanwise/kern.cuh b/dnn/src/cuda/convolution3d/chanwise/kern.cuh
index af17650e..1e186135 100644
--- a/dnn/src/cuda/convolution3d/chanwise/kern.cuh
+++ b/dnn/src/cuda/convolution3d/chanwise/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/chanwise/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/chanwise/kern_helper.cuh b/dnn/src/cuda/convolution3d/chanwise/kern_helper.cuh
index 759d0475..e44d1cd0 100644
--- a/dnn/src/cuda/convolution3d/chanwise/kern_helper.cuh
+++ b/dnn/src/cuda/convolution3d/chanwise/kern_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/chanwise/kern_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/1x1x1.cpp b/dnn/src/cuda/convolution3d/forward/1x1x1.cpp
index a72e9fcd..a7a12c3d 100644
--- a/dnn/src/cuda/convolution3d/forward/1x1x1.cpp
+++ b/dnn/src/cuda/convolution3d/forward/1x1x1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/1x1x1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/algo.cpp b/dnn/src/cuda/convolution3d/forward/algo.cpp
index 1b52a0e8..b04930b0 100644
--- a/dnn/src/cuda/convolution3d/forward/algo.cpp
+++ b/dnn/src/cuda/convolution3d/forward/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/algo.h b/dnn/src/cuda/convolution3d/forward/algo.h
index e6073dfa..16216ce6 100644
--- a/dnn/src/cuda/convolution3d/forward/algo.h
+++ b/dnn/src/cuda/convolution3d/forward/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/chanwise.cpp b/dnn/src/cuda/convolution3d/forward/chanwise.cpp
index 88a4a70c..ce30a896 100644
--- a/dnn/src/cuda/convolution3d/forward/chanwise.cpp
+++ b/dnn/src/cuda/convolution3d/forward/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/cudnn.cpp b/dnn/src/cuda/convolution3d/forward/cudnn.cpp
index 6dfcbc59..da801e31 100644
--- a/dnn/src/cuda/convolution3d/forward/cudnn.cpp
+++ b/dnn/src/cuda/convolution3d/forward/cudnn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/cudnn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/group_conv.cpp b/dnn/src/cuda/convolution3d/forward/group_conv.cpp
index 3eb2bf16..39da7fe3 100644
--- a/dnn/src/cuda/convolution3d/forward/group_conv.cpp
+++ b/dnn/src/cuda/convolution3d/forward/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/inplace_matmul.cpp b/dnn/src/cuda/convolution3d/forward/inplace_matmul.cpp
index b19afbf6..672ec5f7 100644
--- a/dnn/src/cuda/convolution3d/forward/inplace_matmul.cpp
+++ b/dnn/src/cuda/convolution3d/forward/inplace_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/inplace_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cu b/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cu
index 37a1b51d..ed215f91 100644
--- a/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cu
+++ b/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cuh b/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cuh
index 98f80060..4578252b 100644
--- a/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cuh
+++ b/dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/forward/inplace_matmul_impl.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/helper.cpp b/dnn/src/cuda/convolution3d/helper.cpp
index 478f71b1..591786ae 100644
--- a/dnn/src/cuda/convolution3d/helper.cpp
+++ b/dnn/src/cuda/convolution3d/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/helper.h b/dnn/src/cuda/convolution3d/helper.h
index 8fe73658..4d3218b7 100644
--- a/dnn/src/cuda/convolution3d/helper.h
+++ b/dnn/src/cuda/convolution3d/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/opr_impl.cpp b/dnn/src/cuda/convolution3d/opr_impl.cpp
index 7c2715ed..69990559 100644
--- a/dnn/src/cuda/convolution3d/opr_impl.cpp
+++ b/dnn/src/cuda/convolution3d/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution3d/opr_impl.h b/dnn/src/cuda/convolution3d/opr_impl.h
index a20249bb..8d419b49 100644
--- a/dnn/src/cuda/convolution3d/opr_impl.h
+++ b/dnn/src/cuda/convolution3d/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convolution3d/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/activation.cuh b/dnn/src/cuda/convolution_helper/activation.cuh
index 4ac4397c..17bb8ef1 100644
--- a/dnn/src/cuda/convolution_helper/activation.cuh
+++ b/dnn/src/cuda/convolution_helper/activation.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/activation.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/bias_visitor.cuh b/dnn/src/cuda/convolution_helper/bias_visitor.cuh
index 06f68139..4b7956bb 100644
--- a/dnn/src/cuda/convolution_helper/bias_visitor.cuh
+++ b/dnn/src/cuda/convolution_helper/bias_visitor.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/bias_visitor.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/block_consumer.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/block_consumer.cuh
index 8150cf31..778b81b5 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/block_consumer.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/block_consumer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/block_consumer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer.cuh
index c84b3938..e67f4ac3 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_coxhw.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_coxhw.cuh
index 22430275..e8f80fb6 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_coxhw.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_coxhw.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_coxhw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_unroll_width.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_unroll_width.cuh
index 5b5d85e7..f0f154b3 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_unroll_width.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_unroll_width.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_block_consumer_unroll_width.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer.cuh
index bb2fb89e..acb54f28 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer_unroll_width.cuh b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer_unroll_width.cuh
index be101be3..eb523637 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer_unroll_width.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer_unroll_width.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_consumer/iconv_imma_block_consumer_unroll_width.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator.cuh b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator.cuh
index 46cf16ad..dd11a519 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_basic.cuh b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_basic.cuh
index 2d521326..953e6ab6 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_basic.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_basic.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_basic.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_coxhw.cuh b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_coxhw.cuh
index ce06eea1..e2c0a3d7 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_coxhw.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_coxhw.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_coxhw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width.cuh b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width.cuh
index 5002c825..8ab17aab 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width_v2.cuh b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width_v2.cuh
index 130968d8..1904de87 100644
--- a/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width_v2.cuh
+++ b/dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width_v2.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/block_tile_iterator/block_tile_iterator_unroll_width_v2.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/config.cuh b/dnn/src/cuda/convolution_helper/config.cuh
index 37f6f964..ea71ba7c 100644
--- a/dnn/src/cuda/convolution_helper/config.cuh
+++ b/dnn/src/cuda/convolution_helper/config.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/config.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/conv_trait/conv_trait.cuh b/dnn/src/cuda/convolution_helper/conv_trait/conv_trait.cuh
index 80c58452..f4869ff4 100644
--- a/dnn/src/cuda/convolution_helper/conv_trait/conv_trait.cuh
+++ b/dnn/src/cuda/convolution_helper/conv_trait/conv_trait.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/conv_trait/conv_trait.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/conv_trait/ibatch_conv_trait.cuh b/dnn/src/cuda/convolution_helper/conv_trait/ibatch_conv_trait.cuh
index cc86f96c..f21197e1 100644
--- a/dnn/src/cuda/convolution_helper/conv_trait/ibatch_conv_trait.cuh
+++ b/dnn/src/cuda/convolution_helper/conv_trait/ibatch_conv_trait.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/conv_trait/ibatch_conv_trait.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/conv_trait/iconv_imma_trait.cuh b/dnn/src/cuda/convolution_helper/conv_trait/iconv_imma_trait.cuh
index bc86c123..3fb685eb 100644
--- a/dnn/src/cuda/convolution_helper/conv_trait/iconv_imma_trait.cuh
+++ b/dnn/src/cuda/convolution_helper/conv_trait/iconv_imma_trait.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/conv_trait/iconv_imma_trait.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/conv_trait/iconv_trait.cuh b/dnn/src/cuda/convolution_helper/conv_trait/iconv_trait.cuh
index 9493d584..f43f820d 100644
--- a/dnn/src/cuda/convolution_helper/conv_trait/iconv_trait.cuh
+++ b/dnn/src/cuda/convolution_helper/conv_trait/iconv_trait.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/conv_trait/iconv_trait.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/epilogue.cuh b/dnn/src/cuda/convolution_helper/epilogue.cuh
index 2fc65687..929457cf 100644
--- a/dnn/src/cuda/convolution_helper/epilogue.cuh
+++ b/dnn/src/cuda/convolution_helper/epilogue.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/epilogue.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor.cuh
index 7797507c..8212d282 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixhw.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixhw.cuh
index 6c23dfd3..1ebbd777 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixhw.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixhw.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixhw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixn.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixn.cuh
index 9744daf1..fbb08684 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixn.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixn.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixn.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixwoxn.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixwoxn.cuh
index 8fdff7c8..829799f9 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixwoxn.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixwoxn.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_cixwoxn.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_common.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_common.cuh
index 2443b317..62ecf9cb 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_common.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_common.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_common.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_coxci.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_coxci.cuh
index c592f37a..b5c73175 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_coxci.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_coxci.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_coxci.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixn.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixn.cuh
index 95b42699..b8e0ba64 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixn.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixn.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixn.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwixn.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwixn.cuh
index 2008e6b9..844a7e7d 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwixn.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwixn.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwixn.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwoxn.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwoxn.cuh
index b351538f..8833e84f 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwoxn.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwoxn.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_cixwoxn.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_fwxco.cuh b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_fwxco.cuh
index 99ec2fd5..2669905b 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_fwxco.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_fwxco.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_visitor/global_memory_visitor_imma_fwxco.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/global_memory_writer.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/global_memory_writer.cuh
index 5d6a6150..84d01f91 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/global_memory_writer.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/global_memory_writer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/global_memory_writer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer.cuh
index 285962fa..dfb6003c 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_coxhw.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_coxhw.cuh
index 82d26649..2d364139 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_coxhw.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_coxhw.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_coxhw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_unroll_width.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_unroll_width.cuh
index ad5ec13a..15fdfb2a 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_unroll_width.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_unroll_width.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/iconv_global_memory_writer_unroll_width.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer.cuh
index ff5b1de1..0987459d 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer_unroll_width.cuh b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer_unroll_width.cuh
index 04cf044f..8a50869c 100644
--- a/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer_unroll_width.cuh
+++ b/dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer_unroll_width.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/global_memory_writer/iconv_imma_global_memory_writer_unroll_width.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/kernel.cuh b/dnn/src/cuda/convolution_helper/kernel.cuh
index 8b10dfde..38af58e3 100644
--- a/dnn/src/cuda/convolution_helper/kernel.cuh
+++ b/dnn/src/cuda/convolution_helper/kernel.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/kernel.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/layout.cuh b/dnn/src/cuda/convolution_helper/layout.cuh
index 015c3090..930ad099 100644
--- a/dnn/src/cuda/convolution_helper/layout.cuh
+++ b/dnn/src/cuda/convolution_helper/layout.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/layout.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/parameter.cuh b/dnn/src/cuda/convolution_helper/parameter.cuh
index 9ea422c4..889bd84a 100644
--- a/dnn/src/cuda/convolution_helper/parameter.cuh
+++ b/dnn/src/cuda/convolution_helper/parameter.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/parameter.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convolution_helper/prologue.cuh b/dnn/src/cuda/convolution_helper/prologue.cuh
index 91d5539d..df7e325d 100644
--- a/dnn/src/cuda/convolution_helper/prologue.cuh
+++ b/dnn/src/cuda/convolution_helper/prologue.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/convolution_helper/prologue.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/conv_pooling.cuh b/dnn/src/cuda/convpooling/conv_pooling.cuh
index f7d19cfc..f3d122b3 100644
--- a/dnn/src/cuda/convpooling/conv_pooling.cuh
+++ b/dnn/src/cuda/convpooling/conv_pooling.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/conv_pooling.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/conv_pooling.h b/dnn/src/cuda/convpooling/conv_pooling.h
index f9658688..0192b082 100644
--- a/dnn/src/cuda/convpooling/conv_pooling.h
+++ b/dnn/src/cuda/convpooling/conv_pooling.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/conv_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/conv_pooling_tex.cu b/dnn/src/cuda/convpooling/conv_pooling_tex.cu
index c31c63b9..76b16d35 100644
--- a/dnn/src/cuda/convpooling/conv_pooling_tex.cu
+++ b/dnn/src/cuda/convpooling/conv_pooling_tex.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/conv_pooling_tex.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/conv_pooling_utils.cuh b/dnn/src/cuda/convpooling/conv_pooling_utils.cuh
index 0d1ea97f..82955c01 100644
--- a/dnn/src/cuda/convpooling/conv_pooling_utils.cuh
+++ b/dnn/src/cuda/convpooling/conv_pooling_utils.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/conv_pooling_utils.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/generate_kernel.py b/dnn/src/cuda/convpooling/kernel_impl/generate_kernel.py
index 67cd00d4..0a80f8d1 100755
--- a/dnn/src/cuda/convpooling/kernel_impl/generate_kernel.py
+++ b/dnn/src/cuda/convpooling/kernel_impl/generate_kernel.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl.h b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl.h
index f56a339e..90dc5fb2 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl.h
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize1.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize1.cu
index 084f54e2..37028210 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize1.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize2.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize2.cu
index a6cff432..7c77397e 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize2.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize2.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize2.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize3.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize3.cu
index 80e5b9e2..eb72747e 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize3.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize3.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize3.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize4.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize4.cu
index fdb4e2f5..4d9e0773 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize4.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize4.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize5.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize5.cu
index 22bc80e6..df5b23ef 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize5.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize5.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize5.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize6.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize6.cu
index cdc291ce..ec4fbb7d 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize6.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize6.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize6.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize7.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize7.cu
index 68a1f044..4ad72904 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize7.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize7.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_identity_ksize7.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize1.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize1.cu
index fcfa88b8..f610b03b 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize1.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize2.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize2.cu
index 908df0db..32831048 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize2.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize2.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize2.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize3.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize3.cu
index 79142abb..aaa379cc 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize3.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize3.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize3.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize4.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize4.cu
index 88256e69..cedc0cfb 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize4.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize4.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize5.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize5.cu
index eb14348b..0a6c8d4e 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize5.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize5.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize5.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize6.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize6.cu
index 1efdc713..f3c314de 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize6.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize6.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize6.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize7.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize7.cu
index d61455c4..41418fff 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize7.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize7.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_relu_ksize7.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize1.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize1.cu
index 3b24da14..637b9ba5 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize1.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize2.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize2.cu
index dab6d3bc..68160a27 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize2.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize2.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize2.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize3.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize3.cu
index 9501d314..4c056d2f 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize3.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize3.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize3.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize4.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize4.cu
index 88487912..20e04d17 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize4.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize4.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize5.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize5.cu
index 25b04e05..96c02bc6 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize5.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize5.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize5.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize6.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize6.cu
index 86121cb5..e65e7b8b 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize6.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize6.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize6.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize7.cu b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize7.cu
index 58245640..4227167c 100644
--- a/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize7.cu
+++ b/dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize7.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/kernel_impl/kernel_impl_sigmoid_ksize7.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/opr_impl.cpp b/dnn/src/cuda/convpooling/opr_impl.cpp
index 9ffa6e97..7a62336e 100644
--- a/dnn/src/cuda/convpooling/opr_impl.cpp
+++ b/dnn/src/cuda/convpooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/convpooling/opr_impl.h b/dnn/src/cuda/convpooling/opr_impl.h
index bd2d3c57..2590fe55 100644
--- a/dnn/src/cuda/convpooling/opr_impl.h
+++ b/dnn/src/cuda/convpooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/convpooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cuda_shfl_compat.cuh b/dnn/src/cuda/cuda_shfl_compat.cuh
index 85ac9e12..898cecea 100644
--- a/dnn/src/cuda/cuda_shfl_compat.cuh
+++ b/dnn/src/cuda/cuda_shfl_compat.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cuda_shfl_compat.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cudnn_with_check.h b/dnn/src/cuda/cudnn_with_check.h
index 4511f99d..bf65274e 100644
--- a/dnn/src/cuda/cudnn_with_check.h
+++ b/dnn/src/cuda/cudnn_with_check.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cudnn_with_check.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cudnn_wrapper.cpp b/dnn/src/cuda/cudnn_wrapper.cpp
index 64ecf4ac..4be98081 100644
--- a/dnn/src/cuda/cudnn_wrapper.cpp
+++ b/dnn/src/cuda/cudnn_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cudnn_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cudnn_wrapper.h b/dnn/src/cuda/cudnn_wrapper.h
index 8346ef0b..ec761d3f 100644
--- a/dnn/src/cuda/cudnn_wrapper.h
+++ b/dnn/src/cuda/cudnn_wrapper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cudnn_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/cumsum.cu b/dnn/src/cuda/cumsum/cumsum.cu
index d62e35a3..2665a55b 100644
--- a/dnn/src/cuda/cumsum/cumsum.cu
+++ b/dnn/src/cuda/cumsum/cumsum.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/cumsum.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/kern.cuh b/dnn/src/cuda/cumsum/kern.cuh
index 34bc5e0a..00363378 100644
--- a/dnn/src/cuda/cumsum/kern.cuh
+++ b/dnn/src/cuda/cumsum/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/kern_helper.cuh b/dnn/src/cuda/cumsum/kern_helper.cuh
index 48781836..b61cb68d 100644
--- a/dnn/src/cuda/cumsum/kern_helper.cuh
+++ b/dnn/src/cuda/cumsum/kern_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/kern_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/kern_impl.cu b/dnn/src/cuda/cumsum/kern_impl.cu
index cd6414c0..47f5d6fa 100644
--- a/dnn/src/cuda/cumsum/kern_impl.cu
+++ b/dnn/src/cuda/cumsum/kern_impl.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/kern_impl.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/kern_impl.cuinl b/dnn/src/cuda/cumsum/kern_impl.cuinl
index 0620de6d..51985fae 100644
--- a/dnn/src/cuda/cumsum/kern_impl.cuinl
+++ b/dnn/src/cuda/cumsum/kern_impl.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/kern_impl.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/opr_impl.cpp b/dnn/src/cuda/cumsum/opr_impl.cpp
index 75047037..bf2e0416 100644
--- a/dnn/src/cuda/cumsum/opr_impl.cpp
+++ b/dnn/src/cuda/cumsum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cumsum/opr_impl.h b/dnn/src/cuda/cumsum/opr_impl.h
index c7114d1b..26b49fbb 100644
--- a/dnn/src/cuda/cumsum/opr_impl.h
+++ b/dnn/src/cuda/cumsum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cumsum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cv/kernel_common.cuh b/dnn/src/cuda/cv/kernel_common.cuh
index f74fe2e5..4c1e5968 100644
--- a/dnn/src/cuda/cv/kernel_common.cuh
+++ b/dnn/src/cuda/cv/kernel_common.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cv/kernel_common.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cvt_color/cvt_color.cu b/dnn/src/cuda/cvt_color/cvt_color.cu
index 8ec46fbd..529e9534 100644
--- a/dnn/src/cuda/cvt_color/cvt_color.cu
+++ b/dnn/src/cuda/cvt_color/cvt_color.cu
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cvt_color/cvt_color.cuh b/dnn/src/cuda/cvt_color/cvt_color.cuh
index 741a80fe..a177251f 100644
--- a/dnn/src/cuda/cvt_color/cvt_color.cuh
+++ b/dnn/src/cuda/cvt_color/cvt_color.cuh
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cvt_color/opr_impl.cpp b/dnn/src/cuda/cvt_color/opr_impl.cpp
index 3de2d8aa..d9df4f48 100644
--- a/dnn/src/cuda/cvt_color/opr_impl.cpp
+++ b/dnn/src/cuda/cvt_color/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cvt_color/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/cvt_color/opr_impl.h b/dnn/src/cuda/cvt_color/opr_impl.h
index ce60e3fe..a6f2a04f 100644
--- a/dnn/src/cuda/cvt_color/opr_impl.h
+++ b/dnn/src/cuda/cvt_color/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/cvt_color/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dct/dct_channel_select.cu b/dnn/src/cuda/dct/dct_channel_select.cu
index 17e5d5b7..d8bd8b3e 100644
--- a/dnn/src/cuda/dct/dct_channel_select.cu
+++ b/dnn/src/cuda/dct/dct_channel_select.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dct/dct_channel_select.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dct/dct_channel_select.cuh b/dnn/src/cuda/dct/dct_channel_select.cuh
index ae10374b..451dbff0 100644
--- a/dnn/src/cuda/dct/dct_channel_select.cuh
+++ b/dnn/src/cuda/dct/dct_channel_select.cuh
@@ -3,7 +3,7 @@
  * MegEngine is Licensed under the Apache License, Version 2.0 (the
  "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dct/opr_impl.cpp b/dnn/src/cuda/dct/opr_impl.cpp
index 7865e62c..bd81953c 100644
--- a/dnn/src/cuda/dct/opr_impl.cpp
+++ b/dnn/src/cuda/dct/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/dct/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dct/opr_impl.h b/dnn/src/cuda/dct/opr_impl.h
index cb10b390..38991a34 100644
--- a/dnn/src/cuda/dct/opr_impl.h
+++ b/dnn/src/cuda/dct/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dct/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_data/algo.cpp b/dnn/src/cuda/deformable_conv/bwd_data/algo.cpp
index df7ec722..1efb0c24 100644
--- a/dnn/src/cuda/deformable_conv/bwd_data/algo.cpp
+++ b/dnn/src/cuda/deformable_conv/bwd_data/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_data/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_data/algo.h b/dnn/src/cuda/deformable_conv/bwd_data/algo.h
index af8fcc0d..bbc6beb8 100644
--- a/dnn/src/cuda/deformable_conv/bwd_data/algo.h
+++ b/dnn/src/cuda/deformable_conv/bwd_data/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_data/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_data/algo_matmul.cpp b/dnn/src/cuda/deformable_conv/bwd_data/algo_matmul.cpp
index 5083f1bd..83d1786b 100644
--- a/dnn/src/cuda/deformable_conv/bwd_data/algo_matmul.cpp
+++ b/dnn/src/cuda/deformable_conv/bwd_data/algo_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_data/algo_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_flt/algo.cpp b/dnn/src/cuda/deformable_conv/bwd_flt/algo.cpp
index a726e026..0f4b2d3b 100644
--- a/dnn/src/cuda/deformable_conv/bwd_flt/algo.cpp
+++ b/dnn/src/cuda/deformable_conv/bwd_flt/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_flt/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_flt/algo.h b/dnn/src/cuda/deformable_conv/bwd_flt/algo.h
index 390cd2ba..54100708 100644
--- a/dnn/src/cuda/deformable_conv/bwd_flt/algo.h
+++ b/dnn/src/cuda/deformable_conv/bwd_flt/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_flt/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/bwd_flt/algo_matmul.cpp b/dnn/src/cuda/deformable_conv/bwd_flt/algo_matmul.cpp
index 4efd4204..32b91270 100644
--- a/dnn/src/cuda/deformable_conv/bwd_flt/algo_matmul.cpp
+++ b/dnn/src/cuda/deformable_conv/bwd_flt/algo_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/bwd_flt/algo_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/fwd/algo.cpp b/dnn/src/cuda/deformable_conv/fwd/algo.cpp
index f321011d..f277f572 100644
--- a/dnn/src/cuda/deformable_conv/fwd/algo.cpp
+++ b/dnn/src/cuda/deformable_conv/fwd/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/fwd/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/fwd/algo.h b/dnn/src/cuda/deformable_conv/fwd/algo.h
index 2de2fca9..52cf5ff7 100644
--- a/dnn/src/cuda/deformable_conv/fwd/algo.h
+++ b/dnn/src/cuda/deformable_conv/fwd/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/fwd/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/fwd/algo_matmul.cpp b/dnn/src/cuda/deformable_conv/fwd/algo_matmul.cpp
index b3b49e16..ab209e68 100644
--- a/dnn/src/cuda/deformable_conv/fwd/algo_matmul.cpp
+++ b/dnn/src/cuda/deformable_conv/fwd/algo_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/fwd/algo_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cu b/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cu
index 6ac9ed3c..bea70680 100644
--- a/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cu
+++ b/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cuh b/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cuh
index 886fdd38..faeedf9e 100644
--- a/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cuh
+++ b/dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/kimpl/deformable_conv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/opr_impl.cpp b/dnn/src/cuda/deformable_conv/opr_impl.cpp
index 16cbe650..e38dd4ea 100644
--- a/dnn/src/cuda/deformable_conv/opr_impl.cpp
+++ b/dnn/src/cuda/deformable_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_conv/opr_impl.h b/dnn/src/cuda/deformable_conv/opr_impl.h
index 1740aedd..6f85a4e1 100644
--- a/dnn/src/cuda/deformable_conv/opr_impl.h
+++ b/dnn/src/cuda/deformable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cu b/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cu
index 514d1d55..20e53727 100644
--- a/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cu
+++ b/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cuh b/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cuh
index c5a5e09c..248c49e9 100644
--- a/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cuh
+++ b/dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_ps_roi_pooling/kimpl/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.cpp b/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.cpp
index ea60e408..c11d1c8d 100644
--- a/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.cpp
+++ b/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.h b/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.h
index 92f1da1d..0a1858c2 100644
--- a/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.h
+++ b/dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/deformable_ps_roi_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dot/dot.cu b/dnn/src/cuda/dot/dot.cu
index 91bb00ae..ca51b0a5 100644
--- a/dnn/src/cuda/dot/dot.cu
+++ b/dnn/src/cuda/dot/dot.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dot/dot.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dot/dot.cuh b/dnn/src/cuda/dot/dot.cuh
index 2aec60c8..10a78c09 100644
--- a/dnn/src/cuda/dot/dot.cuh
+++ b/dnn/src/cuda/dot/dot.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dot/dot.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dot/opr_impl.cpp b/dnn/src/cuda/dot/opr_impl.cpp
index aed291fa..6eddb1a9 100644
--- a/dnn/src/cuda/dot/opr_impl.cpp
+++ b/dnn/src/cuda/dot/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dot/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/dot/opr_impl.h b/dnn/src/cuda/dot/opr_impl.h
index 0e3a0146..11bf2d55 100644
--- a/dnn/src/cuda/dot/opr_impl.h
+++ b/dnn/src/cuda/dot/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/dot/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/kern_impl.inl b/dnn/src/cuda/elemwise/kern_impl.inl
index fc7a81cd..b3057b8a 100644
--- a/dnn/src/cuda/elemwise/kern_impl.inl
+++ b/dnn/src/cuda/elemwise/kern_impl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/kern_impl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/kern_wrapper.cuh b/dnn/src/cuda/elemwise/kern_wrapper.cuh
index 441cc163..a1f97572 100644
--- a/dnn/src/cuda/elemwise/kern_wrapper.cuh
+++ b/dnn/src/cuda/elemwise/kern_wrapper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/kern_wrapper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/opr_impl.cpp b/dnn/src/cuda/elemwise/opr_impl.cpp
index 2d927dca..dfc6eaf2 100644
--- a/dnn/src/cuda/elemwise/opr_impl.cpp
+++ b/dnn/src/cuda/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/opr_impl.h b/dnn/src/cuda/elemwise/opr_impl.h
index 4c25a0ae..e45e232a 100644
--- a/dnn/src/cuda/elemwise/opr_impl.h
+++ b/dnn/src/cuda/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/special_kerns.cuh b/dnn/src/cuda/elemwise/special_kerns.cuh
index 44b9cb92..2059c27d 100644
--- a/dnn/src/cuda/elemwise/special_kerns.cuh
+++ b/dnn/src/cuda/elemwise/special_kerns.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/special_kerns.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise/special_kerns.inl b/dnn/src/cuda/elemwise/special_kerns.inl
index 9b3cf59b..da776d7d 100644
--- a/dnn/src/cuda/elemwise/special_kerns.inl
+++ b/dnn/src/cuda/elemwise/special_kerns.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise/special_kerns.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_helper.cpp b/dnn/src/cuda/elemwise_helper.cpp
index bcec4f0e..65cf1778 100644
--- a/dnn/src/cuda/elemwise_helper.cpp
+++ b/dnn/src/cuda/elemwise_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_helper.cuh b/dnn/src/cuda/elemwise_helper.cuh
index d360ae5d..d95d49f1 100644
--- a/dnn/src/cuda/elemwise_helper.cuh
+++ b/dnn/src/cuda/elemwise_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/kern.cu b/dnn/src/cuda/elemwise_multi_type/kern.cu
index b6e9b11e..d64ba074 100644
--- a/dnn/src/cuda/elemwise_multi_type/kern.cu
+++ b/dnn/src/cuda/elemwise_multi_type/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/kern.cuh b/dnn/src/cuda/elemwise_multi_type/kern.cuh
index 32094644..89170ee4 100644
--- a/dnn/src/cuda/elemwise_multi_type/kern.cuh
+++ b/dnn/src/cuda/elemwise_multi_type/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/kern_iXxf32xf32xi8.cu b/dnn/src/cuda/elemwise_multi_type/kern_iXxf32xf32xi8.cu
index 4f503d81..03138ce9 100644
--- a/dnn/src/cuda/elemwise_multi_type/kern_iXxf32xf32xi8.cu
+++ b/dnn/src/cuda/elemwise_multi_type/kern_iXxf32xf32xi8.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/kern_iXxf32xf32xi8.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/kern_impl.inl b/dnn/src/cuda/elemwise_multi_type/kern_impl.inl
index 23553a4d..ccec972a 100644
--- a/dnn/src/cuda/elemwise_multi_type/kern_impl.inl
+++ b/dnn/src/cuda/elemwise_multi_type/kern_impl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/kern_impl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/kern_ops.cuh b/dnn/src/cuda/elemwise_multi_type/kern_ops.cuh
index bd5fd62a..9dc9322c 100644
--- a/dnn/src/cuda/elemwise_multi_type/kern_ops.cuh
+++ b/dnn/src/cuda/elemwise_multi_type/kern_ops.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/kern_ops.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/opr_impl.cpp b/dnn/src/cuda/elemwise_multi_type/opr_impl.cpp
index 3b479d2a..9108a4c8 100644
--- a/dnn/src/cuda/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/cuda/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/elemwise_multi_type/opr_impl.h b/dnn/src/cuda/elemwise_multi_type/opr_impl.h
index e5b363ca..249e14be 100644
--- a/dnn/src/cuda/elemwise_multi_type/opr_impl.h
+++ b/dnn/src/cuda/elemwise_multi_type/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_multi_type/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/error_info.cuh b/dnn/src/cuda/error_info.cuh
index 58567dd7..d95b0a25 100644
--- a/dnn/src/cuda/error_info.cuh
+++ b/dnn/src/cuda/error_info.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/error_info.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/eye/eye.cu b/dnn/src/cuda/eye/eye.cu
index fecda8ad..e3c36ee4 100644
--- a/dnn/src/cuda/eye/eye.cu
+++ b/dnn/src/cuda/eye/eye.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/eye/eye.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/eye/eye.cuh b/dnn/src/cuda/eye/eye.cuh
index 07b3a978..b6efa8d8 100644
--- a/dnn/src/cuda/eye/eye.cuh
+++ b/dnn/src/cuda/eye/eye.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/eye/eye.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/eye/opr_impl.cpp b/dnn/src/cuda/eye/opr_impl.cpp
index 540fd652..83b016ca 100644
--- a/dnn/src/cuda/eye/opr_impl.cpp
+++ b/dnn/src/cuda/eye/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/eye/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/eye/opr_impl.h b/dnn/src/cuda/eye/opr_impl.h
index 0268aa8d..163edaac 100644
--- a/dnn/src/cuda/eye/opr_impl.h
+++ b/dnn/src/cuda/eye/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/eye/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/fake_quant/kern.cu b/dnn/src/cuda/fake_quant/kern.cu
index d781e377..3321a4e9 100644
--- a/dnn/src/cuda/fake_quant/kern.cu
+++ b/dnn/src/cuda/fake_quant/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/fake_quant/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/fake_quant/kern.cuh b/dnn/src/cuda/fake_quant/kern.cuh
index 5cc2ed74..5d7fcb6d 100644
--- a/dnn/src/cuda/fake_quant/kern.cuh
+++ b/dnn/src/cuda/fake_quant/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/elemwise_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/fake_quant/opr_impl.cpp b/dnn/src/cuda/fake_quant/opr_impl.cpp
index 04ee2480..39d37abf 100644
--- a/dnn/src/cuda/fake_quant/opr_impl.cpp
+++ b/dnn/src/cuda/fake_quant/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/fake_quant/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/fake_quant/opr_impl.h b/dnn/src/cuda/fake_quant/opr_impl.h
index b4d0b5da..a8e63bfa 100644
--- a/dnn/src/cuda/fake_quant/opr_impl.h
+++ b/dnn/src/cuda/fake_quant/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/fake_quant/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/flip/flip.cu b/dnn/src/cuda/flip/flip.cu
index 45d30208..9ca2819d 100644
--- a/dnn/src/cuda/flip/flip.cu
+++ b/dnn/src/cuda/flip/flip.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/flip/flip.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/flip/flip.cuh b/dnn/src/cuda/flip/flip.cuh
index 48e1ba74..f19fab7b 100644
--- a/dnn/src/cuda/flip/flip.cuh
+++ b/dnn/src/cuda/flip/flip.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/flip/flip.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/flip/opr_impl.cpp b/dnn/src/cuda/flip/opr_impl.cpp
index 8ceac0be..4de71de6 100644
--- a/dnn/src/cuda/flip/opr_impl.cpp
+++ b/dnn/src/cuda/flip/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/flip/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/flip/opr_impl.h b/dnn/src/cuda/flip/opr_impl.h
index ee659c4a..39e5fb24 100644
--- a/dnn/src/cuda/flip/opr_impl.h
+++ b/dnn/src/cuda/flip/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/flip/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/fp16_help.cuh b/dnn/src/cuda/fp16_help.cuh
index 29c2bc0a..9d39c01c 100644
--- a/dnn/src/cuda/fp16_help.cuh
+++ b/dnn/src/cuda/fp16_help.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/fp16_help.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/gaussian_blur/gaussian_blur.cu b/dnn/src/cuda/gaussian_blur/gaussian_blur.cu
index 69e0a67f..234000fc 100644
--- a/dnn/src/cuda/gaussian_blur/gaussian_blur.cu
+++ b/dnn/src/cuda/gaussian_blur/gaussian_blur.cu
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/gaussian_blur/gaussian_blur.cuh b/dnn/src/cuda/gaussian_blur/gaussian_blur.cuh
index 116ce46e..4d878072 100644
--- a/dnn/src/cuda/gaussian_blur/gaussian_blur.cuh
+++ b/dnn/src/cuda/gaussian_blur/gaussian_blur.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/gaussian_blur/gaussian_blur.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/gaussian_blur/opr_impl.cpp b/dnn/src/cuda/gaussian_blur/opr_impl.cpp
index 49d7501a..b9cf616c 100644
--- a/dnn/src/cuda/gaussian_blur/opr_impl.cpp
+++ b/dnn/src/cuda/gaussian_blur/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/gaussian_blur/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/gaussian_blur/opr_impl.h b/dnn/src/cuda/gaussian_blur/opr_impl.h
index df472eaa..0486e2e5 100644
--- a/dnn/src/cuda/gaussian_blur/opr_impl.h
+++ b/dnn/src/cuda/gaussian_blur/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/gaussian_blur/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/bwd_data.cpp b/dnn/src/cuda/group_local/bwd_data.cpp
index 17646f55..3b4b523b 100644
--- a/dnn/src/cuda/group_local/bwd_data.cpp
+++ b/dnn/src/cuda/group_local/bwd_data.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/bwd_data.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/bwd_filter.cpp b/dnn/src/cuda/group_local/bwd_filter.cpp
index a2c69d74..7c7764d5 100644
--- a/dnn/src/cuda/group_local/bwd_filter.cpp
+++ b/dnn/src/cuda/group_local/bwd_filter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/bwd_filter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/forward/kern.cu b/dnn/src/cuda/group_local/forward/kern.cu
index e8850f45..991cbdb3 100644
--- a/dnn/src/cuda/group_local/forward/kern.cu
+++ b/dnn/src/cuda/group_local/forward/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/forward/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/forward/kern.cuh b/dnn/src/cuda/group_local/forward/kern.cuh
index f23c576f..e656c2b3 100644
--- a/dnn/src/cuda/group_local/forward/kern.cuh
+++ b/dnn/src/cuda/group_local/forward/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/cuda_interface.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/forward/opr_impl.cpp b/dnn/src/cuda/group_local/forward/opr_impl.cpp
index 23d10e04..e51c498a 100644
--- a/dnn/src/cuda/group_local/forward/opr_impl.cpp
+++ b/dnn/src/cuda/group_local/forward/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/forward/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/group_local/opr_impl.h b/dnn/src/cuda/group_local/opr_impl.h
index 33dacf68..1cbfb50b 100644
--- a/dnn/src/cuda/group_local/opr_impl.h
+++ b/dnn/src/cuda/group_local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/group_local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/handle.cpp b/dnn/src/cuda/handle.cpp
index b52e0015..d54218ad 100644
--- a/dnn/src/cuda/handle.cpp
+++ b/dnn/src/cuda/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/handle.h b/dnn/src/cuda/handle.h
index c4ac6ac2..400998fa 100644
--- a/dnn/src/cuda/handle.h
+++ b/dnn/src/cuda/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/handle_create.cpp b/dnn/src/cuda/handle_create.cpp
index ce01a1ac..3b927039 100644
--- a/dnn/src/cuda/handle_create.cpp
+++ b/dnn/src/cuda/handle_create.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/handle_create.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/images2neibs/kernel.cu b/dnn/src/cuda/images2neibs/kernel.cu
index 0cc8f1f7..c9725481 100644
--- a/dnn/src/cuda/images2neibs/kernel.cu
+++ b/dnn/src/cuda/images2neibs/kernel.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/images2neibs/kernel.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/images2neibs/kernel.cuh b/dnn/src/cuda/images2neibs/kernel.cuh
index 7d2c614e..a25ff996 100644
--- a/dnn/src/cuda/images2neibs/kernel.cuh
+++ b/dnn/src/cuda/images2neibs/kernel.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/images2neibs/kernel.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/images2neibs/opr_impl.cpp b/dnn/src/cuda/images2neibs/opr_impl.cpp
index a8dee41b..dd642191 100644
--- a/dnn/src/cuda/images2neibs/opr_impl.cpp
+++ b/dnn/src/cuda/images2neibs/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/images2neibs/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/images2neibs/opr_impl.h b/dnn/src/cuda/images2neibs/opr_impl.h
index beefbd19..01e198a5 100644
--- a/dnn/src/cuda/images2neibs/opr_impl.h
+++ b/dnn/src/cuda/images2neibs/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/images2neibs/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern.cuh b/dnn/src/cuda/indexing_multi_axis_vec/kern.cuh
index 4da3319c..ca9e56ce 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern.cuh
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_fwd.cu b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_fwd.cu
index 2a17cfcf..1a25f30e 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_fwd.cu
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_fwd.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_fwd.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_impl.cuinl b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_impl.cuinl
index de8ec033..6d9e1032 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_impl.cuinl
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_impl.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_impl.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_incr.cu b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_incr.cu
index cfefef12..a1601745 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_incr.cu
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_incr.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_incr.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_set.cu b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_set.cu
index a004c829..6199fdb0 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_set.cu
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_set.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern_apply_opr_set.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/kern_gen_offset_base.cu b/dnn/src/cuda/indexing_multi_axis_vec/kern_gen_offset_base.cu
index 46db387a..27b857ff 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/kern_gen_offset_base.cu
+++ b/dnn/src/cuda/indexing_multi_axis_vec/kern_gen_offset_base.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/kern_gen_offset_base.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.cpp b/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.cpp
index 85b83468..a3bc6919 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.cpp
+++ b/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.h b/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.h
index 386c4214..6ebd88f6 100644
--- a/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.h
+++ b/dnn/src/cuda/indexing_multi_axis_vec/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_multi_axis_vec/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_one_hot/kern.cu b/dnn/src/cuda/indexing_one_hot/kern.cu
index 34c84045..52d60497 100644
--- a/dnn/src/cuda/indexing_one_hot/kern.cu
+++ b/dnn/src/cuda/indexing_one_hot/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_one_hot/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_one_hot/kern.cuh b/dnn/src/cuda/indexing_one_hot/kern.cuh
index c6d83a5b..08c7b5fe 100644
--- a/dnn/src/cuda/indexing_one_hot/kern.cuh
+++ b/dnn/src/cuda/indexing_one_hot/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_one_hot/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_one_hot/opr_impl.cpp b/dnn/src/cuda/indexing_one_hot/opr_impl.cpp
index 758b2ddb..e23be960 100644
--- a/dnn/src/cuda/indexing_one_hot/opr_impl.cpp
+++ b/dnn/src/cuda/indexing_one_hot/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_one_hot/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/indexing_one_hot/opr_impl.h b/dnn/src/cuda/indexing_one_hot/opr_impl.h
index 302a3247..dac8b38a 100644
--- a/dnn/src/cuda/indexing_one_hot/opr_impl.h
+++ b/dnn/src/cuda/indexing_one_hot/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/indexing_one_hot/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/int_fastdiv.cpp b/dnn/src/cuda/int_fastdiv.cpp
index 055622d0..f56e1beb 100644
--- a/dnn/src/cuda/int_fastdiv.cpp
+++ b/dnn/src/cuda/int_fastdiv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/int_fastdiv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/int_fastdiv.cuh b/dnn/src/cuda/int_fastdiv.cuh
index ac12df09..02d74628 100644
--- a/dnn/src/cuda/int_fastdiv.cuh
+++ b/dnn/src/cuda/int_fastdiv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/int_fastdiv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/linspace/linspace.cu b/dnn/src/cuda/linspace/linspace.cu
index dba450f6..4aa01df5 100644
--- a/dnn/src/cuda/linspace/linspace.cu
+++ b/dnn/src/cuda/linspace/linspace.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/linspace/linspace.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/linspace/linspace.cuh b/dnn/src/cuda/linspace/linspace.cuh
index 9398f986..75a4d5a8 100644
--- a/dnn/src/cuda/linspace/linspace.cuh
+++ b/dnn/src/cuda/linspace/linspace.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/linspace/linspace.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/linspace/opr_impl.cpp b/dnn/src/cuda/linspace/opr_impl.cpp
index af796fa7..8dde1b99 100644
--- a/dnn/src/cuda/linspace/opr_impl.cpp
+++ b/dnn/src/cuda/linspace/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/linspace/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/linspace/opr_impl.h b/dnn/src/cuda/linspace/opr_impl.h
index 17ff525a..7cac7da5 100644
--- a/dnn/src/cuda/linspace/opr_impl.h
+++ b/dnn/src/cuda/linspace/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/linspace/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/backward_data.cpp b/dnn/src/cuda/local/backward_data.cpp
index 15a724ac..52881d44 100644
--- a/dnn/src/cuda/local/backward_data.cpp
+++ b/dnn/src/cuda/local/backward_data.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/backward_data.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/backward_data.cu b/dnn/src/cuda/local/backward_data.cu
index 47ad86c2..9115d4b3 100644
--- a/dnn/src/cuda/local/backward_data.cu
+++ b/dnn/src/cuda/local/backward_data.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/backward_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/backward_filter.cpp b/dnn/src/cuda/local/backward_filter.cpp
index 03a1d7d8..0bf31076 100644
--- a/dnn/src/cuda/local/backward_filter.cpp
+++ b/dnn/src/cuda/local/backward_filter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/backward_filter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/backward_filter.cu b/dnn/src/cuda/local/backward_filter.cu
index 8902b392..28fd6274 100644
--- a/dnn/src/cuda/local/backward_filter.cu
+++ b/dnn/src/cuda/local/backward_filter.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/backward_filter.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/LICENSE b/dnn/src/cuda/local/cuda-convnet2/LICENSE
index fad671d6..4eff800f 100644
--- a/dnn/src/cuda/local/cuda-convnet2/LICENSE
+++ b/dnn/src/cuda/local/cuda-convnet2/LICENSE
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/LICENSE
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/cudaconv2.cuh b/dnn/src/cuda/local/cuda-convnet2/cudaconv2.cuh
index e846cff9..b9054380 100644
--- a/dnn/src/cuda/local/cuda-convnet2/cudaconv2.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/cudaconv2.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/cudaconv2.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts.cu
index ef3d716d..7a272dc1 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color.cuh b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color.cuh
index d15040bc..a55bb2b0 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg0.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg0.cu
index a8d65af6..886c7f87 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg0.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg0.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg0.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg1.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg1.cu
index 1c0a782a..2ce15504 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg1.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale0_ckimg1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg0.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg0.cu
index 6f96b48d..d57f1d1e 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg0.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg0.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg0.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg1.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg1.cu
index 969ce077..e64f9a08 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg1.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_color_scale1_ckimg1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2.cuh b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2.cuh
index 6bdb9fdc..a2ac21d6 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg0.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg0.cu
index 5b56a76c..b8b0e0fd 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg0.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg0.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg0.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg1.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg1.cu
index bca263a7..8c680121 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg1.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale0_ckimg1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg0.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg0.cu
index d643271c..6639ce52 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg0.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg0.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg0.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg1.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg1.cu
index 764c01c1..22267a72 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg1.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg1.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_scale1_ckimg1.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_y4x32i4f16c4_tex.cu b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_y4x32i4f16c4_tex.cu
index e924b72f..6463d00a 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_y4x32i4f16c4_tex.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_y4x32i4f16c4_tex.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_sparse2_y4x32i4f16c4_tex.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_templates.cuh b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_templates.cuh
index 46b204a8..5bcbd35b 100644
--- a/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_templates.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_templates.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/filter_acts/filter_act_templates.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/helper_cuda.h b/dnn/src/cuda/local/cuda-convnet2/helper_cuda.h
index 73b3426c..25425895 100644
--- a/dnn/src/cuda/local/cuda-convnet2/helper_cuda.h
+++ b/dnn/src/cuda/local/cuda-convnet2/helper_cuda.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/helper_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
@@ -13,7 +13,7 @@
  *
  * This file is part of MegDNN, a deep neural network run-time library * developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  */
 
 #pragma once
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts.cu
index ea1e7ed1..43ff6d96 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color.cuh b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color.cuh
index 672bc1af..5426455f 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ff.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ff.cu
index fd4f7a9e..dee1bacf 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ff.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ff.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ff.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ft.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ft.cu
index d412a0cf..9f826f7b 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ft.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ft.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_color_ft.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor.cuh b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor.cuh
index eaf13217..d7f4f8a9 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler.cuh b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler.cuh
index b893653a..b247c0ed 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_fff.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_fff.cu
index 027efb9a..4c7ff1fc 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_fff.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_fff.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_fff.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_ftf.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_ftf.cu
index c90d94b2..eef84880 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_ftf.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_ftf.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_manycolor_kepler_ftf.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cu b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cu
index 5a010460..3110d147 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cuh b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cuh
index e99b4e62..14d512f9 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_medium_color.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_templates.cuh b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_templates.cuh
index 11d0fdaf..e73c163e 100644
--- a/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_templates.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_templates.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/img_acts/img_act_templates.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/nvmatrix.cuh b/dnn/src/cuda/local/cuda-convnet2/nvmatrix.cuh
index 0e8c66c7..98e61b64 100644
--- a/dnn/src/cuda/local/cuda-convnet2/nvmatrix.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/nvmatrix.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/nvmatrix.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts.cu
index 99fe7465..45b51d43 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ff.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ff.cu
index 89ed3cee..3b7d31e7 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ff.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ff.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ff.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ft.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ft.cu
index be22458b..1862e476 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ft.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ft.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_1_ft.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ff.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ff.cu
index ff4a5eb2..05c8c07c 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ff.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ff.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ff.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ft.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ft.cu
index 339bec62..62b589ae 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ft.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ft.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_2_ft.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ff.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ff.cu
index 5af43a1e..4ed6d12c 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ff.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ff.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ff.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ft.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ft.cu
index fd6cd284..6addd933 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ft.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ft.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_c_3_ft.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
@@ -23,7 +23,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * --------------------------------------------------------------------------
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * * Refactor kernels for seperate compilation
  * --------------------------------------------------------------------------
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_f4.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_f4.cu
index c3ae3d26..9a03ee30 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_f4.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_f4.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_f4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_pt_4.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_pt_4.cu
index a5de5b13..16d15216 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_pt_4.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_pt_4.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_16_pt_4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_8.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_8.cu
index d39fe509..1239757b 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_8.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_8.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/weight_acts_c_kepler_sw_by_8.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler.cuh b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler.cuh
index 4ef3ef6a..679c76cb 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler_sw.cuh b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler_sw.cuh
index baba1458..327c6690 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler_sw.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler_sw.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_c_kepler_sw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler.cuh b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler.cuh
index b75ed25e..629a9c47 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw.cuh b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw.cuh
index 96f2f944..f5644c7b 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_A_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_A_scale_f.cu
index e726d090..cf349182 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_A_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_A_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_A_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_B_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_B_scale_f.cu
index 5d0e752f..0dac2a75 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_B_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_B_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_B_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_C_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_C_scale_f.cu
index 66fd5843..94f47dbf 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_C_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_C_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_C_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_D_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_D_scale_f.cu
index d6833e52..4359f303 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_D_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_D_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_4_D_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_A_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_A_scale_f.cu
index a9e48071..a768af5b 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_A_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_A_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_A_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_B_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_B_scale_f.cu
index 9ab95d72..8095edaf 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_B_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_B_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_B_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_C_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_C_scale_f.cu
index 902a2d0a..52f35089 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_C_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_C_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_C_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_D_scale_f.cu b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_D_scale_f.cu
index b896dfb3..bdcb08af 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_D_scale_f.cu
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_D_scale_f.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_mc_mf_kepler_sw_by_8_D_scale_f.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_templates.cuh b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_templates.cuh
index 14323838..ae2f7b71 100644
--- a/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_templates.cuh
+++ b/dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_templates.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/cuda-convnet2/weight_acts/wet_act_templates.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/forward.cpp b/dnn/src/cuda/local/forward.cpp
index 963a275a..26494604 100644
--- a/dnn/src/cuda/local/forward.cpp
+++ b/dnn/src/cuda/local/forward.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/forward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/forward.cu b/dnn/src/cuda/local/forward.cu
index b18f7ac4..0a1bf6e7 100644
--- a/dnn/src/cuda/local/forward.cu
+++ b/dnn/src/cuda/local/forward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/forward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/local.cuh b/dnn/src/cuda/local/local.cuh
index de601288..142a2b3e 100644
--- a/dnn/src/cuda/local/local.cuh
+++ b/dnn/src/cuda/local/local.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/local.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local/opr_impl.h b/dnn/src/cuda/local/opr_impl.h
index 81d76967..5ecbbd0d 100644
--- a/dnn/src/cuda/local/opr_impl.h
+++ b/dnn/src/cuda/local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/algo.cpp b/dnn/src/cuda/local_share/backward_data/algo.cpp
index ec4afd49..34592a27 100644
--- a/dnn/src/cuda/local_share/backward_data/algo.cpp
+++ b/dnn/src/cuda/local_share/backward_data/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/algo.h b/dnn/src/cuda/local_share/backward_data/algo.h
index e4a62b38..e908b9fc 100644
--- a/dnn/src/cuda/local_share/backward_data/algo.h
+++ b/dnn/src/cuda/local_share/backward_data/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/batched_matmul.cpp b/dnn/src/cuda/local_share/backward_data/batched_matmul.cpp
index afff3129..2c82e27c 100644
--- a/dnn/src/cuda/local_share/backward_data/batched_matmul.cpp
+++ b/dnn/src/cuda/local_share/backward_data/batched_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/batched_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/implicit_gemm.cpp b/dnn/src/cuda/local_share/backward_data/implicit_gemm.cpp
index e2ab50fa..21ac3d2b 100644
--- a/dnn/src/cuda/local_share/backward_data/implicit_gemm.cpp
+++ b/dnn/src/cuda/local_share/backward_data/implicit_gemm.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/implicit_gemm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/local_share_bwd_data.cuh b/dnn/src/cuda/local_share/backward_data/local_share_bwd_data.cuh
index 45ba4148..feadb88c 100644
--- a/dnn/src/cuda/local_share/backward_data/local_share_bwd_data.cuh
+++ b/dnn/src/cuda/local_share/backward_data/local_share_bwd_data.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/local_share_bwd_data.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_data/local_share_bwd_data_f32_implicit_gemm.cu b/dnn/src/cuda/local_share/backward_data/local_share_bwd_data_f32_implicit_gemm.cu
index e4a62462..f377a5ac 100644
--- a/dnn/src/cuda/local_share/backward_data/local_share_bwd_data_f32_implicit_gemm.cu
+++ b/dnn/src/cuda/local_share/backward_data/local_share_bwd_data_f32_implicit_gemm.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_data/local_share_bwd_data_f32_implicit_gemm.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/algo.cpp b/dnn/src/cuda/local_share/backward_filter/algo.cpp
index f5350ba0..6f6981a8 100644
--- a/dnn/src/cuda/local_share/backward_filter/algo.cpp
+++ b/dnn/src/cuda/local_share/backward_filter/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/algo.h b/dnn/src/cuda/local_share/backward_filter/algo.h
index 83190674..33ba915a 100644
--- a/dnn/src/cuda/local_share/backward_filter/algo.h
+++ b/dnn/src/cuda/local_share/backward_filter/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/batched_matmul.cpp b/dnn/src/cuda/local_share/backward_filter/batched_matmul.cpp
index ed73d039..2c27f1af 100644
--- a/dnn/src/cuda/local_share/backward_filter/batched_matmul.cpp
+++ b/dnn/src/cuda/local_share/backward_filter/batched_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/batched_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/implicit_gemm.cpp b/dnn/src/cuda/local_share/backward_filter/implicit_gemm.cpp
index eca5aead..e5c7ad65 100644
--- a/dnn/src/cuda/local_share/backward_filter/implicit_gemm.cpp
+++ b/dnn/src/cuda/local_share/backward_filter/implicit_gemm.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/implicit_gemm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter.cuh b/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter.cuh
index 7fac515d..5671cdc0 100644
--- a/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter.cuh
+++ b/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter_f32_implicit_gemm.cu b/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter_f32_implicit_gemm.cu
index bd872ce0..a5ae40a2 100644
--- a/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter_f32_implicit_gemm.cu
+++ b/dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter_f32_implicit_gemm.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/backward_filter/local_share_bwd_filter_f32_implicit_gemm.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/algo.cpp b/dnn/src/cuda/local_share/forward/algo.cpp
index 3f8b0180..822c19ab 100644
--- a/dnn/src/cuda/local_share/forward/algo.cpp
+++ b/dnn/src/cuda/local_share/forward/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/algo.h b/dnn/src/cuda/local_share/forward/algo.h
index 0063f2d5..b78033d9 100644
--- a/dnn/src/cuda/local_share/forward/algo.h
+++ b/dnn/src/cuda/local_share/forward/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/batch_size_aware_chwn.cpp b/dnn/src/cuda/local_share/forward/batch_size_aware_chwn.cpp
index f4620e72..3db59138 100644
--- a/dnn/src/cuda/local_share/forward/batch_size_aware_chwn.cpp
+++ b/dnn/src/cuda/local_share/forward/batch_size_aware_chwn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/batch_size_aware_chwn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/batch_size_aware_chwn_small_image.cpp b/dnn/src/cuda/local_share/forward/batch_size_aware_chwn_small_image.cpp
index 632539ba..64961562 100644
--- a/dnn/src/cuda/local_share/forward/batch_size_aware_chwn_small_image.cpp
+++ b/dnn/src/cuda/local_share/forward/batch_size_aware_chwn_small_image.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/batch_size_aware_chwn_small_image.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/batched_matmul.cpp b/dnn/src/cuda/local_share/forward/batched_matmul.cpp
index af08ec39..64264567 100644
--- a/dnn/src/cuda/local_share/forward/batched_matmul.cpp
+++ b/dnn/src/cuda/local_share/forward/batched_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/batched_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/local_share_forward.cuh b/dnn/src/cuda/local_share/forward/local_share_forward.cuh
index 5beec848..867ec820 100644
--- a/dnn/src/cuda/local_share/forward/local_share_forward.cuh
+++ b/dnn/src/cuda/local_share/forward/local_share_forward.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/local_share_forward.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware.cu b/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware.cu
index 041765c8..4def8df1 100644
--- a/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware.cu
+++ b/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware_small_image.cu b/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware_small_image.cu
index 7b05f9f5..5279b295 100644
--- a/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware_small_image.cu
+++ b/dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware_small_image.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/forward/local_share_fwd_chwn_f32_batch_size_aware_small_image.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/helper.cpp b/dnn/src/cuda/local_share/helper.cpp
index e41dbe09..27220912 100644
--- a/dnn/src/cuda/local_share/helper.cpp
+++ b/dnn/src/cuda/local_share/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/helper.cuh b/dnn/src/cuda/local_share/helper.cuh
index 27468eff..67ae1dee 100644
--- a/dnn/src/cuda/local_share/helper.cuh
+++ b/dnn/src/cuda/local_share/helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/im2col.cu b/dnn/src/cuda/local_share/im2col.cu
index 0523571f..8856fab3 100644
--- a/dnn/src/cuda/local_share/im2col.cu
+++ b/dnn/src/cuda/local_share/im2col.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/im2col.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/im2col.cuh b/dnn/src/cuda/local_share/im2col.cuh
index 702a5a4f..c57fdae2 100644
--- a/dnn/src/cuda/local_share/im2col.cuh
+++ b/dnn/src/cuda/local_share/im2col.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/im2col.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/opr_impl.cpp b/dnn/src/cuda/local_share/opr_impl.cpp
index 054ffa48..93705f6a 100644
--- a/dnn/src/cuda/local_share/opr_impl.cpp
+++ b/dnn/src/cuda/local_share/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/local_share/opr_impl.h b/dnn/src/cuda/local_share/opr_impl.h
index 4d404155..28bc12bd 100644
--- a/dnn/src/cuda/local_share/opr_impl.h
+++ b/dnn/src/cuda/local_share/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/local_share/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/lrn/opr_impl.cpp b/dnn/src/cuda/lrn/opr_impl.cpp
index 9310d7ff..50afa1d1 100644
--- a/dnn/src/cuda/lrn/opr_impl.cpp
+++ b/dnn/src/cuda/lrn/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/lrn/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/lrn/opr_impl.h b/dnn/src/cuda/lrn/opr_impl.h
index 251b6535..1a91f2ef 100644
--- a/dnn/src/cuda/lrn/opr_impl.h
+++ b/dnn/src/cuda/lrn/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/lrn/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mask_conv/mask_conv.cu b/dnn/src/cuda/mask_conv/mask_conv.cu
index 8514cf8e..c89638d8 100644
--- a/dnn/src/cuda/mask_conv/mask_conv.cu
+++ b/dnn/src/cuda/mask_conv/mask_conv.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mask_conv/mask_conv.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mask_conv/mask_conv.cuh b/dnn/src/cuda/mask_conv/mask_conv.cuh
index 2113d242..31ffd6a7 100644
--- a/dnn/src/cuda/mask_conv/mask_conv.cuh
+++ b/dnn/src/cuda/mask_conv/mask_conv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mask_conv/mask_conv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mask_conv/opr_impl.cpp b/dnn/src/cuda/mask_conv/opr_impl.cpp
index 3d7e7691..e3b29597 100644
--- a/dnn/src/cuda/mask_conv/opr_impl.cpp
+++ b/dnn/src/cuda/mask_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mask_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mask_conv/opr_impl.h b/dnn/src/cuda/mask_conv/opr_impl.h
index 39e170e6..03e18059 100644
--- a/dnn/src/cuda/mask_conv/opr_impl.h
+++ b/dnn/src/cuda/mask_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mask_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_inverse/helper.cu b/dnn/src/cuda/matrix_inverse/helper.cu
index 9fff1b6c..ea184778 100644
--- a/dnn/src/cuda/matrix_inverse/helper.cu
+++ b/dnn/src/cuda/matrix_inverse/helper.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_inverse/helper.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_inverse/helper.cuh b/dnn/src/cuda/matrix_inverse/helper.cuh
index 8027da99..61c6ff57 100644
--- a/dnn/src/cuda/matrix_inverse/helper.cuh
+++ b/dnn/src/cuda/matrix_inverse/helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_inverse/helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_inverse/opr_impl.cpp b/dnn/src/cuda/matrix_inverse/opr_impl.cpp
index 93ceb55d..ef96a45c 100644
--- a/dnn/src/cuda/matrix_inverse/opr_impl.cpp
+++ b/dnn/src/cuda/matrix_inverse/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_inverse/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_inverse/opr_impl.h b/dnn/src/cuda/matrix_inverse/opr_impl.h
index 5c355a82..40bb96f4 100644
--- a/dnn/src/cuda/matrix_inverse/opr_impl.h
+++ b/dnn/src/cuda/matrix_inverse/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_inverse/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/algos.cpp b/dnn/src/cuda/matrix_mul/algos.cpp
index 85e5d47f..5bb7b332 100644
--- a/dnn/src/cuda/matrix_mul/algos.cpp
+++ b/dnn/src/cuda/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/algos.h b/dnn/src/cuda/matrix_mul/algos.h
index 5e5def36..6d93d524 100644
--- a/dnn/src/cuda/matrix_mul/algos.h
+++ b/dnn/src/cuda/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/bfloat16.cpp b/dnn/src/cuda/matrix_mul/bfloat16.cpp
index f635dc6a..cf8ce254 100644
--- a/dnn/src/cuda/matrix_mul/bfloat16.cpp
+++ b/dnn/src/cuda/matrix_mul/bfloat16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/bfloat16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/cublas.cpp b/dnn/src/cuda/matrix_mul/cublas.cpp
index 2863de0f..07fcf8f8 100644
--- a/dnn/src/cuda/matrix_mul/cublas.cpp
+++ b/dnn/src/cuda/matrix_mul/cublas.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/cublas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/cublasLt_wrapper.cpp b/dnn/src/cuda/matrix_mul/cublasLt_wrapper.cpp
index 793a2bf3..f5088714 100644
--- a/dnn/src/cuda/matrix_mul/cublasLt_wrapper.cpp
+++ b/dnn/src/cuda/matrix_mul/cublasLt_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/cublasLt_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/cublasLt_wrapper.h b/dnn/src/cuda/matrix_mul/cublasLt_wrapper.h
index 7f061a92..52dfeac9 100644
--- a/dnn/src/cuda/matrix_mul/cublasLt_wrapper.h
+++ b/dnn/src/cuda/matrix_mul/cublasLt_wrapper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/cublasLt_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/cublas_lt.cpp b/dnn/src/cuda/matrix_mul/cublas_lt.cpp
index 4764e91e..9fd7ed65 100644
--- a/dnn/src/cuda/matrix_mul/cublas_lt.cpp
+++ b/dnn/src/cuda/matrix_mul/cublas_lt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/cublas_lt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/naive.cpp b/dnn/src/cuda/matrix_mul/naive.cpp
index 1ae438f4..57759640 100644
--- a/dnn/src/cuda/matrix_mul/naive.cpp
+++ b/dnn/src/cuda/matrix_mul/naive.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/naive.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/naive.cu b/dnn/src/cuda/matrix_mul/naive.cu
index 05716cb1..49d8f6ee 100644
--- a/dnn/src/cuda/matrix_mul/naive.cu
+++ b/dnn/src/cuda/matrix_mul/naive.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/naive.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/naive.cuh b/dnn/src/cuda/matrix_mul/naive.cuh
index 350ab181..01d43d8b 100644
--- a/dnn/src/cuda/matrix_mul/naive.cuh
+++ b/dnn/src/cuda/matrix_mul/naive.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/naive.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/opr_impl.cpp b/dnn/src/cuda/matrix_mul/opr_impl.cpp
index bc52b4ae..2349e2f6 100644
--- a/dnn/src/cuda/matrix_mul/opr_impl.cpp
+++ b/dnn/src/cuda/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/opr_impl.h b/dnn/src/cuda/matrix_mul/opr_impl.h
index 4c8f3d2b..0f4997b0 100644
--- a/dnn/src/cuda/matrix_mul/opr_impl.h
+++ b/dnn/src/cuda/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma.cpp b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma.cpp
index 73ecbc99..380940d2 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma.cpp
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cu b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cu
index 53de8748..14389f9b 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cu
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cuh b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cuh
index f24724bc..df98b444 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cuh
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/preprocess_quantize_sum.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.cpp b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.cpp
index 50216b56..7a4eb5d3 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.cpp
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.h b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.h
index 2e218742..573f4aac 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.h
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cu b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cu
index 4e524f6d..fc3bb2a2 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cu
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cu
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cuh b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cuh
index 14328838..6ae7c778 100644
--- a/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cuh
+++ b/dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cuh
@@ -26,7 +26,7 @@
  * \file dnn/src/cuda/matrix_mul/uint4x4x32_wmma/wmma_matrix_mul_u4.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/max_tensor_diff/opr_impl.cpp b/dnn/src/cuda/max_tensor_diff/opr_impl.cpp
index ccf7e94a..b90b5c6f 100644
--- a/dnn/src/cuda/max_tensor_diff/opr_impl.cpp
+++ b/dnn/src/cuda/max_tensor_diff/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/max_tensor_diff/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/max_tensor_diff/opr_impl.h b/dnn/src/cuda/max_tensor_diff/opr_impl.h
index e0e915cc..71027f55 100644
--- a/dnn/src/cuda/max_tensor_diff/opr_impl.h
+++ b/dnn/src/cuda/max_tensor_diff/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/max_tensor_diff/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/megcore/cuda_computing_context.cpp b/dnn/src/cuda/megcore/cuda_computing_context.cpp
index d12976bf..b0a7684c 100644
--- a/dnn/src/cuda/megcore/cuda_computing_context.cpp
+++ b/dnn/src/cuda/megcore/cuda_computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/megcore/cuda_computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/megcore/cuda_computing_context.hpp b/dnn/src/cuda/megcore/cuda_computing_context.hpp
index b821612e..05ecc9ac 100644
--- a/dnn/src/cuda/megcore/cuda_computing_context.hpp
+++ b/dnn/src/cuda/megcore/cuda_computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/megcore/cuda_computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/megcore/cuda_device_context.cpp b/dnn/src/cuda/megcore/cuda_device_context.cpp
index c82b3282..914f1998 100644
--- a/dnn/src/cuda/megcore/cuda_device_context.cpp
+++ b/dnn/src/cuda/megcore/cuda_device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/megcore/cuda_device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/megcore/cuda_device_context.hpp b/dnn/src/cuda/megcore/cuda_device_context.hpp
index 6fe9e2d7..5c070503 100644
--- a/dnn/src/cuda/megcore/cuda_device_context.hpp
+++ b/dnn/src/cuda/megcore/cuda_device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/megcore/cuda_device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/megcore/public_api/computing.cpp b/dnn/src/cuda/megcore/public_api/computing.cpp
index e3f90227..f2f6e1b3 100644
--- a/dnn/src/cuda/megcore/public_api/computing.cpp
+++ b/dnn/src/cuda/megcore/public_api/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/megcore/public_api/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mesh_indexing/mesh_indexing.cu b/dnn/src/cuda/mesh_indexing/mesh_indexing.cu
index 16caa079..faa70fe1 100644
--- a/dnn/src/cuda/mesh_indexing/mesh_indexing.cu
+++ b/dnn/src/cuda/mesh_indexing/mesh_indexing.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mesh_indexing/mesh_indexing.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mesh_indexing/mesh_indexing.cuh b/dnn/src/cuda/mesh_indexing/mesh_indexing.cuh
index 24610045..e88baa97 100644
--- a/dnn/src/cuda/mesh_indexing/mesh_indexing.cuh
+++ b/dnn/src/cuda/mesh_indexing/mesh_indexing.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mesh_indexing/mesh_indexing.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mesh_indexing/opr_impl.cpp b/dnn/src/cuda/mesh_indexing/opr_impl.cpp
index 4aefe2db..b0a4b586 100644
--- a/dnn/src/cuda/mesh_indexing/opr_impl.cpp
+++ b/dnn/src/cuda/mesh_indexing/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mesh_indexing/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/mesh_indexing/opr_impl.h b/dnn/src/cuda/mesh_indexing/opr_impl.h
index 8030429b..22c0dfc1 100644
--- a/dnn/src/cuda/mesh_indexing/opr_impl.h
+++ b/dnn/src/cuda/mesh_indexing/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/mesh_indexing/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/param_pack/opr_impl.cpp b/dnn/src/cuda/param_pack/opr_impl.cpp
index ad2d1196..354dd2e7 100644
--- a/dnn/src/cuda/param_pack/opr_impl.cpp
+++ b/dnn/src/cuda/param_pack/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/param_pack/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/param_pack/opr_impl.h b/dnn/src/cuda/param_pack/opr_impl.h
index 38e2ec9f..87e521ea 100644
--- a/dnn/src/cuda/param_pack/opr_impl.h
+++ b/dnn/src/cuda/param_pack/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/param_pack/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/param_pack/param_pack.cu b/dnn/src/cuda/param_pack/param_pack.cu
index 58d4112a..c907db34 100644
--- a/dnn/src/cuda/param_pack/param_pack.cu
+++ b/dnn/src/cuda/param_pack/param_pack.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/param_pack/param_pack.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/param_pack/param_pack.cuh b/dnn/src/cuda/param_pack/param_pack.cuh
index aa79441c..35c9fe52 100644
--- a/dnn/src/cuda/param_pack/param_pack.cuh
+++ b/dnn/src/cuda/param_pack/param_pack.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/param_pack/param_pack.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/pooling/opr_impl.cpp b/dnn/src/cuda/pooling/opr_impl.cpp
index f2befcdf..89fbcb91 100644
--- a/dnn/src/cuda/pooling/opr_impl.cpp
+++ b/dnn/src/cuda/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/pooling/opr_impl.h b/dnn/src/cuda/pooling/opr_impl.h
index 784caf5f..c5fdce1c 100644
--- a/dnn/src/cuda/pooling/opr_impl.h
+++ b/dnn/src/cuda/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/pooling/pooling2d_int8.cu b/dnn/src/cuda/pooling/pooling2d_int8.cu
index b1222596..d8b12dad 100644
--- a/dnn/src/cuda/pooling/pooling2d_int8.cu
+++ b/dnn/src/cuda/pooling/pooling2d_int8.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/pooling/pooling2d_int8_cdiv4hwn4.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/pooling/pooling2d_int8.cuh b/dnn/src/cuda/pooling/pooling2d_int8.cuh
index e349f06e..b5554ba8 100644
--- a/dnn/src/cuda/pooling/pooling2d_int8.cuh
+++ b/dnn/src/cuda/pooling/pooling2d_int8.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/pooling/pooling2d_int8.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/powc/kern.cu b/dnn/src/cuda/powc/kern.cu
index 1882486b..7380ca36 100644
--- a/dnn/src/cuda/powc/kern.cu
+++ b/dnn/src/cuda/powc/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/powc/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/powc/kern.cuh b/dnn/src/cuda/powc/kern.cuh
index e9502b9b..41b03212 100644
--- a/dnn/src/cuda/powc/kern.cuh
+++ b/dnn/src/cuda/powc/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/powc/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/powc/opr_impl.cpp b/dnn/src/cuda/powc/opr_impl.cpp
index e6bb9235..4b6f6ce5 100644
--- a/dnn/src/cuda/powc/opr_impl.cpp
+++ b/dnn/src/cuda/powc/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/powc/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/powc/opr_impl.h b/dnn/src/cuda/powc/opr_impl.h
index 3f2e13f5..bc5fe0c6 100644
--- a/dnn/src/cuda/powc/opr_impl.h
+++ b/dnn/src/cuda/powc/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/powc/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/query_blocksize.cpp b/dnn/src/cuda/query_blocksize.cpp
index 3a60c5be..022979d9 100644
--- a/dnn/src/cuda/query_blocksize.cpp
+++ b/dnn/src/cuda/query_blocksize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/query_blocksize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/query_blocksize.cuh b/dnn/src/cuda/query_blocksize.cuh
index 0c438c3d..c3af3df0 100644
--- a/dnn/src/cuda/query_blocksize.cuh
+++ b/dnn/src/cuda/query_blocksize.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/query_blocksize.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/query_blocksize_impl.cu b/dnn/src/cuda/query_blocksize_impl.cu
index fa0d61de..9f43bc3b 100644
--- a/dnn/src/cuda/query_blocksize_impl.cu
+++ b/dnn/src/cuda/query_blocksize_impl.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/query_blocksize_impl.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce/opr_impl.cpp b/dnn/src/cuda/reduce/opr_impl.cpp
index ca677c7e..0449e4e6 100644
--- a/dnn/src/cuda/reduce/opr_impl.cpp
+++ b/dnn/src/cuda/reduce/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce/opr_impl.h b/dnn/src/cuda/reduce/opr_impl.h
index 5ead3a9a..cd069820 100644
--- a/dnn/src/cuda/reduce/opr_impl.h
+++ b/dnn/src/cuda/reduce/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce/reduce.cu b/dnn/src/cuda/reduce/reduce.cu
index 23dcc39c..992513cb 100644
--- a/dnn/src/cuda/reduce/reduce.cu
+++ b/dnn/src/cuda/reduce/reduce.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce/reduce.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce_helper.cuh b/dnn/src/cuda/reduce_helper.cuh
index 888f95ec..67b91faf 100644
--- a/dnn/src/cuda/reduce_helper.cuh
+++ b/dnn/src/cuda/reduce_helper.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce_helper.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce_helper.cuinl b/dnn/src/cuda/reduce_helper.cuinl
index da7087cd..1920aafe 100644
--- a/dnn/src/cuda/reduce_helper.cuinl
+++ b/dnn/src/cuda/reduce_helper.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce_helper.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce_helper/column.cuinl b/dnn/src/cuda/reduce_helper/column.cuinl
index 4a9973fd..54078ff3 100644
--- a/dnn/src/cuda/reduce_helper/column.cuinl
+++ b/dnn/src/cuda/reduce_helper/column.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce_helper/column.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/reduce_helper/largeBC.cuinl b/dnn/src/cuda/reduce_helper/largeBC.cuinl
index 0fdd1236..7fd46558 100644
--- a/dnn/src/cuda/reduce_helper/largeBC.cuinl
+++ b/dnn/src/cuda/reduce_helper/largeBC.cuinl
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/reduce_helper/largeBC.cuinl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern.cpp b/dnn/src/cuda/relayout/kern.cpp
index db1a0e06..e8b8690b 100644
--- a/dnn/src/cuda/relayout/kern.cpp
+++ b/dnn/src/cuda/relayout/kern.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern.cu b/dnn/src/cuda/relayout/kern.cu
index 04b5d752..a87ecf22 100644
--- a/dnn/src/cuda/relayout/kern.cu
+++ b/dnn/src/cuda/relayout/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern.cuh b/dnn/src/cuda/relayout/kern.cuh
index be08be50..2ca1d211 100644
--- a/dnn/src/cuda/relayout/kern.cuh
+++ b/dnn/src/cuda/relayout/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern_contiguous.cpp b/dnn/src/cuda/relayout/kern_contiguous.cpp
index 4a43dab2..f9e03334 100644
--- a/dnn/src/cuda/relayout/kern_contiguous.cpp
+++ b/dnn/src/cuda/relayout/kern_contiguous.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern_contiguous.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern_contiguous.cu b/dnn/src/cuda/relayout/kern_contiguous.cu
index 244a6926..f6d4dead 100644
--- a/dnn/src/cuda/relayout/kern_contiguous.cu
+++ b/dnn/src/cuda/relayout/kern_contiguous.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern_contiguous.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern_contiguous.cuh b/dnn/src/cuda/relayout/kern_contiguous.cuh
index 17dfd08f..8c0740f4 100644
--- a/dnn/src/cuda/relayout/kern_contiguous.cuh
+++ b/dnn/src/cuda/relayout/kern_contiguous.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern_contiguous.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern_transpose.cu b/dnn/src/cuda/relayout/kern_transpose.cu
index 6d568a00..dff60db3 100644
--- a/dnn/src/cuda/relayout/kern_transpose.cu
+++ b/dnn/src/cuda/relayout/kern_transpose.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern_transpose.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/kern_transpose.cuh b/dnn/src/cuda/relayout/kern_transpose.cuh
index 4ea71733..97c7e5b2 100644
--- a/dnn/src/cuda/relayout/kern_transpose.cuh
+++ b/dnn/src/cuda/relayout/kern_transpose.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/kern_transpose.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/opr_impl.cpp b/dnn/src/cuda/relayout/opr_impl.cpp
index d1c45064..d78f7eb4 100644
--- a/dnn/src/cuda/relayout/opr_impl.cpp
+++ b/dnn/src/cuda/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/opr_impl.h b/dnn/src/cuda/relayout/opr_impl.h
index 4005bc37..af2d2a3a 100644
--- a/dnn/src/cuda/relayout/opr_impl.h
+++ b/dnn/src/cuda/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/param_visitor.cpp b/dnn/src/cuda/relayout/param_visitor.cpp
index 816dd8a1..288bff8b 100644
--- a/dnn/src/cuda/relayout/param_visitor.cpp
+++ b/dnn/src/cuda/relayout/param_visitor.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/param_visitor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout/param_visitor.cuh b/dnn/src/cuda/relayout/param_visitor.cuh
index d49a89aa..6db08acf 100644
--- a/dnn/src/cuda/relayout/param_visitor.cuh
+++ b/dnn/src/cuda/relayout/param_visitor.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout/param_visitor.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/opr_impl.cpp b/dnn/src/cuda/relayout_format/opr_impl.cpp
index 448f2fc5..f1333ecc 100644
--- a/dnn/src/cuda/relayout_format/opr_impl.cpp
+++ b/dnn/src/cuda/relayout_format/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/opr_impl.h b/dnn/src/cuda/relayout_format/opr_impl.h
index 7ac585b4..e64aff8c 100644
--- a/dnn/src/cuda/relayout_format/opr_impl.h
+++ b/dnn/src/cuda/relayout_format/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/relayout_format.cpp b/dnn/src/cuda/relayout_format/relayout_format.cpp
index ac9fb4c7..f8d322bb 100644
--- a/dnn/src/cuda/relayout_format/relayout_format.cpp
+++ b/dnn/src/cuda/relayout_format/relayout_format.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/relayout_format.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/relayout_format.cu b/dnn/src/cuda/relayout_format/relayout_format.cu
index aa068dca..438bf267 100644
--- a/dnn/src/cuda/relayout_format/relayout_format.cu
+++ b/dnn/src/cuda/relayout_format/relayout_format.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/relayout_format.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/relayout_format.cuh b/dnn/src/cuda/relayout_format/relayout_format.cuh
index 7a42cf7d..4f7d614f 100644
--- a/dnn/src/cuda/relayout_format/relayout_format.cuh
+++ b/dnn/src/cuda/relayout_format/relayout_format.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/relayout_format.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/relayout_format/relayout_format.h b/dnn/src/cuda/relayout_format/relayout_format.h
index 01e74c3d..460fb6a7 100644
--- a/dnn/src/cuda/relayout_format/relayout_format.h
+++ b/dnn/src/cuda/relayout_format/relayout_format.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/relayout_format/relayout_format.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/backward_data.cpp b/dnn/src/cuda/remap/backward_data.cpp
index d0ef6c75..31953513 100644
--- a/dnn/src/cuda/remap/backward_data.cpp
+++ b/dnn/src/cuda/remap/backward_data.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/backward_data.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/backward_data.cu b/dnn/src/cuda/remap/backward_data.cu
index b6fe472b..b51f113c 100644
--- a/dnn/src/cuda/remap/backward_data.cu
+++ b/dnn/src/cuda/remap/backward_data.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/backward_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/backward_mat.cpp b/dnn/src/cuda/remap/backward_mat.cpp
index aeccf19e..4db02cd2 100644
--- a/dnn/src/cuda/remap/backward_mat.cpp
+++ b/dnn/src/cuda/remap/backward_mat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/backward_mat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/backward_mat.cu b/dnn/src/cuda/remap/backward_mat.cu
index eb2a345c..ecf6d9a4 100644
--- a/dnn/src/cuda/remap/backward_mat.cu
+++ b/dnn/src/cuda/remap/backward_mat.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/backward_mat.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/common.h b/dnn/src/cuda/remap/common.h
index 602fb8b7..b64d406d 100644
--- a/dnn/src/cuda/remap/common.h
+++ b/dnn/src/cuda/remap/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/forward.cpp b/dnn/src/cuda/remap/forward.cpp
index 312f7935..29cedace 100644
--- a/dnn/src/cuda/remap/forward.cpp
+++ b/dnn/src/cuda/remap/forward.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/forward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/forward.cu b/dnn/src/cuda/remap/forward.cu
index b417306a..ab429275 100644
--- a/dnn/src/cuda/remap/forward.cu
+++ b/dnn/src/cuda/remap/forward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/forward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/remap/opr_impl.h b/dnn/src/cuda/remap/opr_impl.h
index bdc5f66a..9a0c2400 100644
--- a/dnn/src/cuda/remap/opr_impl.h
+++ b/dnn/src/cuda/remap/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/remap/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/repeat/opr_impl.cpp b/dnn/src/cuda/repeat/opr_impl.cpp
index fd25d08e..62a6ba3b 100644
--- a/dnn/src/cuda/repeat/opr_impl.cpp
+++ b/dnn/src/cuda/repeat/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/repeat/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/repeat/opr_impl.h b/dnn/src/cuda/repeat/opr_impl.h
index 7541e157..a77f7594 100644
--- a/dnn/src/cuda/repeat/opr_impl.h
+++ b/dnn/src/cuda/repeat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/repeat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/repeat/repeat.cu b/dnn/src/cuda/repeat/repeat.cu
index 8976124b..97a4f584 100644
--- a/dnn/src/cuda/repeat/repeat.cu
+++ b/dnn/src/cuda/repeat/repeat.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/repeat/repeat.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/repeat/repeat.cuh b/dnn/src/cuda/repeat/repeat.cuh
index 99b4bcec..4d5782c1 100644
--- a/dnn/src/cuda/repeat/repeat.cuh
+++ b/dnn/src/cuda/repeat/repeat.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/repeat/repeat.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/backward.cpp b/dnn/src/cuda/resize/backward.cpp
index 3944b80a..b5f2c47f 100644
--- a/dnn/src/cuda/resize/backward.cpp
+++ b/dnn/src/cuda/resize/backward.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/backward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/backward.cu b/dnn/src/cuda/resize/backward.cu
index 006db394..cefecacd 100644
--- a/dnn/src/cuda/resize/backward.cu
+++ b/dnn/src/cuda/resize/backward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/backward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/common.cuh b/dnn/src/cuda/resize/common.cuh
index 6cb50b1b..9584eb8b 100644
--- a/dnn/src/cuda/resize/common.cuh
+++ b/dnn/src/cuda/resize/common.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/common.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/common.h b/dnn/src/cuda/resize/common.h
index d0fce502..f71663af 100644
--- a/dnn/src/cuda/resize/common.h
+++ b/dnn/src/cuda/resize/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/forward.cpp b/dnn/src/cuda/resize/forward.cpp
index 8f20bfee..4dce3ac0 100644
--- a/dnn/src/cuda/resize/forward.cpp
+++ b/dnn/src/cuda/resize/forward.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/forward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/forward.cu b/dnn/src/cuda/resize/forward.cu
index 2e22c18f..4bc97846 100644
--- a/dnn/src/cuda/resize/forward.cu
+++ b/dnn/src/cuda/resize/forward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/forward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/helper.cpp b/dnn/src/cuda/resize/helper.cpp
index 3db578fd..7fce68f6 100644
--- a/dnn/src/cuda/resize/helper.cpp
+++ b/dnn/src/cuda/resize/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/helper.h b/dnn/src/cuda/resize/helper.h
index 5d99c80a..2c947595 100644
--- a/dnn/src/cuda/resize/helper.h
+++ b/dnn/src/cuda/resize/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/opr_impl.h b/dnn/src/cuda/resize/opr_impl.h
index a96d90de..47ef99af 100644
--- a/dnn/src/cuda/resize/opr_impl.h
+++ b/dnn/src/cuda/resize/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/resize_cv.cu b/dnn/src/cuda/resize/resize_cv.cu
index 3a113bbc..01575b5f 100644
--- a/dnn/src/cuda/resize/resize_cv.cu
+++ b/dnn/src/cuda/resize/resize_cv.cu
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/resize/resize_cv.cuh b/dnn/src/cuda/resize/resize_cv.cuh
index ed3fc185..d2ac48fa 100644
--- a/dnn/src/cuda/resize/resize_cv.cuh
+++ b/dnn/src/cuda/resize/resize_cv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/resize/resize_cv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rng/opr_impl.cpp b/dnn/src/cuda/rng/opr_impl.cpp
index 08c7f4cc..4571733b 100644
--- a/dnn/src/cuda/rng/opr_impl.cpp
+++ b/dnn/src/cuda/rng/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rng/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rng/opr_impl.h b/dnn/src/cuda/rng/opr_impl.h
index 32405307..47033bb1 100644
--- a/dnn/src/cuda/rng/opr_impl.h
+++ b/dnn/src/cuda/rng/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rng/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_align/opr_impl.cpp b/dnn/src/cuda/roi_align/opr_impl.cpp
index 86ab661e..41aa47e3 100644
--- a/dnn/src/cuda/roi_align/opr_impl.cpp
+++ b/dnn/src/cuda/roi_align/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_align/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_align/opr_impl.h b/dnn/src/cuda/roi_align/opr_impl.h
index 011b1e44..3bcff2e8 100644
--- a/dnn/src/cuda/roi_align/opr_impl.h
+++ b/dnn/src/cuda/roi_align/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_align/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_align/roi_align.cu b/dnn/src/cuda/roi_align/roi_align.cu
index de3ac56c..34f2a4d2 100644
--- a/dnn/src/cuda/roi_align/roi_align.cu
+++ b/dnn/src/cuda/roi_align/roi_align.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_align/roi_align.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_align/roi_align.cuh b/dnn/src/cuda/roi_align/roi_align.cuh
index 0ed63238..aa5a8887 100644
--- a/dnn/src/cuda/roi_align/roi_align.cuh
+++ b/dnn/src/cuda/roi_align/roi_align.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_align/roi_align.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_copy/opr_impl.cpp b/dnn/src/cuda/roi_copy/opr_impl.cpp
index b8b4c5ec..fa425b1c 100644
--- a/dnn/src/cuda/roi_copy/opr_impl.cpp
+++ b/dnn/src/cuda/roi_copy/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_copy/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_copy/opr_impl.h b/dnn/src/cuda/roi_copy/opr_impl.h
index 36eba5c0..40686845 100644
--- a/dnn/src/cuda/roi_copy/opr_impl.h
+++ b/dnn/src/cuda/roi_copy/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_copy/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_pooling/opr_impl.cpp b/dnn/src/cuda/roi_pooling/opr_impl.cpp
index 686b560e..2c87ad5a 100644
--- a/dnn/src/cuda/roi_pooling/opr_impl.cpp
+++ b/dnn/src/cuda/roi_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_pooling/opr_impl.h b/dnn/src/cuda/roi_pooling/opr_impl.h
index 43d69fd1..fcdd32bf 100644
--- a/dnn/src/cuda/roi_pooling/opr_impl.h
+++ b/dnn/src/cuda/roi_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_pooling/roi_pooling.cu b/dnn/src/cuda/roi_pooling/roi_pooling.cu
index 6af2bc21..dccad806 100644
--- a/dnn/src/cuda/roi_pooling/roi_pooling.cu
+++ b/dnn/src/cuda/roi_pooling/roi_pooling.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_pooling/roi_pooling.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/roi_pooling/roi_pooling.cuh b/dnn/src/cuda/roi_pooling/roi_pooling.cuh
index fc8cfa5c..ffd77af1 100644
--- a/dnn/src/cuda/roi_pooling/roi_pooling.cuh
+++ b/dnn/src/cuda/roi_pooling/roi_pooling.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/roi_pooling/roi_pooling.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rotate/opr_impl.cpp b/dnn/src/cuda/rotate/opr_impl.cpp
index 2cbc911b..b58c00f5 100644
--- a/dnn/src/cuda/rotate/opr_impl.cpp
+++ b/dnn/src/cuda/rotate/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rotate/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rotate/opr_impl.h b/dnn/src/cuda/rotate/opr_impl.h
index 69263181..b11c706f 100644
--- a/dnn/src/cuda/rotate/opr_impl.h
+++ b/dnn/src/cuda/rotate/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rotate/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rotate/rotate.cu b/dnn/src/cuda/rotate/rotate.cu
index 07687728..f8b69e1e 100644
--- a/dnn/src/cuda/rotate/rotate.cu
+++ b/dnn/src/cuda/rotate/rotate.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rotate/rotate.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/rotate/rotate.cuh b/dnn/src/cuda/rotate/rotate.cuh
index eb64bf38..e6c81531 100644
--- a/dnn/src/cuda/rotate/rotate.cuh
+++ b/dnn/src/cuda/rotate/rotate.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/rotate/rotate.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/separable_conv/opr_impl.cpp b/dnn/src/cuda/separable_conv/opr_impl.cpp
index 9b5186fe..d24e8380 100644
--- a/dnn/src/cuda/separable_conv/opr_impl.cpp
+++ b/dnn/src/cuda/separable_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/separable_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/separable_conv/opr_impl.h b/dnn/src/cuda/separable_conv/opr_impl.h
index 069a56b8..9df1fcaf 100644
--- a/dnn/src/cuda/separable_conv/opr_impl.h
+++ b/dnn/src/cuda/separable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/separable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/separable_filter/opr_impl.cpp b/dnn/src/cuda/separable_filter/opr_impl.cpp
index 9106ce6f..5618a3b3 100644
--- a/dnn/src/cuda/separable_filter/opr_impl.cpp
+++ b/dnn/src/cuda/separable_filter/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/separable_filter/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/separable_filter/opr_impl.h b/dnn/src/cuda/separable_filter/opr_impl.h
index 275699fc..c8a5bbc3 100644
--- a/dnn/src/cuda/separable_filter/opr_impl.h
+++ b/dnn/src/cuda/separable_filter/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/separable_filter/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/sleep/kern.cu b/dnn/src/cuda/sleep/kern.cu
index 046228df..5b380932 100644
--- a/dnn/src/cuda/sleep/kern.cu
+++ b/dnn/src/cuda/sleep/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/sleep/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/sleep/kern.cuh b/dnn/src/cuda/sleep/kern.cuh
index ed0cfb80..d5e38b4c 100644
--- a/dnn/src/cuda/sleep/kern.cuh
+++ b/dnn/src/cuda/sleep/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/sleep/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/sleep/opr_impl.cpp b/dnn/src/cuda/sleep/opr_impl.cpp
index 4b1f216e..e0f89dc6 100644
--- a/dnn/src/cuda/sleep/opr_impl.cpp
+++ b/dnn/src/cuda/sleep/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/sleep/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/sleep/opr_impl.h b/dnn/src/cuda/sleep/opr_impl.h
index 1de90027..b32eab0b 100644
--- a/dnn/src/cuda/sleep/opr_impl.h
+++ b/dnn/src/cuda/sleep/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/sleep/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/split/opr_impl.cpp b/dnn/src/cuda/split/opr_impl.cpp
index aba62051..602f5a97 100644
--- a/dnn/src/cuda/split/opr_impl.cpp
+++ b/dnn/src/cuda/split/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/split/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/split/opr_impl.h b/dnn/src/cuda/split/opr_impl.h
index 7aa8410a..27522d97 100644
--- a/dnn/src/cuda/split/opr_impl.h
+++ b/dnn/src/cuda/split/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/split/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/split/split.cu b/dnn/src/cuda/split/split.cu
index 1546d541..49347c58 100644
--- a/dnn/src/cuda/split/split.cu
+++ b/dnn/src/cuda/split/split.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/split/split.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/split/split.cuh b/dnn/src/cuda/split/split.cuh
index 0c80cfc1..302c0545 100644
--- a/dnn/src/cuda/split/split.cuh
+++ b/dnn/src/cuda/split/split.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/split/split.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/svd/opr_impl.cpp b/dnn/src/cuda/svd/opr_impl.cpp
index 795db34e..f738028c 100644
--- a/dnn/src/cuda/svd/opr_impl.cpp
+++ b/dnn/src/cuda/svd/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/svd/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/svd/opr_impl.h b/dnn/src/cuda/svd/opr_impl.h
index a2a0cf71..d82e3a94 100644
--- a/dnn/src/cuda/svd/opr_impl.h
+++ b/dnn/src/cuda/svd/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/svd/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tensor_remap/opr_impl.cpp b/dnn/src/cuda/tensor_remap/opr_impl.cpp
index c1c8a919..408a2805 100644
--- a/dnn/src/cuda/tensor_remap/opr_impl.cpp
+++ b/dnn/src/cuda/tensor_remap/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tensor_remap/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tensor_remap/opr_impl.h b/dnn/src/cuda/tensor_remap/opr_impl.h
index 335b687c..1a9c8f68 100644
--- a/dnn/src/cuda/tensor_remap/opr_impl.h
+++ b/dnn/src/cuda/tensor_remap/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tensor_remap/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tensor_remap/tensor_remap.cu b/dnn/src/cuda/tensor_remap/tensor_remap.cu
index 0c79b28e..2220f1e3 100644
--- a/dnn/src/cuda/tensor_remap/tensor_remap.cu
+++ b/dnn/src/cuda/tensor_remap/tensor_remap.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tensor_remap/tensor_remap.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tensor_remap/tensor_remap.cuh b/dnn/src/cuda/tensor_remap/tensor_remap.cuh
index fa63c3f7..34335e64 100644
--- a/dnn/src/cuda/tensor_remap/tensor_remap.cuh
+++ b/dnn/src/cuda/tensor_remap/tensor_remap.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tensor_remap/tensor_remap.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tile/opr_impl.cpp b/dnn/src/cuda/tile/opr_impl.cpp
index a236d6d5..eba13494 100644
--- a/dnn/src/cuda/tile/opr_impl.cpp
+++ b/dnn/src/cuda/tile/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tile/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tile/opr_impl.h b/dnn/src/cuda/tile/opr_impl.h
index 7ef21bbb..dedebb4c 100644
--- a/dnn/src/cuda/tile/opr_impl.h
+++ b/dnn/src/cuda/tile/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tile/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tile/tile.cu b/dnn/src/cuda/tile/tile.cu
index 9216a9d7..9352db0b 100644
--- a/dnn/src/cuda/tile/tile.cu
+++ b/dnn/src/cuda/tile/tile.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tile/tile.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tile/tile.cuh b/dnn/src/cuda/tile/tile.cuh
index 396a49bb..e0e74687 100644
--- a/dnn/src/cuda/tile/tile.cuh
+++ b/dnn/src/cuda/tile/tile.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tile/tile.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/topk/opr_impl.cpp b/dnn/src/cuda/topk/opr_impl.cpp
index ed03f64d..7f9bd2cd 100644
--- a/dnn/src/cuda/topk/opr_impl.cpp
+++ b/dnn/src/cuda/topk/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/topk/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/topk/opr_impl.h b/dnn/src/cuda/topk/opr_impl.h
index faeda2fb..0c7f20fc 100644
--- a/dnn/src/cuda/topk/opr_impl.h
+++ b/dnn/src/cuda/topk/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/topk/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/topk/topk_radix.cu b/dnn/src/cuda/topk/topk_radix.cu
index f071a0c5..28cd43dd 100644
--- a/dnn/src/cuda/topk/topk_radix.cu
+++ b/dnn/src/cuda/topk/topk_radix.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/topk/topk_radix.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/topk/topk_radix.cuh b/dnn/src/cuda/topk/topk_radix.cuh
index 11a9d5fb..94c24d35 100644
--- a/dnn/src/cuda/topk/topk_radix.cuh
+++ b/dnn/src/cuda/topk/topk_radix.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/topk/topk_radix.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tqt/kern.cu b/dnn/src/cuda/tqt/kern.cu
index b0455fdc..0ec2e152 100644
--- a/dnn/src/cuda/tqt/kern.cu
+++ b/dnn/src/cuda/tqt/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tqt/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tqt/kern.cuh b/dnn/src/cuda/tqt/kern.cuh
index b26b1520..3be3b763 100644
--- a/dnn/src/cuda/tqt/kern.cuh
+++ b/dnn/src/cuda/tqt/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tqt/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tqt/opr_impl.cpp b/dnn/src/cuda/tqt/opr_impl.cpp
index fe9bca3c..4b1fff2e 100644
--- a/dnn/src/cuda/tqt/opr_impl.cpp
+++ b/dnn/src/cuda/tqt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tqt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/tqt/opr_impl.h b/dnn/src/cuda/tqt/opr_impl.h
index 1759e208..334c2fcf 100644
--- a/dnn/src/cuda/tqt/opr_impl.h
+++ b/dnn/src/cuda/tqt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/tqt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/transpose/opr_impl.cpp b/dnn/src/cuda/transpose/opr_impl.cpp
index b81ad9b9..228d9f83 100644
--- a/dnn/src/cuda/transpose/opr_impl.cpp
+++ b/dnn/src/cuda/transpose/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/transpose/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/transpose/opr_impl.h b/dnn/src/cuda/transpose/opr_impl.h
index e274d7e2..57dcd67c 100644
--- a/dnn/src/cuda/transpose/opr_impl.h
+++ b/dnn/src/cuda/transpose/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/transpose/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/transpose/transpose.cu b/dnn/src/cuda/transpose/transpose.cu
index 584c6e71..25828d7a 100644
--- a/dnn/src/cuda/transpose/transpose.cu
+++ b/dnn/src/cuda/transpose/transpose.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/transpose/transpose.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/transpose/transpose.cuh b/dnn/src/cuda/transpose/transpose.cuh
index 9e7a4429..558e6714 100644
--- a/dnn/src/cuda/transpose/transpose.cuh
+++ b/dnn/src/cuda/transpose/transpose.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/transpose/transpose.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/type_cvt/kern.cu b/dnn/src/cuda/type_cvt/kern.cu
index 5b4d75dd..675aad99 100644
--- a/dnn/src/cuda/type_cvt/kern.cu
+++ b/dnn/src/cuda/type_cvt/kern.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/type_cvt/kern.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/type_cvt/kern.cuh b/dnn/src/cuda/type_cvt/kern.cuh
index 0d744adc..a5c98a4a 100644
--- a/dnn/src/cuda/type_cvt/kern.cuh
+++ b/dnn/src/cuda/type_cvt/kern.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/type_cvt/kern.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/type_cvt/opr_impl.cpp b/dnn/src/cuda/type_cvt/opr_impl.cpp
index 201c4b49..e4332ee7 100644
--- a/dnn/src/cuda/type_cvt/opr_impl.cpp
+++ b/dnn/src/cuda/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/type_cvt/opr_impl.h b/dnn/src/cuda/type_cvt/opr_impl.h
index 6cdb46ba..7bdcdbaa 100644
--- a/dnn/src/cuda/type_cvt/opr_impl.h
+++ b/dnn/src/cuda/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/utils.cpp b/dnn/src/cuda/utils.cpp
index 0060a7cd..aff36f8a 100644
--- a/dnn/src/cuda/utils.cpp
+++ b/dnn/src/cuda/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/utils.cuh b/dnn/src/cuda/utils.cuh
index 2617fd12..6c28bf6f 100644
--- a/dnn/src/cuda/utils.cuh
+++ b/dnn/src/cuda/utils.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/utils.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/utils.h b/dnn/src/cuda/utils.h
index c5bb2698..763aec41 100644
--- a/dnn/src/cuda/utils.h
+++ b/dnn/src/cuda/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/common.cuh b/dnn/src/cuda/warp_affine/common.cuh
index 85b7e993..3465d77d 100644
--- a/dnn/src/cuda/warp_affine/common.cuh
+++ b/dnn/src/cuda/warp_affine/common.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/common.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/common.h b/dnn/src/cuda/warp_affine/common.h
index 83d04111..b7d7118d 100644
--- a/dnn/src/cuda/warp_affine/common.h
+++ b/dnn/src/cuda/warp_affine/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/helper.cpp b/dnn/src/cuda/warp_affine/helper.cpp
index 3256fb8a..c4bfdf2d 100644
--- a/dnn/src/cuda/warp_affine/helper.cpp
+++ b/dnn/src/cuda/warp_affine/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/helper.h b/dnn/src/cuda/warp_affine/helper.h
index 75c7fa45..950be364 100644
--- a/dnn/src/cuda/warp_affine/helper.h
+++ b/dnn/src/cuda/warp_affine/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/opr_impl.cpp b/dnn/src/cuda/warp_affine/opr_impl.cpp
index 0bed96be..981e2f8b 100644
--- a/dnn/src/cuda/warp_affine/opr_impl.cpp
+++ b/dnn/src/cuda/warp_affine/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/opr_impl.h b/dnn/src/cuda/warp_affine/opr_impl.h
index 25aff0b9..7a86d60a 100644
--- a/dnn/src/cuda/warp_affine/opr_impl.h
+++ b/dnn/src/cuda/warp_affine/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/warp_affine.cu b/dnn/src/cuda/warp_affine/warp_affine.cu
index 6667d017..828d10a4 100644
--- a/dnn/src/cuda/warp_affine/warp_affine.cu
+++ b/dnn/src/cuda/warp_affine/warp_affine.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/warp_affine.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/warp_affine_cv.cu b/dnn/src/cuda/warp_affine/warp_affine_cv.cu
index ecabebaa..2370cc50 100644
--- a/dnn/src/cuda/warp_affine/warp_affine_cv.cu
+++ b/dnn/src/cuda/warp_affine/warp_affine_cv.cu
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_affine/warp_affine_cv.cuh b/dnn/src/cuda/warp_affine/warp_affine_cv.cuh
index 9c0adb7b..6dd5bd96 100644
--- a/dnn/src/cuda/warp_affine/warp_affine_cv.cuh
+++ b/dnn/src/cuda/warp_affine/warp_affine_cv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_affine/warp_affine_cv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/backward_data.cpp b/dnn/src/cuda/warp_perspective/backward_data.cpp
index b49f10f8..ae4732cb 100644
--- a/dnn/src/cuda/warp_perspective/backward_data.cpp
+++ b/dnn/src/cuda/warp_perspective/backward_data.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/backward_data.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/backward_data.cu b/dnn/src/cuda/warp_perspective/backward_data.cu
index f225dc65..dea1e8be 100644
--- a/dnn/src/cuda/warp_perspective/backward_data.cu
+++ b/dnn/src/cuda/warp_perspective/backward_data.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/backward_data.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/backward_mat.cpp b/dnn/src/cuda/warp_perspective/backward_mat.cpp
index 68685802..81b52aae 100644
--- a/dnn/src/cuda/warp_perspective/backward_mat.cpp
+++ b/dnn/src/cuda/warp_perspective/backward_mat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/backward_mat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/backward_mat.cu b/dnn/src/cuda/warp_perspective/backward_mat.cu
index 147b0bde..404bc363 100644
--- a/dnn/src/cuda/warp_perspective/backward_mat.cu
+++ b/dnn/src/cuda/warp_perspective/backward_mat.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/backward_mat.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/common.cuh b/dnn/src/cuda/warp_perspective/common.cuh
index d86e6998..2ded1af7 100644
--- a/dnn/src/cuda/warp_perspective/common.cuh
+++ b/dnn/src/cuda/warp_perspective/common.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/common.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/common.h b/dnn/src/cuda/warp_perspective/common.h
index 982d39f2..db53c211 100644
--- a/dnn/src/cuda/warp_perspective/common.h
+++ b/dnn/src/cuda/warp_perspective/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/forward.cpp b/dnn/src/cuda/warp_perspective/forward.cpp
index 0f76cfe6..c9d6e88c 100644
--- a/dnn/src/cuda/warp_perspective/forward.cpp
+++ b/dnn/src/cuda/warp_perspective/forward.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/forward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/forward.cu b/dnn/src/cuda/warp_perspective/forward.cu
index 6a532f59..61d670ad 100644
--- a/dnn/src/cuda/warp_perspective/forward.cu
+++ b/dnn/src/cuda/warp_perspective/forward.cu
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/forward.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/helper.cpp b/dnn/src/cuda/warp_perspective/helper.cpp
index b8a0a3b4..6b379e76 100644
--- a/dnn/src/cuda/warp_perspective/helper.cpp
+++ b/dnn/src/cuda/warp_perspective/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/helper.h b/dnn/src/cuda/warp_perspective/helper.h
index 4bc58397..f6effc5f 100644
--- a/dnn/src/cuda/warp_perspective/helper.h
+++ b/dnn/src/cuda/warp_perspective/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/opr_impl.h b/dnn/src/cuda/warp_perspective/opr_impl.h
index 35da891b..493a139c 100644
--- a/dnn/src/cuda/warp_perspective/opr_impl.h
+++ b/dnn/src/cuda/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/warp_perspective.cuh b/dnn/src/cuda/warp_perspective/warp_perspective.cuh
index b99595b7..a450c2db 100644
--- a/dnn/src/cuda/warp_perspective/warp_perspective.cuh
+++ b/dnn/src/cuda/warp_perspective/warp_perspective.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/warp_perspective.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/warp_perspective_cv.cu b/dnn/src/cuda/warp_perspective/warp_perspective_cv.cu
index 6f44bd66..5d52bfe6 100644
--- a/dnn/src/cuda/warp_perspective/warp_perspective_cv.cu
+++ b/dnn/src/cuda/warp_perspective/warp_perspective_cv.cu
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/cuda/warp_perspective/warp_perspective_cv.cuh b/dnn/src/cuda/warp_perspective/warp_perspective_cv.cuh
index dc95db4a..50c6cb4f 100644
--- a/dnn/src/cuda/warp_perspective/warp_perspective_cv.cuh
+++ b/dnn/src/cuda/warp_perspective/warp_perspective_cv.cuh
@@ -2,7 +2,7 @@
  * \file dnn/src/cuda/warp_perspective/warp_perspective_cv.cuh
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/add_update/opr_impl.cpp b/dnn/src/fallback/add_update/opr_impl.cpp
index e6f3370b..67caf2a5 100644
--- a/dnn/src/fallback/add_update/opr_impl.cpp
+++ b/dnn/src/fallback/add_update/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/add_update/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/add_update/opr_impl.h b/dnn/src/fallback/add_update/opr_impl.h
index 10090efb..dfd6a50b 100644
--- a/dnn/src/fallback/add_update/opr_impl.h
+++ b/dnn/src/fallback/add_update/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/add_update/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/batched_matrix_mul/algos.cpp b/dnn/src/fallback/batched_matrix_mul/algos.cpp
index 9e809bd7..3c83a927 100644
--- a/dnn/src/fallback/batched_matrix_mul/algos.cpp
+++ b/dnn/src/fallback/batched_matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/batched_matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/batched_matrix_mul/algos.h b/dnn/src/fallback/batched_matrix_mul/algos.h
index 99626ba8..c6431eb2 100644
--- a/dnn/src/fallback/batched_matrix_mul/algos.h
+++ b/dnn/src/fallback/batched_matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/batched_matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/batched_matrix_mul/opr_impl.cpp b/dnn/src/fallback/batched_matrix_mul/opr_impl.cpp
index 7f613509..eadc496c 100644
--- a/dnn/src/fallback/batched_matrix_mul/opr_impl.cpp
+++ b/dnn/src/fallback/batched_matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/batched_matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/batched_matrix_mul/opr_impl.h b/dnn/src/fallback/batched_matrix_mul/opr_impl.h
index 6ddb7895..801c2c83 100644
--- a/dnn/src/fallback/batched_matrix_mul/opr_impl.h
+++ b/dnn/src/fallback/batched_matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/batched_matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/concat/opr_impl.cpp b/dnn/src/fallback/concat/opr_impl.cpp
index ed128eec..f6304db0 100644
--- a/dnn/src/fallback/concat/opr_impl.cpp
+++ b/dnn/src/fallback/concat/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/concat/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/concat/opr_impl.h b/dnn/src/fallback/concat/opr_impl.h
index 184854ba..0cb421b0 100644
--- a/dnn/src/fallback/concat/opr_impl.h
+++ b/dnn/src/fallback/concat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/concat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/algos.cpp b/dnn/src/fallback/conv_bias/algos.cpp
index dd5d5534..7ee22937 100644
--- a/dnn/src/fallback/conv_bias/algos.cpp
+++ b/dnn/src/fallback/conv_bias/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/algos.h b/dnn/src/fallback/conv_bias/algos.h
index b92fded7..b8921617 100644
--- a/dnn/src/fallback/conv_bias/algos.h
+++ b/dnn/src/fallback/conv_bias/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/common.h b/dnn/src/fallback/conv_bias/common.h
index 7b33c6ba..4048ff85 100644
--- a/dnn/src/fallback/conv_bias/common.h
+++ b/dnn/src/fallback/conv_bias/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/algos.cpp b/dnn/src/fallback/conv_bias/conv1x1/algos.cpp
index 01bbd194..a9ff87cd 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/algos.cpp
+++ b/dnn/src/fallback/conv_bias/conv1x1/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/algos.h b/dnn/src/fallback/conv_bias/conv1x1/algos.h
index 662812bc..7dcfbb6d 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/algos.h
+++ b/dnn/src/fallback/conv_bias/conv1x1/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.cpp b/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.cpp
index bd40dd24..a3592472 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.cpp
+++ b/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.h b/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.h
index f7250f7c..29604e51 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.h
+++ b/dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/algos_conv1x1_gemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_dispatcher.h b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_dispatcher.h
index 357fa6ad..306f3183 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_dispatcher.h
+++ b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_dispatcher.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/conv1x1_dispatcher.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.cpp b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.cpp
index ee927eaf..da8fd806 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.cpp
+++ b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/Conv1x1_strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.h b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.h
index 54cbe6e2..81bf96d0 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.h
+++ b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/conv1x1_strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.cpp b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.cpp
index c8e263aa..1b133e6e 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.cpp
+++ b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.h b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.h
index e6b8bdbe..11ab21aa 100644
--- a/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.h
+++ b/dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/conv1x1/conv1x1_utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/algos.cpp b/dnn/src/fallback/conv_bias/im2col/algos.cpp
index bcb4bd18..eac03a59 100644
--- a/dnn/src/fallback/conv_bias/im2col/algos.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/algos.h b/dnn/src/fallback/conv_bias/im2col/algos.h
index c7d0d4c9..22b2a3f8 100644
--- a/dnn/src/fallback/conv_bias/im2col/algos.h
+++ b/dnn/src/fallback/conv_bias/im2col/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/factory.h b/dnn/src/fallback/conv_bias/im2col/factory.h
index 4b35e884..f7daef77 100644
--- a/dnn/src/fallback/conv_bias/im2col/factory.h
+++ b/dnn/src/fallback/conv_bias/im2col/factory.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/factory.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/im2col_kerns.h b/dnn/src/fallback/conv_bias/im2col/im2col_kerns.h
index 1e080520..5dc404e5 100644
--- a/dnn/src/fallback/conv_bias/im2col/im2col_kerns.h
+++ b/dnn/src/fallback/conv_bias/im2col/im2col_kerns.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/im2col_kerns.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_base.h b/dnn/src/fallback/conv_bias/im2col/strategy_base.h
index 816106b4..07e9640d 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_base.h
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_default.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_default.cpp
index 911c7d55..27dd77d7 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_default.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_default.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_default.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_default_nchw44.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_default_nchw44.cpp
index 699d6661..aa2df690 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_default_nchw44.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_default_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_default.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44.cpp
index 354c3812..f01f3fbe 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot.cpp
index 610b98e2..329b06d5 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot_s2.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot_s2.cpp
index c4f8914f..7db1ca4c 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot_s2.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot_s2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_dot_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_fp32_s2.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_fp32_s2.cpp
index af13d2f0..36e34687 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_fp32_s2.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_fp32_s2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_fuse_nchw44_fp32_s2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_nopack.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_nopack.cpp
index ad2ca158..75ea3db0 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_nopack.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_nopack.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/strategy_nopack.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/im2col/strategy_onlypacka.cpp b/dnn/src/fallback/conv_bias/im2col/strategy_onlypacka.cpp
index 915ad441..20703930 100644
--- a/dnn/src/fallback/conv_bias/im2col/strategy_onlypacka.cpp
+++ b/dnn/src/fallback/conv_bias/im2col/strategy_onlypacka.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/im2col/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/opr_impl.cpp b/dnn/src/fallback/conv_bias/opr_impl.cpp
index 0c3f6f88..eb88d30c 100644
--- a/dnn/src/fallback/conv_bias/opr_impl.cpp
+++ b/dnn/src/fallback/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/opr_impl.h b/dnn/src/fallback/conv_bias/opr_impl.h
index 40d26d40..850d4490 100644
--- a/dnn/src/fallback/conv_bias/opr_impl.h
+++ b/dnn/src/fallback/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/winograd/strategy.cpp b/dnn/src/fallback/conv_bias/winograd/strategy.cpp
index f59fb049..0c5e5e34 100644
--- a/dnn/src/fallback/conv_bias/winograd/strategy.cpp
+++ b/dnn/src/fallback/conv_bias/winograd/strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/winograd/strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/winograd/strategy.h b/dnn/src/fallback/conv_bias/winograd/strategy.h
index fe186cb9..a5eda897 100644
--- a/dnn/src/fallback/conv_bias/winograd/strategy.h
+++ b/dnn/src/fallback/conv_bias/winograd/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/winograd/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/conv_bias/winograd/winograd.h b/dnn/src/fallback/conv_bias/winograd/winograd.h
index 2484d3dd..d10095a0 100644
--- a/dnn/src/fallback/conv_bias/winograd/winograd.h
+++ b/dnn/src/fallback/conv_bias/winograd/winograd.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/conv_bias/winograd/winograd.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/algos.cpp b/dnn/src/fallback/convolution/algos.cpp
index f8dca2c5..9633aff9 100644
--- a/dnn/src/fallback/convolution/algos.cpp
+++ b/dnn/src/fallback/convolution/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/algos.h b/dnn/src/fallback/convolution/algos.h
index 216ec104..9fd9548a 100644
--- a/dnn/src/fallback/convolution/algos.h
+++ b/dnn/src/fallback/convolution/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/col2img_helper.h b/dnn/src/fallback/convolution/col2img_helper.h
index c4f73b1a..5b2e201c 100644
--- a/dnn/src/fallback/convolution/col2img_helper.h
+++ b/dnn/src/fallback/convolution/col2img_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/col2img_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/do_conv_stride2_decl.inl b/dnn/src/fallback/convolution/do_conv_stride2_decl.inl
index 36ae4e3b..f43681f3 100644
--- a/dnn/src/fallback/convolution/do_conv_stride2_decl.inl
+++ b/dnn/src/fallback/convolution/do_conv_stride2_decl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/do_conv_stride2_decl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/img2col_helper.h b/dnn/src/fallback/convolution/img2col_helper.h
index d02a43ed..9317c5eb 100644
--- a/dnn/src/fallback/convolution/img2col_helper.h
+++ b/dnn/src/fallback/convolution/img2col_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/img2col_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/opr_impl.cpp b/dnn/src/fallback/convolution/opr_impl.cpp
index 4a2ed249..7417af0d 100644
--- a/dnn/src/fallback/convolution/opr_impl.cpp
+++ b/dnn/src/fallback/convolution/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/opr_impl.h b/dnn/src/fallback/convolution/opr_impl.h
index 59fd40ae..868839e1 100644
--- a/dnn/src/fallback/convolution/opr_impl.h
+++ b/dnn/src/fallback/convolution/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/run_conv.cpp b/dnn/src/fallback/convolution/run_conv.cpp
index 8691c49c..e2565d46 100644
--- a/dnn/src/fallback/convolution/run_conv.cpp
+++ b/dnn/src/fallback/convolution/run_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/run_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/convolution/run_conv.h b/dnn/src/fallback/convolution/run_conv.h
index 18fe7063..b8d9f053 100644
--- a/dnn/src/fallback/convolution/run_conv.h
+++ b/dnn/src/fallback/convolution/run_conv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/convolution/run_conv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/elemwise/opr_impl.cpp b/dnn/src/fallback/elemwise/opr_impl.cpp
index 33e31d07..5eaa5b6c 100644
--- a/dnn/src/fallback/elemwise/opr_impl.cpp
+++ b/dnn/src/fallback/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/elemwise/opr_impl.h b/dnn/src/fallback/elemwise/opr_impl.h
index b5e33584..1ab5e970 100644
--- a/dnn/src/fallback/elemwise/opr_impl.h
+++ b/dnn/src/fallback/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/elemwise_multi_type/opr_impl.cpp b/dnn/src/fallback/elemwise_multi_type/opr_impl.cpp
index 6f3cf450..f7db6a1f 100644
--- a/dnn/src/fallback/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/fallback/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/elemwise_multi_type/opr_impl.h b/dnn/src/fallback/elemwise_multi_type/opr_impl.h
index 3051f73c..3053a26a 100644
--- a/dnn/src/fallback/elemwise_multi_type/opr_impl.h
+++ b/dnn/src/fallback/elemwise_multi_type/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/elemwise_multi_type/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/flip/opr_impl.cpp b/dnn/src/fallback/flip/opr_impl.cpp
index ca4d102b..de334ff7 100644
--- a/dnn/src/fallback/flip/opr_impl.cpp
+++ b/dnn/src/fallback/flip/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/flip/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/flip/opr_impl.h b/dnn/src/fallback/flip/opr_impl.h
index 44f4b340..1ce3aaeb 100644
--- a/dnn/src/fallback/flip/opr_impl.h
+++ b/dnn/src/fallback/flip/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/flip/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/gaussian_blur/filter.h b/dnn/src/fallback/gaussian_blur/filter.h
index 66dbd0ac..90d2d4e0 100644
--- a/dnn/src/fallback/gaussian_blur/filter.h
+++ b/dnn/src/fallback/gaussian_blur/filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/gaussian_blur/opr_impl.cpp b/dnn/src/fallback/gaussian_blur/opr_impl.cpp
index b96cd9b5..841cb6b8 100644
--- a/dnn/src/fallback/gaussian_blur/opr_impl.cpp
+++ b/dnn/src/fallback/gaussian_blur/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/gaussian_blur/opr_impl.h b/dnn/src/fallback/gaussian_blur/opr_impl.h
index 887eed7d..ba63c082 100644
--- a/dnn/src/fallback/gaussian_blur/opr_impl.h
+++ b/dnn/src/fallback/gaussian_blur/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/gaussian_blur/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/group_local/opr_impl.cpp b/dnn/src/fallback/group_local/opr_impl.cpp
index 78458afd..e521eb08 100644
--- a/dnn/src/fallback/group_local/opr_impl.cpp
+++ b/dnn/src/fallback/group_local/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/group_local/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/group_local/opr_impl.h b/dnn/src/fallback/group_local/opr_impl.h
index 43fa7893..4543621c 100644
--- a/dnn/src/fallback/group_local/opr_impl.h
+++ b/dnn/src/fallback/group_local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/group_local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/handle.cpp b/dnn/src/fallback/handle.cpp
index 051e5b6c..9cbd9f3c 100644
--- a/dnn/src/fallback/handle.cpp
+++ b/dnn/src/fallback/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/handle.h b/dnn/src/fallback/handle.h
index af2ee709..2566e750 100644
--- a/dnn/src/fallback/handle.h
+++ b/dnn/src/fallback/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/mask_conv/opr_impl.cpp b/dnn/src/fallback/mask_conv/opr_impl.cpp
index 9d37a0fb..e2a51595 100644
--- a/dnn/src/fallback/mask_conv/opr_impl.cpp
+++ b/dnn/src/fallback/mask_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/mask_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/mask_conv/opr_impl.h b/dnn/src/fallback/mask_conv/opr_impl.h
index 8487c643..a1c37715 100644
--- a/dnn/src/fallback/mask_conv/opr_impl.h
+++ b/dnn/src/fallback/mask_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/mask_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/algos.cpp b/dnn/src/fallback/matrix_mul/algos.cpp
index 280a2976..cebf8957 100644
--- a/dnn/src/fallback/matrix_mul/algos.cpp
+++ b/dnn/src/fallback/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/algos.h b/dnn/src/fallback/matrix_mul/algos.h
index df98c56f..3c56bebe 100644
--- a/dnn/src/fallback/matrix_mul/algos.h
+++ b/dnn/src/fallback/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/gemm_common.h b/dnn/src/fallback/matrix_mul/gemm_common.h
index c45b3f89..bd39a358 100644
--- a/dnn/src/fallback/matrix_mul/gemm_common.h
+++ b/dnn/src/fallback/matrix_mul/gemm_common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/gemm_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/gemm_impl.h b/dnn/src/fallback/matrix_mul/gemm_impl.h
index b25621e0..00ffbd3f 100644
--- a/dnn/src/fallback/matrix_mul/gemm_impl.h
+++ b/dnn/src/fallback/matrix_mul/gemm_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/gemm_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/gemv.h b/dnn/src/fallback/matrix_mul/gemv.h
index 5ea89270..3df47844 100644
--- a/dnn/src/fallback/matrix_mul/gemv.h
+++ b/dnn/src/fallback/matrix_mul/gemv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/gemv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/generic_strategy.cpp b/dnn/src/fallback/matrix_mul/generic_strategy.cpp
index 5db10857..dd11cbeb 100644
--- a/dnn/src/fallback/matrix_mul/generic_strategy.cpp
+++ b/dnn/src/fallback/matrix_mul/generic_strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/generic_strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/generic_strategy.h b/dnn/src/fallback/matrix_mul/generic_strategy.h
index 499a2161..3f30a74e 100644
--- a/dnn/src/fallback/matrix_mul/generic_strategy.h
+++ b/dnn/src/fallback/matrix_mul/generic_strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/generic_strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/opr_impl.cpp b/dnn/src/fallback/matrix_mul/opr_impl.cpp
index b576aa7f..09f1a164 100644
--- a/dnn/src/fallback/matrix_mul/opr_impl.cpp
+++ b/dnn/src/fallback/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul/opr_impl.h b/dnn/src/fallback/matrix_mul/opr_impl.h
index 74181cb8..eeedda3f 100644
--- a/dnn/src/fallback/matrix_mul/opr_impl.h
+++ b/dnn/src/fallback/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/matrix_mul_helper.h b/dnn/src/fallback/matrix_mul_helper.h
index 0b7f49ba..f43acc00 100644
--- a/dnn/src/fallback/matrix_mul_helper.h
+++ b/dnn/src/fallback/matrix_mul_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/matrix_mul_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/pooling/opr_impl.cpp b/dnn/src/fallback/pooling/opr_impl.cpp
index 29be71a8..65a5f988 100644
--- a/dnn/src/fallback/pooling/opr_impl.cpp
+++ b/dnn/src/fallback/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/pooling/opr_impl.h b/dnn/src/fallback/pooling/opr_impl.h
index 1d814c23..9dcfbd1c 100644
--- a/dnn/src/fallback/pooling/opr_impl.h
+++ b/dnn/src/fallback/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/powc/opr_impl.cpp b/dnn/src/fallback/powc/opr_impl.cpp
index 58640e49..a8559159 100644
--- a/dnn/src/fallback/powc/opr_impl.cpp
+++ b/dnn/src/fallback/powc/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/powc/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/powc/opr_impl.h b/dnn/src/fallback/powc/opr_impl.h
index b7437e4f..70b7e6a6 100644
--- a/dnn/src/fallback/powc/opr_impl.h
+++ b/dnn/src/fallback/powc/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/powc/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/reduce/opr_impl.cpp b/dnn/src/fallback/reduce/opr_impl.cpp
index 5e4ef0c4..13378012 100644
--- a/dnn/src/fallback/reduce/opr_impl.cpp
+++ b/dnn/src/fallback/reduce/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/reduce/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/reduce/opr_impl.h b/dnn/src/fallback/reduce/opr_impl.h
index e9b9ebd8..d6277078 100644
--- a/dnn/src/fallback/reduce/opr_impl.h
+++ b/dnn/src/fallback/reduce/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/reduce/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/relayout/opr_impl.cpp b/dnn/src/fallback/relayout/opr_impl.cpp
index 78a38910..56d20dae 100644
--- a/dnn/src/fallback/relayout/opr_impl.cpp
+++ b/dnn/src/fallback/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/relayout/opr_impl.h b/dnn/src/fallback/relayout/opr_impl.h
index f7a66ab1..ca3cd535 100644
--- a/dnn/src/fallback/relayout/opr_impl.h
+++ b/dnn/src/fallback/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/repeat/opr_impl.cpp b/dnn/src/fallback/repeat/opr_impl.cpp
index 28a9c38b..51b17094 100644
--- a/dnn/src/fallback/repeat/opr_impl.cpp
+++ b/dnn/src/fallback/repeat/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/repeat/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/repeat/opr_impl.h b/dnn/src/fallback/repeat/opr_impl.h
index 9b1139a3..c639fa0d 100644
--- a/dnn/src/fallback/repeat/opr_impl.h
+++ b/dnn/src/fallback/repeat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/repeat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/resize/opr_impl.cpp b/dnn/src/fallback/resize/opr_impl.cpp
index 9084c94e..f4802f99 100644
--- a/dnn/src/fallback/resize/opr_impl.cpp
+++ b/dnn/src/fallback/resize/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/resize/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/resize/opr_impl.h b/dnn/src/fallback/resize/opr_impl.h
index 6343632f..d384fe63 100644
--- a/dnn/src/fallback/resize/opr_impl.h
+++ b/dnn/src/fallback/resize/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/resize/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/roi_copy/opr_impl.cpp b/dnn/src/fallback/roi_copy/opr_impl.cpp
index 29bb2a01..43dfc314 100644
--- a/dnn/src/fallback/roi_copy/opr_impl.cpp
+++ b/dnn/src/fallback/roi_copy/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/roi_copy/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/roi_copy/opr_impl.h b/dnn/src/fallback/roi_copy/opr_impl.h
index 8cf2ffab..1221486b 100644
--- a/dnn/src/fallback/roi_copy/opr_impl.h
+++ b/dnn/src/fallback/roi_copy/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/roi_copy/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/rotate/opr_impl.cpp b/dnn/src/fallback/rotate/opr_impl.cpp
index cb43b164..7cfc07e6 100644
--- a/dnn/src/fallback/rotate/opr_impl.cpp
+++ b/dnn/src/fallback/rotate/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/rotate/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/rotate/opr_impl.h b/dnn/src/fallback/rotate/opr_impl.h
index d926ac8f..72b31527 100644
--- a/dnn/src/fallback/rotate/opr_impl.h
+++ b/dnn/src/fallback/rotate/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/rotate/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/split/opr_impl.cpp b/dnn/src/fallback/split/opr_impl.cpp
index 7152d4f7..5d385f01 100644
--- a/dnn/src/fallback/split/opr_impl.cpp
+++ b/dnn/src/fallback/split/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/split/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/split/opr_impl.h b/dnn/src/fallback/split/opr_impl.h
index 2ae8cbdf..12867900 100644
--- a/dnn/src/fallback/split/opr_impl.h
+++ b/dnn/src/fallback/split/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/split/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/tile/opr_impl.cpp b/dnn/src/fallback/tile/opr_impl.cpp
index f9a36a4d..68362372 100644
--- a/dnn/src/fallback/tile/opr_impl.cpp
+++ b/dnn/src/fallback/tile/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/tile/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/tile/opr_impl.h b/dnn/src/fallback/tile/opr_impl.h
index 58cc6885..5966fc1d 100644
--- a/dnn/src/fallback/tile/opr_impl.h
+++ b/dnn/src/fallback/tile/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/tile/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/type_cvt/opr_impl.cpp b/dnn/src/fallback/type_cvt/opr_impl.cpp
index e0105468..35406476 100644
--- a/dnn/src/fallback/type_cvt/opr_impl.cpp
+++ b/dnn/src/fallback/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/type_cvt/opr_impl.h b/dnn/src/fallback/type_cvt/opr_impl.h
index b54938f7..67ba791d 100644
--- a/dnn/src/fallback/type_cvt/opr_impl.h
+++ b/dnn/src/fallback/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/warp_perspective/opr_impl.cpp b/dnn/src/fallback/warp_perspective/opr_impl.cpp
index 61b6ba22..cb76f343 100644
--- a/dnn/src/fallback/warp_perspective/opr_impl.cpp
+++ b/dnn/src/fallback/warp_perspective/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/warp_perspective/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/fallback/warp_perspective/opr_impl.h b/dnn/src/fallback/warp_perspective/opr_impl.h
index 284e91b8..34113f86 100644
--- a/dnn/src/fallback/warp_perspective/opr_impl.h
+++ b/dnn/src/fallback/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/fallback/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/adaptive_pooling/opr_impl.cpp b/dnn/src/naive/adaptive_pooling/opr_impl.cpp
index 0d6f53e6..68355132 100644
--- a/dnn/src/naive/adaptive_pooling/opr_impl.cpp
+++ b/dnn/src/naive/adaptive_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/adaptive_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/adaptive_pooling/opr_impl.h b/dnn/src/naive/adaptive_pooling/opr_impl.h
index cb3bec17..8a2b55c9 100644
--- a/dnn/src/naive/adaptive_pooling/opr_impl.h
+++ b/dnn/src/naive/adaptive_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/adaptive_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/add_update/opr_impl.cpp b/dnn/src/naive/add_update/opr_impl.cpp
index a47a4e4b..40e064d2 100644
--- a/dnn/src/naive/add_update/opr_impl.cpp
+++ b/dnn/src/naive/add_update/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/add_update/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/add_update/opr_impl.h b/dnn/src/naive/add_update/opr_impl.h
index cd3abf3c..ecb34505 100644
--- a/dnn/src/naive/add_update/opr_impl.h
+++ b/dnn/src/naive/add_update/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/add_update/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/argmxx/opr_impl.cpp b/dnn/src/naive/argmxx/opr_impl.cpp
index 8cca17ae..7d003333 100644
--- a/dnn/src/naive/argmxx/opr_impl.cpp
+++ b/dnn/src/naive/argmxx/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/argmxx/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/argmxx/opr_impl.h b/dnn/src/naive/argmxx/opr_impl.h
index fc9b8081..114dd7a8 100644
--- a/dnn/src/naive/argmxx/opr_impl.h
+++ b/dnn/src/naive/argmxx/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/argmxx/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/argsort/opr_impl.cpp b/dnn/src/naive/argsort/opr_impl.cpp
index b0864731..3aba177e 100644
--- a/dnn/src/naive/argsort/opr_impl.cpp
+++ b/dnn/src/naive/argsort/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/argsort/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/argsort/opr_impl.h b/dnn/src/naive/argsort/opr_impl.h
index 71695556..d74cd72d 100644
--- a/dnn/src/naive/argsort/opr_impl.h
+++ b/dnn/src/naive/argsort/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/argsort/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batch_conv_bias/opr_impl.cpp b/dnn/src/naive/batch_conv_bias/opr_impl.cpp
index 7de57961..51efe2bf 100644
--- a/dnn/src/naive/batch_conv_bias/opr_impl.cpp
+++ b/dnn/src/naive/batch_conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batch_conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batch_conv_bias/opr_impl.h b/dnn/src/naive/batch_conv_bias/opr_impl.h
index 7a0fbc5c..1e82696d 100644
--- a/dnn/src/naive/batch_conv_bias/opr_impl.h
+++ b/dnn/src/naive/batch_conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batch_conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batch_normalization/opr_impl.cpp b/dnn/src/naive/batch_normalization/opr_impl.cpp
index 51e01f39..c944d4d4 100644
--- a/dnn/src/naive/batch_normalization/opr_impl.cpp
+++ b/dnn/src/naive/batch_normalization/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batch_normalization/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batch_normalization/opr_impl.h b/dnn/src/naive/batch_normalization/opr_impl.h
index f873cb15..ecaee7cc 100644
--- a/dnn/src/naive/batch_normalization/opr_impl.h
+++ b/dnn/src/naive/batch_normalization/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batch_normalization/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batched_matrix_mul/opr_impl.cpp b/dnn/src/naive/batched_matrix_mul/opr_impl.cpp
index 073a3ecb..bbd61660 100644
--- a/dnn/src/naive/batched_matrix_mul/opr_impl.cpp
+++ b/dnn/src/naive/batched_matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batched_matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/batched_matrix_mul/opr_impl.h b/dnn/src/naive/batched_matrix_mul/opr_impl.h
index 58dc718f..3b1a4411 100644
--- a/dnn/src/naive/batched_matrix_mul/opr_impl.h
+++ b/dnn/src/naive/batched_matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/batched_matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/checksum/opr_impl.cpp b/dnn/src/naive/checksum/opr_impl.cpp
index 96243ec3..23be4bd2 100644
--- a/dnn/src/naive/checksum/opr_impl.cpp
+++ b/dnn/src/naive/checksum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/checksum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/checksum/opr_impl.h b/dnn/src/naive/checksum/opr_impl.h
index 490b9b25..05011231 100644
--- a/dnn/src/naive/checksum/opr_impl.h
+++ b/dnn/src/naive/checksum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/checksum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/concat/concat.cpp b/dnn/src/naive/concat/concat.cpp
index 2fe8f802..f580672e 100644
--- a/dnn/src/naive/concat/concat.cpp
+++ b/dnn/src/naive/concat/concat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/concat/concat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/concat/opr_impl.h b/dnn/src/naive/concat/opr_impl.h
index 1516ec08..beacfb66 100644
--- a/dnn/src/naive/concat/opr_impl.h
+++ b/dnn/src/naive/concat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/concat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cond_take/opr_impl.cpp b/dnn/src/naive/cond_take/opr_impl.cpp
index 39fba5ab..911add8e 100644
--- a/dnn/src/naive/cond_take/opr_impl.cpp
+++ b/dnn/src/naive/cond_take/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/cond_take/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cond_take/opr_impl.h b/dnn/src/naive/cond_take/opr_impl.h
index 5cf57f60..de217867 100644
--- a/dnn/src/naive/cond_take/opr_impl.h
+++ b/dnn/src/naive/cond_take/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/cond_take/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/conv_bias/opr_impl.cpp b/dnn/src/naive/conv_bias/opr_impl.cpp
index 005f5151..9c9a12e3 100644
--- a/dnn/src/naive/conv_bias/opr_impl.cpp
+++ b/dnn/src/naive/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/conv_bias/opr_impl.h b/dnn/src/naive/conv_bias/opr_impl.h
index 47b9d4c6..982a2a7d 100644
--- a/dnn/src/naive/conv_bias/opr_impl.h
+++ b/dnn/src/naive/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution/algorithms.h b/dnn/src/naive/convolution/algorithms.h
index 6ed1ba52..11bfa8a0 100644
--- a/dnn/src/naive/convolution/algorithms.h
+++ b/dnn/src/naive/convolution/algorithms.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution/algorithms.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution/convolution.cpp b/dnn/src/naive/convolution/convolution.cpp
index 134c6f0a..aa8ec34d 100644
--- a/dnn/src/naive/convolution/convolution.cpp
+++ b/dnn/src/naive/convolution/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution/helper.h b/dnn/src/naive/convolution/helper.h
index f490f23a..65617c5c 100644
--- a/dnn/src/naive/convolution/helper.h
+++ b/dnn/src/naive/convolution/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution/opr_impl.h b/dnn/src/naive/convolution/opr_impl.h
index b3d9a4d1..a7427f01 100644
--- a/dnn/src/naive/convolution/opr_impl.h
+++ b/dnn/src/naive/convolution/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution3d/algorithms.h b/dnn/src/naive/convolution3d/algorithms.h
index 4d7652cb..74101ec9 100644
--- a/dnn/src/naive/convolution3d/algorithms.h
+++ b/dnn/src/naive/convolution3d/algorithms.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution3d/algorithms.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution3d/convolution3d.cpp b/dnn/src/naive/convolution3d/convolution3d.cpp
index ab91771c..81aca98c 100644
--- a/dnn/src/naive/convolution3d/convolution3d.cpp
+++ b/dnn/src/naive/convolution3d/convolution3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution3d/convolution3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution3d/helper.h b/dnn/src/naive/convolution3d/helper.h
index c5b9b42c..478eda5d 100644
--- a/dnn/src/naive/convolution3d/helper.h
+++ b/dnn/src/naive/convolution3d/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution3d/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convolution3d/opr_impl.h b/dnn/src/naive/convolution3d/opr_impl.h
index 1e4800d3..da1830dc 100644
--- a/dnn/src/naive/convolution3d/opr_impl.h
+++ b/dnn/src/naive/convolution3d/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convolution3d/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convpooling/conv_pooling.cpp b/dnn/src/naive/convpooling/conv_pooling.cpp
index d91e52ef..b107ae0b 100644
--- a/dnn/src/naive/convpooling/conv_pooling.cpp
+++ b/dnn/src/naive/convpooling/conv_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convpooling/conv_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/convpooling/opr_impl.h b/dnn/src/naive/convpooling/opr_impl.h
index 02849b26..597c7f10 100644
--- a/dnn/src/naive/convpooling/opr_impl.h
+++ b/dnn/src/naive/convpooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/convpooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cumsum/opr_impl.cpp b/dnn/src/naive/cumsum/opr_impl.cpp
index 01cd4091..69ce005b 100644
--- a/dnn/src/naive/cumsum/opr_impl.cpp
+++ b/dnn/src/naive/cumsum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/cumsum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cumsum/opr_impl.h b/dnn/src/naive/cumsum/opr_impl.h
index 133ad0fe..9aafff4d 100644
--- a/dnn/src/naive/cumsum/opr_impl.h
+++ b/dnn/src/naive/cumsum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/cumsum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cvt_color/opr_impl.cpp b/dnn/src/naive/cvt_color/opr_impl.cpp
index 939aaf7c..4e49f006 100644
--- a/dnn/src/naive/cvt_color/opr_impl.cpp
+++ b/dnn/src/naive/cvt_color/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/cvt_color/opr_impl.h b/dnn/src/naive/cvt_color/opr_impl.h
index 90b3c579..df7c96f5 100644
--- a/dnn/src/naive/cvt_color/opr_impl.h
+++ b/dnn/src/naive/cvt_color/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/cvt_color/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/dct/opr_impl.cpp b/dnn/src/naive/dct/opr_impl.cpp
index 3b93305c..aed3394c 100644
--- a/dnn/src/naive/dct/opr_impl.cpp
+++ b/dnn/src/naive/dct/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/dct/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/dct/opr_impl.h b/dnn/src/naive/dct/opr_impl.h
index e0d1405e..1cd4ce39 100644
--- a/dnn/src/naive/dct/opr_impl.h
+++ b/dnn/src/naive/dct/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/dct/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/deformable_conv/opr_impl.cpp b/dnn/src/naive/deformable_conv/opr_impl.cpp
index 90c4bb17..41135e33 100644
--- a/dnn/src/naive/deformable_conv/opr_impl.cpp
+++ b/dnn/src/naive/deformable_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/deformable_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/deformable_conv/opr_impl.h b/dnn/src/naive/deformable_conv/opr_impl.h
index 50886904..77d3786a 100644
--- a/dnn/src/naive/deformable_conv/opr_impl.h
+++ b/dnn/src/naive/deformable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/deformable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.cpp b/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.cpp
index e8c04fa2..1f728e3d 100644
--- a/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.cpp
+++ b/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/deformable_ps_roi_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.h b/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.h
index 65e8ba4d..c770cb5a 100644
--- a/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.h
+++ b/dnn/src/naive/deformable_ps_roi_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/deformable_ps_roi_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/dot/opr_impl.cpp b/dnn/src/naive/dot/opr_impl.cpp
index 34d55384..68e35f9d 100644
--- a/dnn/src/naive/dot/opr_impl.cpp
+++ b/dnn/src/naive/dot/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/dot/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/dot/opr_impl.h b/dnn/src/naive/dot/opr_impl.h
index 8194449d..3ed8799f 100644
--- a/dnn/src/naive/dot/opr_impl.h
+++ b/dnn/src/naive/dot/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/dot/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise/kern_caller.h b/dnn/src/naive/elemwise/kern_caller.h
index af6b622b..ad71c882 100644
--- a/dnn/src/naive/elemwise/kern_caller.h
+++ b/dnn/src/naive/elemwise/kern_caller.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise/kern_caller.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise/kern_impl.inl b/dnn/src/naive/elemwise/kern_impl.inl
index f94b6251..7bd91263 100644
--- a/dnn/src/naive/elemwise/kern_impl.inl
+++ b/dnn/src/naive/elemwise/kern_impl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise/kern_impl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise/opr_impl.cpp b/dnn/src/naive/elemwise/opr_impl.cpp
index bdb46602..8af6b735 100644
--- a/dnn/src/naive/elemwise/opr_impl.cpp
+++ b/dnn/src/naive/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise/opr_impl.h b/dnn/src/naive/elemwise/opr_impl.h
index 523c9712..52b43887 100644
--- a/dnn/src/naive/elemwise/opr_impl.h
+++ b/dnn/src/naive/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise_multi_type/opr_impl.cpp b/dnn/src/naive/elemwise_multi_type/opr_impl.cpp
index 83269b1a..328cacf0 100644
--- a/dnn/src/naive/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/naive/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/elemwise_multi_type/opr_impl.h b/dnn/src/naive/elemwise_multi_type/opr_impl.h
index 5d2e7ce2..c180d479 100644
--- a/dnn/src/naive/elemwise_multi_type/opr_impl.h
+++ b/dnn/src/naive/elemwise_multi_type/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/elemwise_multi_type/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/eye/opr_impl.cpp b/dnn/src/naive/eye/opr_impl.cpp
index 69df989b..bd76813b 100644
--- a/dnn/src/naive/eye/opr_impl.cpp
+++ b/dnn/src/naive/eye/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/eye/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/eye/opr_impl.h b/dnn/src/naive/eye/opr_impl.h
index dd99243c..5838a0dd 100644
--- a/dnn/src/naive/eye/opr_impl.h
+++ b/dnn/src/naive/eye/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/eye/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/fake_quant/opr_impl.cpp b/dnn/src/naive/fake_quant/opr_impl.cpp
index d9262e81..ce153feb 100644
--- a/dnn/src/naive/fake_quant/opr_impl.cpp
+++ b/dnn/src/naive/fake_quant/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/fakequant/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/fake_quant/opr_impl.h b/dnn/src/naive/fake_quant/opr_impl.h
index 8353edd3..59cc11fa 100644
--- a/dnn/src/naive/fake_quant/opr_impl.h
+++ b/dnn/src/naive/fake_quant/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/fakequant/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/flip/opr_impl.cpp b/dnn/src/naive/flip/opr_impl.cpp
index af34852a..bd89e943 100644
--- a/dnn/src/naive/flip/opr_impl.cpp
+++ b/dnn/src/naive/flip/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/flip/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/flip/opr_impl.h b/dnn/src/naive/flip/opr_impl.h
index 889b4dc2..ac9c03f2 100644
--- a/dnn/src/naive/flip/opr_impl.h
+++ b/dnn/src/naive/flip/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/flip/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/gaussian_blur/opr_impl.cpp b/dnn/src/naive/gaussian_blur/opr_impl.cpp
index fb10cd67..757134d3 100644
--- a/dnn/src/naive/gaussian_blur/opr_impl.cpp
+++ b/dnn/src/naive/gaussian_blur/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/gaussian_blur/opr_impl.h b/dnn/src/naive/gaussian_blur/opr_impl.h
index 18b2f12a..0c4abe2f 100644
--- a/dnn/src/naive/gaussian_blur/opr_impl.h
+++ b/dnn/src/naive/gaussian_blur/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/gaussian_blur/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/group_local/opr_impl.cpp b/dnn/src/naive/group_local/opr_impl.cpp
index 7206f14b..d1f1a0aa 100644
--- a/dnn/src/naive/group_local/opr_impl.cpp
+++ b/dnn/src/naive/group_local/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/group_local/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/group_local/opr_impl.h b/dnn/src/naive/group_local/opr_impl.h
index 8ab4187a..a60e612b 100644
--- a/dnn/src/naive/group_local/opr_impl.h
+++ b/dnn/src/naive/group_local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/group_local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/handle.cpp b/dnn/src/naive/handle.cpp
index a2c210f3..0e936d7b 100644
--- a/dnn/src/naive/handle.cpp
+++ b/dnn/src/naive/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/handle.h b/dnn/src/naive/handle.h
index 27bc57ec..d687d0b1 100644
--- a/dnn/src/naive/handle.h
+++ b/dnn/src/naive/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/images2neibs/opr_impl.cpp b/dnn/src/naive/images2neibs/opr_impl.cpp
index aaa1ae04..20d77941 100644
--- a/dnn/src/naive/images2neibs/opr_impl.cpp
+++ b/dnn/src/naive/images2neibs/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/images2neibs/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/images2neibs/opr_impl.h b/dnn/src/naive/images2neibs/opr_impl.h
index 6ea4810a..f9dfc45a 100644
--- a/dnn/src/naive/images2neibs/opr_impl.h
+++ b/dnn/src/naive/images2neibs/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/images2neibs/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/indexing_multi_axis_vec/opr_impl.cpp b/dnn/src/naive/indexing_multi_axis_vec/opr_impl.cpp
index 16ca74b0..e52b8d56 100644
--- a/dnn/src/naive/indexing_multi_axis_vec/opr_impl.cpp
+++ b/dnn/src/naive/indexing_multi_axis_vec/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/indexing_multi_axis_vec/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/indexing_multi_axis_vec/opr_impl.h b/dnn/src/naive/indexing_multi_axis_vec/opr_impl.h
index c8e7a950..474fc307 100644
--- a/dnn/src/naive/indexing_multi_axis_vec/opr_impl.h
+++ b/dnn/src/naive/indexing_multi_axis_vec/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/indexing_multi_axis_vec/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/indexing_one_hot/opr_impl.cpp b/dnn/src/naive/indexing_one_hot/opr_impl.cpp
index de5b85e7..b4c6a8ac 100644
--- a/dnn/src/naive/indexing_one_hot/opr_impl.cpp
+++ b/dnn/src/naive/indexing_one_hot/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/indexing_one_hot/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/indexing_one_hot/opr_impl.h b/dnn/src/naive/indexing_one_hot/opr_impl.h
index f6956d53..275d8f15 100644
--- a/dnn/src/naive/indexing_one_hot/opr_impl.h
+++ b/dnn/src/naive/indexing_one_hot/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/indexing_one_hot/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/linspace/opr_impl.cpp b/dnn/src/naive/linspace/opr_impl.cpp
index 236bd744..32974e94 100644
--- a/dnn/src/naive/linspace/opr_impl.cpp
+++ b/dnn/src/naive/linspace/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/linspace/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/linspace/opr_impl.h b/dnn/src/naive/linspace/opr_impl.h
index 881f04bb..29b917ad 100644
--- a/dnn/src/naive/linspace/opr_impl.h
+++ b/dnn/src/naive/linspace/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/linspace/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/local/local.cpp b/dnn/src/naive/local/local.cpp
index 3419d174..1b70afaa 100644
--- a/dnn/src/naive/local/local.cpp
+++ b/dnn/src/naive/local/local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/local/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/local/opr_impl.h b/dnn/src/naive/local/opr_impl.h
index c62c4bec..92c31350 100644
--- a/dnn/src/naive/local/opr_impl.h
+++ b/dnn/src/naive/local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/local_share/algorithms.h b/dnn/src/naive/local_share/algorithms.h
index fb52c21d..09d40536 100644
--- a/dnn/src/naive/local_share/algorithms.h
+++ b/dnn/src/naive/local_share/algorithms.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/local_share/algorithms.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/local_share/opr_impl.cpp b/dnn/src/naive/local_share/opr_impl.cpp
index 4be1554e..ba3413dc 100644
--- a/dnn/src/naive/local_share/opr_impl.cpp
+++ b/dnn/src/naive/local_share/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/local_share/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/local_share/opr_impl.h b/dnn/src/naive/local_share/opr_impl.h
index 6d8b26ef..591ee9be 100644
--- a/dnn/src/naive/local_share/opr_impl.h
+++ b/dnn/src/naive/local_share/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/local_share/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/lowbit_utils.cpp b/dnn/src/naive/lowbit_utils.cpp
index 47798330..786fed21 100644
--- a/dnn/src/naive/lowbit_utils.cpp
+++ b/dnn/src/naive/lowbit_utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/lowbit_utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/lowbit_utils.h b/dnn/src/naive/lowbit_utils.h
index 587b99d9..f4d99e51 100644
--- a/dnn/src/naive/lowbit_utils.h
+++ b/dnn/src/naive/lowbit_utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/lowbit_utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/lrn/opr_impl.cpp b/dnn/src/naive/lrn/opr_impl.cpp
index f4994eea..78e25dd1 100644
--- a/dnn/src/naive/lrn/opr_impl.cpp
+++ b/dnn/src/naive/lrn/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/lrn/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/lrn/opr_impl.h b/dnn/src/naive/lrn/opr_impl.h
index 9281200a..6934ef98 100644
--- a/dnn/src/naive/lrn/opr_impl.h
+++ b/dnn/src/naive/lrn/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/lrn/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/mask_conv/opr_impl.cpp b/dnn/src/naive/mask_conv/opr_impl.cpp
index aa931f7a..f69f3643 100644
--- a/dnn/src/naive/mask_conv/opr_impl.cpp
+++ b/dnn/src/naive/mask_conv/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/mask_conv/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/mask_conv/opr_impl.h b/dnn/src/naive/mask_conv/opr_impl.h
index 5ce2fb70..1b02319b 100644
--- a/dnn/src/naive/mask_conv/opr_impl.h
+++ b/dnn/src/naive/mask_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/mask_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/matrix_inverse/opr_impl.cpp b/dnn/src/naive/matrix_inverse/opr_impl.cpp
index 261ee2a5..f790881c 100644
--- a/dnn/src/naive/matrix_inverse/opr_impl.cpp
+++ b/dnn/src/naive/matrix_inverse/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/matrix_inverse/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/matrix_inverse/opr_impl.h b/dnn/src/naive/matrix_inverse/opr_impl.h
index 391caf68..cb984337 100644
--- a/dnn/src/naive/matrix_inverse/opr_impl.h
+++ b/dnn/src/naive/matrix_inverse/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/matrix_inverse/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/matrix_mul/matrix_mul_helper.h b/dnn/src/naive/matrix_mul/matrix_mul_helper.h
index bfa227bc..9ef5c484 100644
--- a/dnn/src/naive/matrix_mul/matrix_mul_helper.h
+++ b/dnn/src/naive/matrix_mul/matrix_mul_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/matrix_mul/matrix_mul_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/matrix_mul/opr_impl.cpp b/dnn/src/naive/matrix_mul/opr_impl.cpp
index 5141ea35..0b01c654 100644
--- a/dnn/src/naive/matrix_mul/opr_impl.cpp
+++ b/dnn/src/naive/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/matrix_mul/opr_impl.h b/dnn/src/naive/matrix_mul/opr_impl.h
index 6ed0c72f..6c0416e2 100644
--- a/dnn/src/naive/matrix_mul/opr_impl.h
+++ b/dnn/src/naive/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/max_tensor_diff/opr_impl.cpp b/dnn/src/naive/max_tensor_diff/opr_impl.cpp
index 3552de00..b2e3a976 100644
--- a/dnn/src/naive/max_tensor_diff/opr_impl.cpp
+++ b/dnn/src/naive/max_tensor_diff/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/max_tensor_diff/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/max_tensor_diff/opr_impl.h b/dnn/src/naive/max_tensor_diff/opr_impl.h
index 893507f4..c8aebb44 100644
--- a/dnn/src/naive/max_tensor_diff/opr_impl.h
+++ b/dnn/src/naive/max_tensor_diff/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/max_tensor_diff/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/mesh_indexing/opr_impl.cpp b/dnn/src/naive/mesh_indexing/opr_impl.cpp
index 05984602..95e166d4 100644
--- a/dnn/src/naive/mesh_indexing/opr_impl.cpp
+++ b/dnn/src/naive/mesh_indexing/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/mesh_indexing/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/mesh_indexing/opr_impl.h b/dnn/src/naive/mesh_indexing/opr_impl.h
index 8fe2aed5..1cba0d61 100644
--- a/dnn/src/naive/mesh_indexing/opr_impl.h
+++ b/dnn/src/naive/mesh_indexing/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/mesh_indexing/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/param_pack/opr_impl.cpp b/dnn/src/naive/param_pack/opr_impl.cpp
index c457c99e..668a8cb0 100644
--- a/dnn/src/naive/param_pack/opr_impl.cpp
+++ b/dnn/src/naive/param_pack/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/param_pack/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/param_pack/opr_impl.h b/dnn/src/naive/param_pack/opr_impl.h
index 0d0e1545..c92b1ee9 100644
--- a/dnn/src/naive/param_pack/opr_impl.h
+++ b/dnn/src/naive/param_pack/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/param_pack/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/pooling/opr_impl.cpp b/dnn/src/naive/pooling/opr_impl.cpp
index c2d7d8e7..834649b8 100644
--- a/dnn/src/naive/pooling/opr_impl.cpp
+++ b/dnn/src/naive/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/pooling/opr_impl.h b/dnn/src/naive/pooling/opr_impl.h
index 19ff371b..ed56fb64 100644
--- a/dnn/src/naive/pooling/opr_impl.h
+++ b/dnn/src/naive/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/powc/opr_impl.cpp b/dnn/src/naive/powc/opr_impl.cpp
index 61e052c4..6cf28fa9 100644
--- a/dnn/src/naive/powc/opr_impl.cpp
+++ b/dnn/src/naive/powc/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/powc/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/powc/opr_impl.h b/dnn/src/naive/powc/opr_impl.h
index 40c0e941..9631aaf7 100644
--- a/dnn/src/naive/powc/opr_impl.h
+++ b/dnn/src/naive/powc/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/powc/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/reduce/opr_impl.cpp b/dnn/src/naive/reduce/opr_impl.cpp
index ce5e8096..d59bbcbf 100644
--- a/dnn/src/naive/reduce/opr_impl.cpp
+++ b/dnn/src/naive/reduce/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/reduce/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/reduce/opr_impl.h b/dnn/src/naive/reduce/opr_impl.h
index 8ffb0771..76f6ab56 100644
--- a/dnn/src/naive/reduce/opr_impl.h
+++ b/dnn/src/naive/reduce/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/reduce/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/relayout/opr_impl.cpp b/dnn/src/naive/relayout/opr_impl.cpp
index 141649a1..dfc0a095 100644
--- a/dnn/src/naive/relayout/opr_impl.cpp
+++ b/dnn/src/naive/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/relayout/opr_impl.h b/dnn/src/naive/relayout/opr_impl.h
index 19f6af78..59bd4dc4 100644
--- a/dnn/src/naive/relayout/opr_impl.h
+++ b/dnn/src/naive/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/relayout_format/opr_impl.cpp b/dnn/src/naive/relayout_format/opr_impl.cpp
index 44725340..d970696f 100644
--- a/dnn/src/naive/relayout_format/opr_impl.cpp
+++ b/dnn/src/naive/relayout_format/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/relayout_format/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/relayout_format/opr_impl.h b/dnn/src/naive/relayout_format/opr_impl.h
index b29cd7a0..d8fdcf4a 100644
--- a/dnn/src/naive/relayout_format/opr_impl.h
+++ b/dnn/src/naive/relayout_format/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/relayout_format/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/remap/opr_impl.cpp b/dnn/src/naive/remap/opr_impl.cpp
index 26758156..f03a147c 100644
--- a/dnn/src/naive/remap/opr_impl.cpp
+++ b/dnn/src/naive/remap/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/remap/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/remap/opr_impl.h b/dnn/src/naive/remap/opr_impl.h
index a5f20d4c..998f02a1 100644
--- a/dnn/src/naive/remap/opr_impl.h
+++ b/dnn/src/naive/remap/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/remap/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/repeat/opr_impl.h b/dnn/src/naive/repeat/opr_impl.h
index 0fccd6fc..12b860d0 100644
--- a/dnn/src/naive/repeat/opr_impl.h
+++ b/dnn/src/naive/repeat/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/repeat/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/repeat/repeat.cpp b/dnn/src/naive/repeat/repeat.cpp
index fd59a903..7a1c6fb3 100644
--- a/dnn/src/naive/repeat/repeat.cpp
+++ b/dnn/src/naive/repeat/repeat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/repeat/repeat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/resize/opr_impl.cpp b/dnn/src/naive/resize/opr_impl.cpp
index 85087e07..a13df34c 100644
--- a/dnn/src/naive/resize/opr_impl.cpp
+++ b/dnn/src/naive/resize/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/resize/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/resize/opr_impl.h b/dnn/src/naive/resize/opr_impl.h
index 21426377..eef25111 100644
--- a/dnn/src/naive/resize/opr_impl.h
+++ b/dnn/src/naive/resize/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/resize/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/resize/resize_cv.cpp b/dnn/src/naive/resize/resize_cv.cpp
index c36ed067..ab5aa701 100644
--- a/dnn/src/naive/resize/resize_cv.cpp
+++ b/dnn/src/naive/resize/resize_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/resize/resize_cv.h b/dnn/src/naive/resize/resize_cv.h
index 0fa4b03f..c8b91e95 100644
--- a/dnn/src/naive/resize/resize_cv.h
+++ b/dnn/src/naive/resize/resize_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/resize/resize_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/rng/opr_impl.cpp b/dnn/src/naive/rng/opr_impl.cpp
index 6ceb2858..97c9bd0c 100644
--- a/dnn/src/naive/rng/opr_impl.cpp
+++ b/dnn/src/naive/rng/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/rng/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/rng/opr_impl.h b/dnn/src/naive/rng/opr_impl.h
index 801a319c..6370843c 100644
--- a/dnn/src/naive/rng/opr_impl.h
+++ b/dnn/src/naive/rng/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/rng/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_align/opr_impl.cpp b/dnn/src/naive/roi_align/opr_impl.cpp
index e2213c49..a3576818 100644
--- a/dnn/src/naive/roi_align/opr_impl.cpp
+++ b/dnn/src/naive/roi_align/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_align/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_align/opr_impl.h b/dnn/src/naive/roi_align/opr_impl.h
index 768a558f..641bd4f7 100644
--- a/dnn/src/naive/roi_align/opr_impl.h
+++ b/dnn/src/naive/roi_align/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_align/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_copy/opr_impl.cpp b/dnn/src/naive/roi_copy/opr_impl.cpp
index 350585ff..4fe92407 100644
--- a/dnn/src/naive/roi_copy/opr_impl.cpp
+++ b/dnn/src/naive/roi_copy/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_copy/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_copy/opr_impl.h b/dnn/src/naive/roi_copy/opr_impl.h
index 785405e1..3bcf8a1b 100644
--- a/dnn/src/naive/roi_copy/opr_impl.h
+++ b/dnn/src/naive/roi_copy/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_copy/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_pooling/opr_impl.cpp b/dnn/src/naive/roi_pooling/opr_impl.cpp
index a5b29ccf..d989c2f1 100644
--- a/dnn/src/naive/roi_pooling/opr_impl.cpp
+++ b/dnn/src/naive/roi_pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/roi_pooling/opr_impl.h b/dnn/src/naive/roi_pooling/opr_impl.h
index ca1e136d..8b8a986a 100644
--- a/dnn/src/naive/roi_pooling/opr_impl.h
+++ b/dnn/src/naive/roi_pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/roi_pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/rotate/opr_impl.cpp b/dnn/src/naive/rotate/opr_impl.cpp
index 0cc0f5a8..a213071a 100644
--- a/dnn/src/naive/rotate/opr_impl.cpp
+++ b/dnn/src/naive/rotate/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/rotate/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/rotate/opr_impl.h b/dnn/src/naive/rotate/opr_impl.h
index ba610c65..e597b400 100644
--- a/dnn/src/naive/rotate/opr_impl.h
+++ b/dnn/src/naive/rotate/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/rotate/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/separable_conv/opr_impl.cpp b/dnn/src/naive/separable_conv/opr_impl.cpp
index b2630eed..aa095611 100644
--- a/dnn/src/naive/separable_conv/opr_impl.cpp
+++ b/dnn/src/naive/separable_conv/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/separable_conv/opr_impl.h b/dnn/src/naive/separable_conv/opr_impl.h
index e69f31ce..deaae3d6 100644
--- a/dnn/src/naive/separable_conv/opr_impl.h
+++ b/dnn/src/naive/separable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/separable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/separable_filter/opr_impl.cpp b/dnn/src/naive/separable_filter/opr_impl.cpp
index 31362433..69e387ec 100644
--- a/dnn/src/naive/separable_filter/opr_impl.cpp
+++ b/dnn/src/naive/separable_filter/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/separable_filter/opr_impl.h b/dnn/src/naive/separable_filter/opr_impl.h
index 5605e567..dbba93a3 100644
--- a/dnn/src/naive/separable_filter/opr_impl.h
+++ b/dnn/src/naive/separable_filter/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/separable_filter/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/sleep/opr_impl.cpp b/dnn/src/naive/sleep/opr_impl.cpp
index 83776669..db1c167d 100644
--- a/dnn/src/naive/sleep/opr_impl.cpp
+++ b/dnn/src/naive/sleep/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/sleep/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/sleep/opr_impl.h b/dnn/src/naive/sleep/opr_impl.h
index b136c95f..bb08322f 100644
--- a/dnn/src/naive/sleep/opr_impl.h
+++ b/dnn/src/naive/sleep/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/sleep/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/split/opr_impl.h b/dnn/src/naive/split/opr_impl.h
index c89ed1b3..5a5c5eeb 100644
--- a/dnn/src/naive/split/opr_impl.h
+++ b/dnn/src/naive/split/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/split/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/split/split.cpp b/dnn/src/naive/split/split.cpp
index 388561b0..c24be293 100644
--- a/dnn/src/naive/split/split.cpp
+++ b/dnn/src/naive/split/split.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/split/split.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/svd/opr_impl.cpp b/dnn/src/naive/svd/opr_impl.cpp
index 1b7da5d9..1db18035 100644
--- a/dnn/src/naive/svd/opr_impl.cpp
+++ b/dnn/src/naive/svd/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/svd/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/svd/opr_impl.h b/dnn/src/naive/svd/opr_impl.h
index 3c2518ae..0e2c9764 100644
--- a/dnn/src/naive/svd/opr_impl.h
+++ b/dnn/src/naive/svd/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/svd/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tensor_remap/opr_impl.cpp b/dnn/src/naive/tensor_remap/opr_impl.cpp
index 93c11e4d..81c03ce2 100644
--- a/dnn/src/naive/tensor_remap/opr_impl.cpp
+++ b/dnn/src/naive/tensor_remap/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tensor_remap/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tensor_remap/opr_impl.h b/dnn/src/naive/tensor_remap/opr_impl.h
index f2595ef4..520a05c0 100644
--- a/dnn/src/naive/tensor_remap/opr_impl.h
+++ b/dnn/src/naive/tensor_remap/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tensor_remap/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tile/opr_impl.h b/dnn/src/naive/tile/opr_impl.h
index 01b84ab8..d71de732 100644
--- a/dnn/src/naive/tile/opr_impl.h
+++ b/dnn/src/naive/tile/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tile/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tile/tile.cpp b/dnn/src/naive/tile/tile.cpp
index 1e972939..5d565ed2 100644
--- a/dnn/src/naive/tile/tile.cpp
+++ b/dnn/src/naive/tile/tile.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tile/tile.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/topk/opr_impl.cpp b/dnn/src/naive/topk/opr_impl.cpp
index be5ac8d3..0fecffc2 100644
--- a/dnn/src/naive/topk/opr_impl.cpp
+++ b/dnn/src/naive/topk/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/topk/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/topk/opr_impl.h b/dnn/src/naive/topk/opr_impl.h
index 837f62af..0a0b78a4 100644
--- a/dnn/src/naive/topk/opr_impl.h
+++ b/dnn/src/naive/topk/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/topk/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tqt/opr_impl.cpp b/dnn/src/naive/tqt/opr_impl.cpp
index beb0a733..c2746f67 100644
--- a/dnn/src/naive/tqt/opr_impl.cpp
+++ b/dnn/src/naive/tqt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tqt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/tqt/opr_impl.h b/dnn/src/naive/tqt/opr_impl.h
index 100d7511..530dde57 100644
--- a/dnn/src/naive/tqt/opr_impl.h
+++ b/dnn/src/naive/tqt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/tqt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/transpose/opr_impl.cpp b/dnn/src/naive/transpose/opr_impl.cpp
index 2aab347d..9e48bfdf 100644
--- a/dnn/src/naive/transpose/opr_impl.cpp
+++ b/dnn/src/naive/transpose/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/transpose/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/transpose/opr_impl.h b/dnn/src/naive/transpose/opr_impl.h
index e0ad3c08..3cc26fde 100644
--- a/dnn/src/naive/transpose/opr_impl.h
+++ b/dnn/src/naive/transpose/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/transpose/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/type_cvt/opr_impl.cpp b/dnn/src/naive/type_cvt/opr_impl.cpp
index 87f6133a..e44ea808 100644
--- a/dnn/src/naive/type_cvt/opr_impl.cpp
+++ b/dnn/src/naive/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/type_cvt/opr_impl.h b/dnn/src/naive/type_cvt/opr_impl.h
index a74093af..7d3cddff 100644
--- a/dnn/src/naive/type_cvt/opr_impl.h
+++ b/dnn/src/naive/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_affine/opr_impl.cpp b/dnn/src/naive/warp_affine/opr_impl.cpp
index 3517c2b0..87a9f415 100644
--- a/dnn/src/naive/warp_affine/opr_impl.cpp
+++ b/dnn/src/naive/warp_affine/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_affine/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_affine/opr_impl.h b/dnn/src/naive/warp_affine/opr_impl.h
index d99cb1ea..a7ce86de 100644
--- a/dnn/src/naive/warp_affine/opr_impl.h
+++ b/dnn/src/naive/warp_affine/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_affine/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_affine/warp_affine_cv.cpp b/dnn/src/naive/warp_affine/warp_affine_cv.cpp
index 902cf08b..3fec2883 100644
--- a/dnn/src/naive/warp_affine/warp_affine_cv.cpp
+++ b/dnn/src/naive/warp_affine/warp_affine_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_affine/warp_affine_cv.h b/dnn/src/naive/warp_affine/warp_affine_cv.h
index 98522c07..1013b5be 100644
--- a/dnn/src/naive/warp_affine/warp_affine_cv.h
+++ b/dnn/src/naive/warp_affine/warp_affine_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_affine/warp_affine_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_perspective/opr_impl.cpp b/dnn/src/naive/warp_perspective/opr_impl.cpp
index 370b8dd9..701562d7 100644
--- a/dnn/src/naive/warp_perspective/opr_impl.cpp
+++ b/dnn/src/naive/warp_perspective/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_perspective/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_perspective/opr_impl.h b/dnn/src/naive/warp_perspective/opr_impl.h
index 4652c568..01967b26 100644
--- a/dnn/src/naive/warp_perspective/opr_impl.h
+++ b/dnn/src/naive/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_perspective/warp_perspective_cv.cpp b/dnn/src/naive/warp_perspective/warp_perspective_cv.cpp
index 82f34d06..3bda03f4 100644
--- a/dnn/src/naive/warp_perspective/warp_perspective_cv.cpp
+++ b/dnn/src/naive/warp_perspective/warp_perspective_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/naive/warp_perspective/warp_perspective_cv.h b/dnn/src/naive/warp_perspective/warp_perspective_cv.h
index 131a4e11..2710dce2 100644
--- a/dnn/src/naive/warp_perspective/warp_perspective_cv.h
+++ b/dnn/src/naive/warp_perspective/warp_perspective_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/naive/warp_perspective/warp_perspective_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/add_update/opr_impl.cpp b/dnn/src/rocm/add_update/opr_impl.cpp
index 36230ead..588ff758 100644
--- a/dnn/src/rocm/add_update/opr_impl.cpp
+++ b/dnn/src/rocm/add_update/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/add_update/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/add_update/opr_impl.h b/dnn/src/rocm/add_update/opr_impl.h
index 28babaa6..ec9eeb92 100644
--- a/dnn/src/rocm/add_update/opr_impl.h
+++ b/dnn/src/rocm/add_update/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/add_update/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/argmxx/opr_impl.cpp b/dnn/src/rocm/argmxx/opr_impl.cpp
index b61ac2b3..85e94b1d 100644
--- a/dnn/src/rocm/argmxx/opr_impl.cpp
+++ b/dnn/src/rocm/argmxx/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/argmxx/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/argmxx/opr_impl.h b/dnn/src/rocm/argmxx/opr_impl.h
index 54cf198f..3bec3975 100644
--- a/dnn/src/rocm/argmxx/opr_impl.h
+++ b/dnn/src/rocm/argmxx/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/argmxx/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batch_normalization/opr_impl.cpp b/dnn/src/rocm/batch_normalization/opr_impl.cpp
index 090854d1..f23ebb27 100644
--- a/dnn/src/rocm/batch_normalization/opr_impl.cpp
+++ b/dnn/src/rocm/batch_normalization/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batch_normalization/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batch_normalization/opr_impl.h b/dnn/src/rocm/batch_normalization/opr_impl.h
index 1bae0bd5..2c426796 100644
--- a/dnn/src/rocm/batch_normalization/opr_impl.h
+++ b/dnn/src/rocm/batch_normalization/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batch_normalization/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batched_matrix_mul/algos.cpp b/dnn/src/rocm/batched_matrix_mul/algos.cpp
index 431dfe5a..4bb75e5c 100644
--- a/dnn/src/rocm/batched_matrix_mul/algos.cpp
+++ b/dnn/src/rocm/batched_matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batched_matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batched_matrix_mul/algos.h b/dnn/src/rocm/batched_matrix_mul/algos.h
index de2d158a..626f71b9 100644
--- a/dnn/src/rocm/batched_matrix_mul/algos.h
+++ b/dnn/src/rocm/batched_matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batched_matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batched_matrix_mul/blas.cpp b/dnn/src/rocm/batched_matrix_mul/blas.cpp
index 9672377f..2eefbfaf 100644
--- a/dnn/src/rocm/batched_matrix_mul/blas.cpp
+++ b/dnn/src/rocm/batched_matrix_mul/blas.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batched_matrix_mul/Blas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batched_matrix_mul/opr_impl.cpp b/dnn/src/rocm/batched_matrix_mul/opr_impl.cpp
index 496d86bf..2c9788f7 100644
--- a/dnn/src/rocm/batched_matrix_mul/opr_impl.cpp
+++ b/dnn/src/rocm/batched_matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batched_matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/batched_matrix_mul/opr_impl.h b/dnn/src/rocm/batched_matrix_mul/opr_impl.h
index fa9b0bfb..4311f3d6 100644
--- a/dnn/src/rocm/batched_matrix_mul/opr_impl.h
+++ b/dnn/src/rocm/batched_matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/batched_matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/checksum/opr_impl.cpp b/dnn/src/rocm/checksum/opr_impl.cpp
index d3be35c4..3307448d 100644
--- a/dnn/src/rocm/checksum/opr_impl.cpp
+++ b/dnn/src/rocm/checksum/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/checksum/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/checksum/opr_impl.h b/dnn/src/rocm/checksum/opr_impl.h
index a76915fe..8ecb18f6 100644
--- a/dnn/src/rocm/checksum/opr_impl.h
+++ b/dnn/src/rocm/checksum/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/checksum/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_data/algo.cpp b/dnn/src/rocm/convolution/backward_data/algo.cpp
index 30df20d4..9b131bb4 100644
--- a/dnn/src/rocm/convolution/backward_data/algo.cpp
+++ b/dnn/src/rocm/convolution/backward_data/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_data/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_data/algo.h b/dnn/src/rocm/convolution/backward_data/algo.h
index 81b21843..7260bbc0 100644
--- a/dnn/src/rocm/convolution/backward_data/algo.h
+++ b/dnn/src/rocm/convolution/backward_data/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_data/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_data/chanwise.cpp b/dnn/src/rocm/convolution/backward_data/chanwise.cpp
index 1897504a..3713bf1c 100644
--- a/dnn/src/rocm/convolution/backward_data/chanwise.cpp
+++ b/dnn/src/rocm/convolution/backward_data/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_data/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_data/matmul.cpp b/dnn/src/rocm/convolution/backward_data/matmul.cpp
index e7c085ab..ee43d304 100644
--- a/dnn/src/rocm/convolution/backward_data/matmul.cpp
+++ b/dnn/src/rocm/convolution/backward_data/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_data/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_data/miopen.cpp b/dnn/src/rocm/convolution/backward_data/miopen.cpp
index 87873242..0f2d6334 100644
--- a/dnn/src/rocm/convolution/backward_data/miopen.cpp
+++ b/dnn/src/rocm/convolution/backward_data/miopen.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_data/miopen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_filter/algo.cpp b/dnn/src/rocm/convolution/backward_filter/algo.cpp
index 35b31ca7..5265ca4a 100644
--- a/dnn/src/rocm/convolution/backward_filter/algo.cpp
+++ b/dnn/src/rocm/convolution/backward_filter/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_filter/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_filter/algo.h b/dnn/src/rocm/convolution/backward_filter/algo.h
index 96f46dce..a9a1f0ae 100644
--- a/dnn/src/rocm/convolution/backward_filter/algo.h
+++ b/dnn/src/rocm/convolution/backward_filter/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_filter/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_filter/chanwise.cpp b/dnn/src/rocm/convolution/backward_filter/chanwise.cpp
index c16ede27..f808ae37 100644
--- a/dnn/src/rocm/convolution/backward_filter/chanwise.cpp
+++ b/dnn/src/rocm/convolution/backward_filter/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_filter/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_filter/matmul.cpp b/dnn/src/rocm/convolution/backward_filter/matmul.cpp
index 462a0ea8..752a2936 100644
--- a/dnn/src/rocm/convolution/backward_filter/matmul.cpp
+++ b/dnn/src/rocm/convolution/backward_filter/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_filter/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/backward_filter/miopen.cpp b/dnn/src/rocm/convolution/backward_filter/miopen.cpp
index d4e6e5a3..cbf28ab3 100644
--- a/dnn/src/rocm/convolution/backward_filter/miopen.cpp
+++ b/dnn/src/rocm/convolution/backward_filter/miopen.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/backward_filter/miopen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/1x1.cpp b/dnn/src/rocm/convolution/forward/1x1.cpp
index 580472fc..67913d38 100644
--- a/dnn/src/rocm/convolution/forward/1x1.cpp
+++ b/dnn/src/rocm/convolution/forward/1x1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/1x1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/algo.cpp b/dnn/src/rocm/convolution/forward/algo.cpp
index b1a5382f..d45d0c25 100644
--- a/dnn/src/rocm/convolution/forward/algo.cpp
+++ b/dnn/src/rocm/convolution/forward/algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/algo.h b/dnn/src/rocm/convolution/forward/algo.h
index baf95579..ccafe0d8 100644
--- a/dnn/src/rocm/convolution/forward/algo.h
+++ b/dnn/src/rocm/convolution/forward/algo.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/algo.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/chanwise.cpp b/dnn/src/rocm/convolution/forward/chanwise.cpp
index 2f46bcda..c0191cbe 100644
--- a/dnn/src/rocm/convolution/forward/chanwise.cpp
+++ b/dnn/src/rocm/convolution/forward/chanwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/chanwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/inplace_matmul.cpp b/dnn/src/rocm/convolution/forward/inplace_matmul.cpp
index 80b51e6c..899e06e4 100644
--- a/dnn/src/rocm/convolution/forward/inplace_matmul.cpp
+++ b/dnn/src/rocm/convolution/forward/inplace_matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/inplace_matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/matmul.cpp b/dnn/src/rocm/convolution/forward/matmul.cpp
index 040d64d3..ac2828e6 100644
--- a/dnn/src/rocm/convolution/forward/matmul.cpp
+++ b/dnn/src/rocm/convolution/forward/matmul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/matmul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/forward/miopen.cpp b/dnn/src/rocm/convolution/forward/miopen.cpp
index 1ed75d17..c98b9c80 100644
--- a/dnn/src/rocm/convolution/forward/miopen.cpp
+++ b/dnn/src/rocm/convolution/forward/miopen.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/forward/miopen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/helper.cpp b/dnn/src/rocm/convolution/helper.cpp
index cb52a21c..c792b7b6 100644
--- a/dnn/src/rocm/convolution/helper.cpp
+++ b/dnn/src/rocm/convolution/helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/helper.h b/dnn/src/rocm/convolution/helper.h
index 0029ba55..9658a145 100644
--- a/dnn/src/rocm/convolution/helper.h
+++ b/dnn/src/rocm/convolution/helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/opr_impl.cpp b/dnn/src/rocm/convolution/opr_impl.cpp
index bfa2c079..15c88ea8 100644
--- a/dnn/src/rocm/convolution/opr_impl.cpp
+++ b/dnn/src/rocm/convolution/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/convolution/opr_impl.h b/dnn/src/rocm/convolution/opr_impl.h
index abb8c08a..d672a086 100644
--- a/dnn/src/rocm/convolution/opr_impl.h
+++ b/dnn/src/rocm/convolution/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/convolution/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/elemwise/kern_impl.inl b/dnn/src/rocm/elemwise/kern_impl.inl
index fb6b287b..09bdad04 100644
--- a/dnn/src/rocm/elemwise/kern_impl.inl
+++ b/dnn/src/rocm/elemwise/kern_impl.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/elemwise/kern_impl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/elemwise/opr_impl.cpp b/dnn/src/rocm/elemwise/opr_impl.cpp
index 90a84977..35353bed 100644
--- a/dnn/src/rocm/elemwise/opr_impl.cpp
+++ b/dnn/src/rocm/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/elemwise/opr_impl.h b/dnn/src/rocm/elemwise/opr_impl.h
index ec38961c..0c24fc98 100644
--- a/dnn/src/rocm/elemwise/opr_impl.h
+++ b/dnn/src/rocm/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/elemwise/special_kerns.inl b/dnn/src/rocm/elemwise/special_kerns.inl
index d6e47dc9..d8bdab73 100644
--- a/dnn/src/rocm/elemwise/special_kerns.inl
+++ b/dnn/src/rocm/elemwise/special_kerns.inl
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/elemwise/special_kerns.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/elemwise_helper.cpp b/dnn/src/rocm/elemwise_helper.cpp
index 209e08b6..8fc47cd6 100644
--- a/dnn/src/rocm/elemwise_helper.cpp
+++ b/dnn/src/rocm/elemwise_helper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/elemwise_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/eye/opr_impl.cpp b/dnn/src/rocm/eye/opr_impl.cpp
index d11c56a6..ca5b0f42 100644
--- a/dnn/src/rocm/eye/opr_impl.cpp
+++ b/dnn/src/rocm/eye/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/eye/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/eye/opr_impl.h b/dnn/src/rocm/eye/opr_impl.h
index 9566285c..566b9b54 100644
--- a/dnn/src/rocm/eye/opr_impl.h
+++ b/dnn/src/rocm/eye/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/eye/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/handle.cpp b/dnn/src/rocm/handle.cpp
index 802d75c7..b26e7a00 100644
--- a/dnn/src/rocm/handle.cpp
+++ b/dnn/src/rocm/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/handle.h b/dnn/src/rocm/handle.h
index dbd0a2cd..12eed9a1 100644
--- a/dnn/src/rocm/handle.h
+++ b/dnn/src/rocm/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.cpp b/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.cpp
index 89f3c381..68605b0f 100644
--- a/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.cpp
+++ b/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/indexing_multi_axis_vec/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.h b/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.h
index 0c67f9a2..c01e4a5e 100644
--- a/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.h
+++ b/dnn/src/rocm/indexing_multi_axis_vec/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/indexing_multi_axis_vec/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/indexing_one_hot/opr_impl.cpp b/dnn/src/rocm/indexing_one_hot/opr_impl.cpp
index f64efebe..57d9af45 100644
--- a/dnn/src/rocm/indexing_one_hot/opr_impl.cpp
+++ b/dnn/src/rocm/indexing_one_hot/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/indexing_one_hot/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/indexing_one_hot/opr_impl.h b/dnn/src/rocm/indexing_one_hot/opr_impl.h
index d01daa3b..70509a1b 100644
--- a/dnn/src/rocm/indexing_one_hot/opr_impl.h
+++ b/dnn/src/rocm/indexing_one_hot/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/indexing_one_hot/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/int_fastdiv.cpp b/dnn/src/rocm/int_fastdiv.cpp
index fd26ad30..89a03d41 100644
--- a/dnn/src/rocm/int_fastdiv.cpp
+++ b/dnn/src/rocm/int_fastdiv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/int_fastdiv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/linspace/opr_impl.cpp b/dnn/src/rocm/linspace/opr_impl.cpp
index 1e7b42ec..1ee661fa 100644
--- a/dnn/src/rocm/linspace/opr_impl.cpp
+++ b/dnn/src/rocm/linspace/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/linspace/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/linspace/opr_impl.h b/dnn/src/rocm/linspace/opr_impl.h
index 8b5d0786..a629147b 100644
--- a/dnn/src/rocm/linspace/opr_impl.h
+++ b/dnn/src/rocm/linspace/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/linspace/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/matrix_mul/algos.cpp b/dnn/src/rocm/matrix_mul/algos.cpp
index d8063540..aa0076e8 100644
--- a/dnn/src/rocm/matrix_mul/algos.cpp
+++ b/dnn/src/rocm/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/matrix_mul/algos.h b/dnn/src/rocm/matrix_mul/algos.h
index dcf280c8..7111a10b 100644
--- a/dnn/src/rocm/matrix_mul/algos.h
+++ b/dnn/src/rocm/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/matrix_mul/blas.cpp b/dnn/src/rocm/matrix_mul/blas.cpp
index 8bc2f58c..3ef8c539 100644
--- a/dnn/src/rocm/matrix_mul/blas.cpp
+++ b/dnn/src/rocm/matrix_mul/blas.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/matrix_mul/Blas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/matrix_mul/opr_impl.cpp b/dnn/src/rocm/matrix_mul/opr_impl.cpp
index 75fe8f14..d0f3e443 100644
--- a/dnn/src/rocm/matrix_mul/opr_impl.cpp
+++ b/dnn/src/rocm/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/matrix_mul/opr_impl.h b/dnn/src/rocm/matrix_mul/opr_impl.h
index ca2a190f..52bb3e90 100644
--- a/dnn/src/rocm/matrix_mul/opr_impl.h
+++ b/dnn/src/rocm/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/computing_context.hpp b/dnn/src/rocm/megcore/computing_context.hpp
index 273fc56e..7d6cbd72 100644
--- a/dnn/src/rocm/megcore/computing_context.hpp
+++ b/dnn/src/rocm/megcore/computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/device_context.hpp b/dnn/src/rocm/megcore/device_context.hpp
index 068e018a..b16e044c 100644
--- a/dnn/src/rocm/megcore/device_context.hpp
+++ b/dnn/src/rocm/megcore/device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/public_api/computing.cpp b/dnn/src/rocm/megcore/public_api/computing.cpp
index 6bc19579..13a5755b 100644
--- a/dnn/src/rocm/megcore/public_api/computing.cpp
+++ b/dnn/src/rocm/megcore/public_api/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/public_api/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/rocm_computing_context.cpp b/dnn/src/rocm/megcore/rocm_computing_context.cpp
index e65ee35d..fc0a23dc 100644
--- a/dnn/src/rocm/megcore/rocm_computing_context.cpp
+++ b/dnn/src/rocm/megcore/rocm_computing_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/rocm_computing_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/rocm_computing_context.hpp b/dnn/src/rocm/megcore/rocm_computing_context.hpp
index db34ab13..1f1fe14f 100644
--- a/dnn/src/rocm/megcore/rocm_computing_context.hpp
+++ b/dnn/src/rocm/megcore/rocm_computing_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/rocm_computing_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/rocm_device_context.cpp b/dnn/src/rocm/megcore/rocm_device_context.cpp
index c12baf04..8d56c577 100644
--- a/dnn/src/rocm/megcore/rocm_device_context.cpp
+++ b/dnn/src/rocm/megcore/rocm_device_context.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/rocm_device_context.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/megcore/rocm_device_context.hpp b/dnn/src/rocm/megcore/rocm_device_context.hpp
index 3ff4586f..9e563bc6 100644
--- a/dnn/src/rocm/megcore/rocm_device_context.hpp
+++ b/dnn/src/rocm/megcore/rocm_device_context.hpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/megcore/rocm_device_context.hpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/miopen_with_check.h b/dnn/src/rocm/miopen_with_check.h
index ad2e84fc..24d8eca8 100644
--- a/dnn/src/rocm/miopen_with_check.h
+++ b/dnn/src/rocm/miopen_with_check.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/miopen_with_check.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/miopen_wrapper.cpp b/dnn/src/rocm/miopen_wrapper.cpp
index 1b82405f..7f488632 100644
--- a/dnn/src/rocm/miopen_wrapper.cpp
+++ b/dnn/src/rocm/miopen_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/miopen_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/miopen_wrapper.h b/dnn/src/rocm/miopen_wrapper.h
index f571bedd..7c1cf1bc 100644
--- a/dnn/src/rocm/miopen_wrapper.h
+++ b/dnn/src/rocm/miopen_wrapper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/miopen_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/pooling/opr_impl.cpp b/dnn/src/rocm/pooling/opr_impl.cpp
index 7724ea40..d7525e11 100644
--- a/dnn/src/rocm/pooling/opr_impl.cpp
+++ b/dnn/src/rocm/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/pooling/opr_impl.h b/dnn/src/rocm/pooling/opr_impl.h
index 71958575..feb755eb 100644
--- a/dnn/src/rocm/pooling/opr_impl.h
+++ b/dnn/src/rocm/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/powc/opr_impl.cpp b/dnn/src/rocm/powc/opr_impl.cpp
index 742c11c2..5b7f4f6e 100644
--- a/dnn/src/rocm/powc/opr_impl.cpp
+++ b/dnn/src/rocm/powc/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/powc/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/powc/opr_impl.h b/dnn/src/rocm/powc/opr_impl.h
index c7671fc5..02929115 100644
--- a/dnn/src/rocm/powc/opr_impl.h
+++ b/dnn/src/rocm/powc/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/powc/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/reduce/opr_impl.cpp b/dnn/src/rocm/reduce/opr_impl.cpp
index e241e6c0..e0197adc 100644
--- a/dnn/src/rocm/reduce/opr_impl.cpp
+++ b/dnn/src/rocm/reduce/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/reduce/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/reduce/opr_impl.h b/dnn/src/rocm/reduce/opr_impl.h
index 26eb3db7..ac5a8b3c 100644
--- a/dnn/src/rocm/reduce/opr_impl.h
+++ b/dnn/src/rocm/reduce/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/reduce/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/relayout/opr_impl.cpp b/dnn/src/rocm/relayout/opr_impl.cpp
index e24d58c4..df2f9c25 100644
--- a/dnn/src/rocm/relayout/opr_impl.cpp
+++ b/dnn/src/rocm/relayout/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/relayout/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/relayout/opr_impl.h b/dnn/src/rocm/relayout/opr_impl.h
index 6131ddf6..b921df19 100644
--- a/dnn/src/rocm/relayout/opr_impl.h
+++ b/dnn/src/rocm/relayout/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/relayout/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/relayout/relayout_contiguous.cpp b/dnn/src/rocm/relayout/relayout_contiguous.cpp
index 89e767f3..bc431483 100644
--- a/dnn/src/rocm/relayout/relayout_contiguous.cpp
+++ b/dnn/src/rocm/relayout/relayout_contiguous.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/relayout/relayout_contiguous.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/rng/opr_impl.cpp b/dnn/src/rocm/rng/opr_impl.cpp
index 0170e744..e6043319 100644
--- a/dnn/src/rocm/rng/opr_impl.cpp
+++ b/dnn/src/rocm/rng/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/rng/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/rng/opr_impl.h b/dnn/src/rocm/rng/opr_impl.h
index ae6dd1f7..9e1dfe55 100644
--- a/dnn/src/rocm/rng/opr_impl.h
+++ b/dnn/src/rocm/rng/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/rng/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/rocblas_header.h b/dnn/src/rocm/rocblas_header.h
index dd35bb97..129ed4e8 100644
--- a/dnn/src/rocm/rocblas_header.h
+++ b/dnn/src/rocm/rocblas_header.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/rocblas_header.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/sleep/opr_impl.cpp b/dnn/src/rocm/sleep/opr_impl.cpp
index 71aa3c04..16c0e77b 100644
--- a/dnn/src/rocm/sleep/opr_impl.cpp
+++ b/dnn/src/rocm/sleep/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/sleep/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/sleep/opr_impl.h b/dnn/src/rocm/sleep/opr_impl.h
index 2cd62da9..f44420c0 100644
--- a/dnn/src/rocm/sleep/opr_impl.h
+++ b/dnn/src/rocm/sleep/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/sleep/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/type_cvt/opr_impl.cpp b/dnn/src/rocm/type_cvt/opr_impl.cpp
index 7fe01114..3dfac6b3 100644
--- a/dnn/src/rocm/type_cvt/opr_impl.cpp
+++ b/dnn/src/rocm/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/type_cvt/opr_impl.h b/dnn/src/rocm/type_cvt/opr_impl.h
index 254e66ee..ab5df169 100644
--- a/dnn/src/rocm/type_cvt/opr_impl.h
+++ b/dnn/src/rocm/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/utils.cpp b/dnn/src/rocm/utils.cpp
index e2b5f4f6..489b0a35 100644
--- a/dnn/src/rocm/utils.cpp
+++ b/dnn/src/rocm/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/rocm/utils.h b/dnn/src/rocm/utils.h
index dd54a6fe..d1d33568 100644
--- a/dnn/src/rocm/utils.h
+++ b/dnn/src/rocm/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/rocm/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/add_update/opr_impl.cpp b/dnn/src/x86/add_update/opr_impl.cpp
index 437f12a0..81a301fe 100644
--- a/dnn/src/x86/add_update/opr_impl.cpp
+++ b/dnn/src/x86/add_update/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/add_update/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/add_update/opr_impl.h b/dnn/src/x86/add_update/opr_impl.h
index 68245b64..728c24ba 100644
--- a/dnn/src/x86/add_update/opr_impl.h
+++ b/dnn/src/x86/add_update/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/add_update/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/avx_helper.h b/dnn/src/x86/avx_helper.h
index 063ed33c..86974b7d 100644
--- a/dnn/src/x86/avx_helper.h
+++ b/dnn/src/x86/avx_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/avx_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/algos.cpp b/dnn/src/x86/conv_bias/f32/algos.cpp
index 9140d4a6..543147f0 100644
--- a/dnn/src/x86/conv_bias/f32/algos.cpp
+++ b/dnn/src/x86/conv_bias/f32/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/algos.h b/dnn/src/x86/conv_bias/f32/algos.h
index c15e56c5..67af52f9 100644
--- a/dnn/src/x86/conv_bias/f32/algos.h
+++ b/dnn/src/x86/conv_bias/f32/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/do_conv_stride2.h b/dnn/src/x86/conv_bias/f32/do_conv_stride2.h
index 27cc4707..51b190ef 100644
--- a/dnn/src/x86/conv_bias/f32/do_conv_stride2.h
+++ b/dnn/src/x86/conv_bias/f32/do_conv_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/do_conv_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/strategy.h b/dnn/src/x86/conv_bias/f32/strategy.h
index eaf3c9b0..61a3c256 100644
--- a/dnn/src/x86/conv_bias/f32/strategy.h
+++ b/dnn/src/x86/conv_bias/f32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/strategy_2x3_8x8.cpp b/dnn/src/x86/conv_bias/f32/strategy_2x3_8x8.cpp
index 6b90829a..6d4bed6c 100644
--- a/dnn/src/x86/conv_bias/f32/strategy_2x3_8x8.cpp
+++ b/dnn/src/x86/conv_bias/f32/strategy_2x3_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/strategy_2x3_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/strategy_6x3_8x8.cpp b/dnn/src/x86/conv_bias/f32/strategy_6x3_8x8.cpp
index fb92fca6..0c9437c2 100644
--- a/dnn/src/x86/conv_bias/f32/strategy_6x3_8x8.cpp
+++ b/dnn/src/x86/conv_bias/f32/strategy_6x3_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/strategy_6x3_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/f32/winograd_algo.cpp b/dnn/src/x86/conv_bias/f32/winograd_algo.cpp
index 39468312..3b522065 100644
--- a/dnn/src/x86/conv_bias/f32/winograd_algo.cpp
+++ b/dnn/src/x86/conv_bias/f32/winograd_algo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/f32/winograd_algo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/algo_usable_preferred.cpp b/dnn/src/x86/conv_bias/int8/algo_usable_preferred.cpp
index ac7f565a..aa38f488 100644
--- a/dnn/src/x86/conv_bias/int8/algo_usable_preferred.cpp
+++ b/dnn/src/x86/conv_bias/int8/algo_usable_preferred.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/algo_usable_preferred.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/algo_usable_preferred.h b/dnn/src/x86/conv_bias/int8/algo_usable_preferred.h
index 240a88d2..f8f21712 100644
--- a/dnn/src/x86/conv_bias/int8/algo_usable_preferred.h
+++ b/dnn/src/x86/conv_bias/int8/algo_usable_preferred.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/algo_usable_preferred.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/algos.cpp b/dnn/src/x86/conv_bias/int8/algos.cpp
index ad269613..9cb70346 100644
--- a/dnn/src/x86/conv_bias/int8/algos.cpp
+++ b/dnn/src/x86/conv_bias/int8/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/algos.h b/dnn/src/x86/conv_bias/int8/algos.h
index 4830d36b..bdcd6f80 100644
--- a/dnn/src/x86/conv_bias/int8/algos.h
+++ b/dnn/src/x86/conv_bias/int8/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.cpp b/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.cpp
index ae8eb6bc..160496cd 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.cpp
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.cpp
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwise_kern.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.h b/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.h
index 00676b73..006c80ea 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.h
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_kern.h
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwsie_kern.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.cpp b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.cpp
index deffaa86..cf68c9a1 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.cpp
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.cpp
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwsie_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.h b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.h
index 0061c900..d4d59113 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.h
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride1.h
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwsie_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.cpp b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.cpp
index 19b2df2e..b2b871ad 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.cpp
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.cpp
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwsie_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.h b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.h
index 183c8103..e88129fb 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.h
+++ b/dnn/src/x86/conv_bias/int8/avx2_chanwise_stride2.h
@@ -2,7 +2,7 @@
  * \file src/x86/conv_bias/int8/avx2_chanwsie_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.cpp b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.cpp
index d7c4e17a..84e0e819 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.cpp
+++ b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.h b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.h
index df4db7ef..47db2e98 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.h
+++ b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.cpp b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.cpp
index 8f581ff2..4041aa6f 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.cpp
+++ b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.h b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.h
index 10679c4d..85cbb8ae 100644
--- a/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.h
+++ b/dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/avx2_direct_conv_stride2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/chanwise_helper.h b/dnn/src/x86/conv_bias/int8/chanwise_helper.h
index c800ea79..dfb2bb67 100644
--- a/dnn/src/x86/conv_bias/int8/chanwise_helper.h
+++ b/dnn/src/x86/conv_bias/int8/chanwise_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/chainwise_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/int8/common_helper.h b/dnn/src/x86/conv_bias/int8/common_helper.h
index 7fa6e96d..a1a70c60 100644
--- a/dnn/src/x86/conv_bias/int8/common_helper.h
+++ b/dnn/src/x86/conv_bias/int8/common_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/int8/common_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/opr_impl.cpp b/dnn/src/x86/conv_bias/opr_impl.cpp
index b95fbd3b..3244b47c 100644
--- a/dnn/src/x86/conv_bias/opr_impl.cpp
+++ b/dnn/src/x86/conv_bias/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/opr_impl.h b/dnn/src/x86/conv_bias/opr_impl.h
index 6a977919..086f64b5 100644
--- a/dnn/src/x86/conv_bias/opr_impl.h
+++ b/dnn/src/x86/conv_bias/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/conv_bias/postprocess_helper.h b/dnn/src/x86/conv_bias/postprocess_helper.h
index 0881be30..c2b54085 100644
--- a/dnn/src/x86/conv_bias/postprocess_helper.h
+++ b/dnn/src/x86/conv_bias/postprocess_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/conv_bias/postprocess_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh1_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh1_avx.cpp
index d20601b1..0aa4d7d2 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh1_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh1_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh1_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh2_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh2_avx.cpp
index aad94a3f..9fe74a55 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh2_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh2_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh2_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh3_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh3_avx.cpp
index 4bfa40e0..fccebbc3 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh3_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh3_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh3_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh4_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh4_avx.cpp
index 189d353f..bb313cea 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh4_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh4_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh4_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh5_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh5_avx.cpp
index d845288a..36d40a9f 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh5_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh5_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh5_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh6_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh6_avx.cpp
index 88eeeae9..175bff87 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh6_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh6_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh6_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_conv_fh7_avx.cpp b/dnn/src/x86/convolution/avx/convolution_conv_fh7_avx.cpp
index c314fbef..043def68 100644
--- a/dnn/src/x86/convolution/avx/convolution_conv_fh7_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_conv_fh7_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_conv_fh7_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh1_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh1_avx.cpp
index d8a2836f..7072016f 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh1_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh1_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh1_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh2_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh2_avx.cpp
index 33dac4c8..36a13994 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh2_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh2_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh2_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh3_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh3_avx.cpp
index c4127c76..108fcaaa 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh3_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh3_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh3_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh4_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh4_avx.cpp
index 2833ffd8..b2d8663f 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh4_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh4_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh4_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh5_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh5_avx.cpp
index 951c9bdf..bcf0e501 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh5_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh5_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh5_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh6_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh6_avx.cpp
index 1bdd7953..9a460af3 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh6_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh6_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh6_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/avx/convolution_xcorr_fh7_avx.cpp b/dnn/src/x86/convolution/avx/convolution_xcorr_fh7_avx.cpp
index 7f9c8dea..4071f97f 100644
--- a/dnn/src/x86/convolution/avx/convolution_xcorr_fh7_avx.cpp
+++ b/dnn/src/x86/convolution/avx/convolution_xcorr_fh7_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/avx/convolution_xcorr_fh7_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/convolution_direct_special_cases.h b/dnn/src/x86/convolution/convolution_direct_special_cases.h
index 65d811be..1c0bce04 100644
--- a/dnn/src/x86/convolution/convolution_direct_special_cases.h
+++ b/dnn/src/x86/convolution/convolution_direct_special_cases.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/convolution_direct_special_cases.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh1_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh1_fma.cpp
index 32ff3c8d..82a1d39b 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh1_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh1_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh1_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh2_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh2_fma.cpp
index 3f7bb66e..ffcced38 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh2_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh2_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh2_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh3_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh3_fma.cpp
index 60515f56..bf3ff619 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh3_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh3_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh3_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh4_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh4_fma.cpp
index 8cfd755c..6e16fbec 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh4_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh4_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh4_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh5_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh5_fma.cpp
index 737b1e99..b683c814 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh5_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh5_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh5_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh6_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh6_fma.cpp
index e11b420f..892fdd74 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh6_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh6_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh6_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_conv_fh7_fma.cpp b/dnn/src/x86/convolution/fma/convolution_conv_fh7_fma.cpp
index c714e71f..69ea7355 100644
--- a/dnn/src/x86/convolution/fma/convolution_conv_fh7_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_conv_fh7_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_conv_fh7_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh1_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh1_fma.cpp
index afa02cf0..66502e63 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh1_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh1_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh1_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh2_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh2_fma.cpp
index f444e589..3e3255d7 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh2_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh2_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh2_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh3_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh3_fma.cpp
index c39b6e3a..23daf466 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh3_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh3_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh3_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh4_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh4_fma.cpp
index a672f0ec..b502540a 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh4_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh4_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh4_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh5_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh5_fma.cpp
index 59254f93..948f265a 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh5_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh5_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh5_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh6_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh6_fma.cpp
index 25a9be41..0302cd2a 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh6_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh6_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh6_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/fma/convolution_xcorr_fh7_fma.cpp b/dnn/src/x86/convolution/fma/convolution_xcorr_fh7_fma.cpp
index 54bfd8a4..a422ba2a 100644
--- a/dnn/src/x86/convolution/fma/convolution_xcorr_fh7_fma.cpp
+++ b/dnn/src/x86/convolution/fma/convolution_xcorr_fh7_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/fma/convolution_xcorr_fh7_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh1_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh1_sse.cpp
index b15dbc58..a4830159 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh1_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh1_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh1_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh2_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh2_sse.cpp
index e4e45e95..d8735264 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh2_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh2_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh2_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh3_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh3_sse.cpp
index fcc28b74..e7a7ef2f 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh3_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh3_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh3_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh4_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh4_sse.cpp
index 0cda150a..51c6d12f 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh4_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh4_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh4_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh5_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh5_sse.cpp
index 49b5aca7..842696e2 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh5_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh5_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh5_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh6_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh6_sse.cpp
index 98d87c85..238eea35 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh6_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh6_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh6_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_conv_fh7_sse.cpp b/dnn/src/x86/convolution/sse/convolution_conv_fh7_sse.cpp
index cd676cb3..a4351096 100644
--- a/dnn/src/x86/convolution/sse/convolution_conv_fh7_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_conv_fh7_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_conv_fh7_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh1_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh1_sse.cpp
index d9294bb1..daa09405 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh1_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh1_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh1_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh2_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh2_sse.cpp
index 75c8646d..336e3146 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh2_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh2_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh2_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh3_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh3_sse.cpp
index fcc6b0e1..5f0a477b 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh3_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh3_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh3_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh4_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh4_sse.cpp
index b012d5ba..358343af 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh4_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh4_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh4_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh5_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh5_sse.cpp
index 629f80ef..f6f7cbb2 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh5_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh5_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh5_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh6_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh6_sse.cpp
index 0ac509a6..4b3a2740 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh6_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh6_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh6_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/convolution/sse/convolution_xcorr_fh7_sse.cpp b/dnn/src/x86/convolution/sse/convolution_xcorr_fh7_sse.cpp
index fd9630c7..339c2116 100644
--- a/dnn/src/x86/convolution/sse/convolution_xcorr_fh7_sse.cpp
+++ b/dnn/src/x86/convolution/sse/convolution_xcorr_fh7_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/convolution/sse/convolution_xcorr_fh7_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/cvt_color/opr_impl.cpp b/dnn/src/x86/cvt_color/opr_impl.cpp
index ef1d64f6..7077306d 100644
--- a/dnn/src/x86/cvt_color/opr_impl.cpp
+++ b/dnn/src/x86/cvt_color/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/cvt_color/opr_impl.h b/dnn/src/x86/cvt_color/opr_impl.h
index a20ceac1..58b12b3c 100644
--- a/dnn/src/x86/cvt_color/opr_impl.h
+++ b/dnn/src/x86/cvt_color/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/cvt_color/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/avx_util/avx_mathfun.cpp b/dnn/src/x86/elemwise/avx_util/avx_mathfun.cpp
index fc1b1cc9..95e17043 100644
--- a/dnn/src/x86/elemwise/avx_util/avx_mathfun.cpp
+++ b/dnn/src/x86/elemwise/avx_util/avx_mathfun.cpp
@@ -33,7 +33,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/avx_util/avx_mathfun.h b/dnn/src/x86/elemwise/avx_util/avx_mathfun.h
index 423caf1b..55e1bf45 100644
--- a/dnn/src/x86/elemwise/avx_util/avx_mathfun.h
+++ b/dnn/src/x86/elemwise/avx_util/avx_mathfun.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/avx_util/avx_mathfun.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/avx_util/avx_util.cpp b/dnn/src/x86/elemwise/avx_util/avx_util.cpp
index 610bcea7..36969ddf 100644
--- a/dnn/src/x86/elemwise/avx_util/avx_util.cpp
+++ b/dnn/src/x86/elemwise/avx_util/avx_util.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/avx_util/avx_util.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/avx_util/avx_util.h b/dnn/src/x86/elemwise/avx_util/avx_util.h
index 78c19668..66ac9fd4 100644
--- a/dnn/src/x86/elemwise/avx_util/avx_util.h
+++ b/dnn/src/x86/elemwise/avx_util/avx_util.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/avx_util/avx_util.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/fma_util/fma_util.cpp b/dnn/src/x86/elemwise/fma_util/fma_util.cpp
index bc3e60c3..035c79f5 100644
--- a/dnn/src/x86/elemwise/fma_util/fma_util.cpp
+++ b/dnn/src/x86/elemwise/fma_util/fma_util.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/fma_util/fma_util.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/fma_util/fma_util.h b/dnn/src/x86/elemwise/fma_util/fma_util.h
index d10dcb83..2a145112 100644
--- a/dnn/src/x86/elemwise/fma_util/fma_util.h
+++ b/dnn/src/x86/elemwise/fma_util/fma_util.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/fma_util/fma_util.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/opr_impl.cpp b/dnn/src/x86/elemwise/opr_impl.cpp
index bfc1dbb1..8df7155d 100644
--- a/dnn/src/x86/elemwise/opr_impl.cpp
+++ b/dnn/src/x86/elemwise/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/opr_impl.h b/dnn/src/x86/elemwise/opr_impl.h
index 906fd85c..4e3a7858 100644
--- a/dnn/src/x86/elemwise/opr_impl.h
+++ b/dnn/src/x86/elemwise/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/sse_util/sse_mathfun.cpp b/dnn/src/x86/elemwise/sse_util/sse_mathfun.cpp
index 07fae08a..33b46da4 100644
--- a/dnn/src/x86/elemwise/sse_util/sse_mathfun.cpp
+++ b/dnn/src/x86/elemwise/sse_util/sse_mathfun.cpp
@@ -34,7 +34,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/sse_util/sse_mathfun.h b/dnn/src/x86/elemwise/sse_util/sse_mathfun.h
index 7454a7e9..e2aed9f3 100644
--- a/dnn/src/x86/elemwise/sse_util/sse_mathfun.h
+++ b/dnn/src/x86/elemwise/sse_util/sse_mathfun.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/sse_util/sse_mathfun.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/sse_util/sse_util.cpp b/dnn/src/x86/elemwise/sse_util/sse_util.cpp
index 7d015334..f4f9c9a3 100644
--- a/dnn/src/x86/elemwise/sse_util/sse_util.cpp
+++ b/dnn/src/x86/elemwise/sse_util/sse_util.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/sse_util/sse_util.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise/sse_util/sse_util.h b/dnn/src/x86/elemwise/sse_util/sse_util.h
index 9a987e5e..b5d650c0 100644
--- a/dnn/src/x86/elemwise/sse_util/sse_util.h
+++ b/dnn/src/x86/elemwise/sse_util/sse_util.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise/sse_util/sse_util.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/abs.h b/dnn/src/x86/elemwise_helper/kimpl/abs.h
index a2365094..90f085f7 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/abs.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/abs.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/abs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/add.h b/dnn/src/x86/elemwise_helper/kimpl/add.h
index 1792484e..89b15009 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/add.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/add.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/add.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/exp.h b/dnn/src/x86/elemwise_helper/kimpl/exp.h
index cabdf0da..bfb91599 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/exp.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/exp.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/exp.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fast_tanh.h b/dnn/src/x86/elemwise_helper/kimpl/fast_tanh.h
index c6810156..29c042c2 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fast_tanh.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fast_tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fast_tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_h_swish.h b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_h_swish.h
index 01e7771a..a60f67b2 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_h_swish.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_h_swish.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fuse_add_h_swish.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_relu.h b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_relu.h
index bf19f0d5..500c2d87 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_relu.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_relu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fuse_add_relu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_sigmoid.h b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_sigmoid.h
index bea96da6..cac9fd29 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_sigmoid.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_sigmoid.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fuse_add_sigmoid.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_tanh.h b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_tanh.h
index a5241a92..a53f8c7d 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fuse_add_tanh.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fuse_add_tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fuse_add_tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/fuse_mul_add3.h b/dnn/src/x86/elemwise_helper/kimpl/fuse_mul_add3.h
index e5914c9c..8cc66301 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/fuse_mul_add3.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/fuse_mul_add3.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/fuse_mul_add3.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/hswish.h b/dnn/src/x86/elemwise_helper/kimpl/hswish.h
index 77f1525d..475c8520 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/hswish.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/hswish.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/hswish.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/max.h b/dnn/src/x86/elemwise_helper/kimpl/max.h
index a9eb29d3..f8c527ec 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/max.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/max.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/max.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/min.h b/dnn/src/x86/elemwise_helper/kimpl/min.h
index 882c30e7..9166ee34 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/min.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/min.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/min.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/mul.h b/dnn/src/x86/elemwise_helper/kimpl/mul.h
index c0f8bef0..a3073f8b 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/mul.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/mul.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/mul.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/none.h b/dnn/src/x86/elemwise_helper/kimpl/none.h
index 9efc42d3..140c8260 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/none.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/none.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/none.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/op_binary_base.h b/dnn/src/x86/elemwise_helper/kimpl/op_binary_base.h
index f730deb2..732d6d19 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/op_binary_base.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/op_binary_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/op_binary_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/op_ternary_base.h b/dnn/src/x86/elemwise_helper/kimpl/op_ternary_base.h
index b29ca02a..ac54fc71 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/op_ternary_base.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/op_ternary_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/op_ternary_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/op_unary_base.h b/dnn/src/x86/elemwise_helper/kimpl/op_unary_base.h
index e0df6b5a..207dbbf9 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/op_unary_base.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/op_unary_base.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/op_unary_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/pow.h b/dnn/src/x86/elemwise_helper/kimpl/pow.h
index d0f409f9..d82a6bea 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/pow.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/pow.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/pow.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/relu.h b/dnn/src/x86/elemwise_helper/kimpl/relu.h
index 8d4a741b..f7d85732 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/relu.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/relu.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/relu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/sigmoid.h b/dnn/src/x86/elemwise_helper/kimpl/sigmoid.h
index 015536b7..249f03e5 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/sigmoid.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/sigmoid.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/sigmoid.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/sub.h b/dnn/src/x86/elemwise_helper/kimpl/sub.h
index 22ac1eab..787a18e0 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/sub.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/sub.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/sub.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/tanh.h b/dnn/src/x86/elemwise_helper/kimpl/tanh.h
index 7771b13d..6c508cf0 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/tanh.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/tanh.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/tanh.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/kimpl/typecvt.h b/dnn/src/x86/elemwise_helper/kimpl/typecvt.h
index eb7d032f..0e0b594e 100644
--- a/dnn/src/x86/elemwise_helper/kimpl/typecvt.h
+++ b/dnn/src/x86/elemwise_helper/kimpl/typecvt.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/kimpl/typecvt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/op_binary.h b/dnn/src/x86/elemwise_helper/op_binary.h
index 4fea823c..14934f31 100644
--- a/dnn/src/x86/elemwise_helper/op_binary.h
+++ b/dnn/src/x86/elemwise_helper/op_binary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/op_binary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/op_ternary.h b/dnn/src/x86/elemwise_helper/op_ternary.h
index 39c03b1a..ebc544e2 100644
--- a/dnn/src/x86/elemwise_helper/op_ternary.h
+++ b/dnn/src/x86/elemwise_helper/op_ternary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/op_ternary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_helper/op_unary.h b/dnn/src/x86/elemwise_helper/op_unary.h
index 6679543f..14a41a94 100644
--- a/dnn/src/x86/elemwise_helper/op_unary.h
+++ b/dnn/src/x86/elemwise_helper/op_unary.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_helper/op_unary.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_multi_type/opr_impl.cpp b/dnn/src/x86/elemwise_multi_type/opr_impl.cpp
index 92fb69eb..abe28168 100644
--- a/dnn/src/x86/elemwise_multi_type/opr_impl.cpp
+++ b/dnn/src/x86/elemwise_multi_type/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_multi_type/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_multi_type/opr_impl.h b/dnn/src/x86/elemwise_multi_type/opr_impl.h
index 4f44ec79..3586857a 100644
--- a/dnn/src/x86/elemwise_multi_type/opr_impl.h
+++ b/dnn/src/x86/elemwise_multi_type/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_multi_type/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/elemwise_op.h b/dnn/src/x86/elemwise_op.h
index 39c59cce..2f95a93f 100644
--- a/dnn/src/x86/elemwise_op.h
+++ b/dnn/src/x86/elemwise_op.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/elemwise_op.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/gaussian_blur/filter.h b/dnn/src/x86/gaussian_blur/filter.h
index 1c2d5fc8..446490a6 100644
--- a/dnn/src/x86/gaussian_blur/filter.h
+++ b/dnn/src/x86/gaussian_blur/filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/gaussian_blur/opr_impl.cpp b/dnn/src/x86/gaussian_blur/opr_impl.cpp
index 065736e6..eeeb0115 100644
--- a/dnn/src/x86/gaussian_blur/opr_impl.cpp
+++ b/dnn/src/x86/gaussian_blur/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/gaussian_blur/opr_impl.h b/dnn/src/x86/gaussian_blur/opr_impl.h
index e26dbbad..76983250 100644
--- a/dnn/src/x86/gaussian_blur/opr_impl.h
+++ b/dnn/src/x86/gaussian_blur/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/gaussian_blur/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/handle.cpp b/dnn/src/x86/handle.cpp
index b7c441c9..0889cbd7 100644
--- a/dnn/src/x86/handle.cpp
+++ b/dnn/src/x86/handle.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/handle.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/handle.h b/dnn/src/x86/handle.h
index 488ee4d5..1de0121c 100644
--- a/dnn/src/x86/handle.h
+++ b/dnn/src/x86/handle.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/handle.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/local_avx.cpp b/dnn/src/x86/local/local_avx.cpp
index a1d30fe7..9c66a7c7 100644
--- a/dnn/src/x86/local/local_avx.cpp
+++ b/dnn/src/x86/local/local_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/local_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/local_fma.cpp b/dnn/src/x86/local/local_fma.cpp
index 9f0929bf..ceef48e2 100644
--- a/dnn/src/x86/local/local_fma.cpp
+++ b/dnn/src/x86/local/local_fma.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/local_fma.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/local_simd.h b/dnn/src/x86/local/local_simd.h
index 5748600a..8fe710c3 100644
--- a/dnn/src/x86/local/local_simd.h
+++ b/dnn/src/x86/local/local_simd.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/local_simd.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/local_sse.cpp b/dnn/src/x86/local/local_sse.cpp
index 359144fa..14f2c4e1 100644
--- a/dnn/src/x86/local/local_sse.cpp
+++ b/dnn/src/x86/local/local_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/local_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/opr_impl.cpp b/dnn/src/x86/local/opr_impl.cpp
index dc531707..8b323ca0 100644
--- a/dnn/src/x86/local/opr_impl.cpp
+++ b/dnn/src/x86/local/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/local/opr_impl.h b/dnn/src/x86/local/opr_impl.h
index 5c854a2d..ffc53fde 100644
--- a/dnn/src/x86/local/opr_impl.h
+++ b/dnn/src/x86/local/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/local/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/lrn/opr_impl.cpp b/dnn/src/x86/lrn/opr_impl.cpp
index e00d7412..98f37951 100644
--- a/dnn/src/x86/lrn/opr_impl.cpp
+++ b/dnn/src/x86/lrn/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/lrn/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/lrn/opr_impl.h b/dnn/src/x86/lrn/opr_impl.h
index 3cc733a7..55cc489a 100644
--- a/dnn/src/x86/lrn/opr_impl.h
+++ b/dnn/src/x86/lrn/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/lrn/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/algos.cpp b/dnn/src/x86/matrix_mul/algos.cpp
index 2562f641..782d4cfe 100644
--- a/dnn/src/x86/matrix_mul/algos.cpp
+++ b/dnn/src/x86/matrix_mul/algos.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/algos.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/algos.h b/dnn/src/x86/matrix_mul/algos.h
index b17c197d..14c6eca1 100644
--- a/dnn/src/x86/matrix_mul/algos.h
+++ b/dnn/src/x86/matrix_mul/algos.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/algos.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/common/common.h b/dnn/src/x86/matrix_mul/common/common.h
index 2b5a3e0b..fb49e289 100644
--- a/dnn/src/x86/matrix_mul/common/common.h
+++ b/dnn/src/x86/matrix_mul/common/common.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/common/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/f32/strategy.h b/dnn/src/x86/matrix_mul/f32/strategy.h
index 4816cf0f..7f799002 100644
--- a/dnn/src/x86/matrix_mul/f32/strategy.h
+++ b/dnn/src/x86/matrix_mul/f32/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/f32/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/f32/strategy_mk8_8x8.cpp b/dnn/src/x86/matrix_mul/f32/strategy_mk8_8x8.cpp
index 20815846..9b5e89c2 100644
--- a/dnn/src/x86/matrix_mul/f32/strategy_mk8_8x8.cpp
+++ b/dnn/src/x86/matrix_mul/f32/strategy_mk8_8x8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/f32/strategy_mk8_8x8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/avx2_strategy_2x4x16.cpp b/dnn/src/x86/matrix_mul/int8/avx2_strategy_2x4x16.cpp
index 80d385ec..78af8448 100644
--- a/dnn/src/x86/matrix_mul/int8/avx2_strategy_2x4x16.cpp
+++ b/dnn/src/x86/matrix_mul/int8/avx2_strategy_2x4x16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/avx2_strategy_2x4x16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/avx2_strategy_4x16x2.cpp b/dnn/src/x86/matrix_mul/int8/avx2_strategy_4x16x2.cpp
index 57cd5c08..681727c1 100644
--- a/dnn/src/x86/matrix_mul/int8/avx2_strategy_4x16x2.cpp
+++ b/dnn/src/x86/matrix_mul/int8/avx2_strategy_4x16x2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/avx2_strategy_4x16x2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/kernel_avx2_2x4x16.h b/dnn/src/x86/matrix_mul/int8/kernel_avx2_2x4x16.h
index 58516bd7..6379c513 100644
--- a/dnn/src/x86/matrix_mul/int8/kernel_avx2_2x4x16.h
+++ b/dnn/src/x86/matrix_mul/int8/kernel_avx2_2x4x16.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/kernel_avx2_2x4x16.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/kernel_avx2_4x16x2.h b/dnn/src/x86/matrix_mul/int8/kernel_avx2_4x16x2.h
index ff32e2d3..2887fcac 100644
--- a/dnn/src/x86/matrix_mul/int8/kernel_avx2_4x16x2.h
+++ b/dnn/src/x86/matrix_mul/int8/kernel_avx2_4x16x2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/kernel_avx2_4x16x2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/kernel_sse_4x8x2.h b/dnn/src/x86/matrix_mul/int8/kernel_sse_4x8x2.h
index c0e90c4d..c225f2fc 100644
--- a/dnn/src/x86/matrix_mul/int8/kernel_sse_4x8x2.h
+++ b/dnn/src/x86/matrix_mul/int8/kernel_sse_4x8x2.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/kernel_sse_4x8x2.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/kernel_vnni_12x32x4.h b/dnn/src/x86/matrix_mul/int8/kernel_vnni_12x32x4.h
index aabf281e..b14807da 100644
--- a/dnn/src/x86/matrix_mul/int8/kernel_vnni_12x32x4.h
+++ b/dnn/src/x86/matrix_mul/int8/kernel_vnni_12x32x4.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/kernel_vnni_12x32x4.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/sse_strategy_4x8x2.cpp b/dnn/src/x86/matrix_mul/int8/sse_strategy_4x8x2.cpp
index d4f931a9..d47e7f04 100644
--- a/dnn/src/x86/matrix_mul/int8/sse_strategy_4x8x2.cpp
+++ b/dnn/src/x86/matrix_mul/int8/sse_strategy_4x8x2.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/sse_strategy_4x8x2.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/strategy.h b/dnn/src/x86/matrix_mul/int8/strategy.h
index 2be50dec..61cd61af 100644
--- a/dnn/src/x86/matrix_mul/int8/strategy.h
+++ b/dnn/src/x86/matrix_mul/int8/strategy.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/strategy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/int8/vnni_strategy.cpp b/dnn/src/x86/matrix_mul/int8/vnni_strategy.cpp
index 4c040aac..73633f88 100644
--- a/dnn/src/x86/matrix_mul/int8/vnni_strategy.cpp
+++ b/dnn/src/x86/matrix_mul/int8/vnni_strategy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/int8/vnni_strategy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/opr_impl.cpp b/dnn/src/x86/matrix_mul/opr_impl.cpp
index fb19c1ff..cf6e64e9 100644
--- a/dnn/src/x86/matrix_mul/opr_impl.cpp
+++ b/dnn/src/x86/matrix_mul/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/matrix_mul/opr_impl.h b/dnn/src/x86/matrix_mul/opr_impl.h
index cc474773..5d9eb78e 100644
--- a/dnn/src/x86/matrix_mul/opr_impl.h
+++ b/dnn/src/x86/matrix_mul/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/matrix_mul/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/midout_error.cpp b/dnn/src/x86/midout_error.cpp
index f3de6e86..f0fd34b0 100644
--- a/dnn/src/x86/midout_error.cpp
+++ b/dnn/src/x86/midout_error.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/midout_error.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.cpp b/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.cpp
index 30e015fe..ba83e206 100644
--- a/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.cpp
+++ b/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.h b/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.h
index 0da5f00d..ac3aa4e6 100644
--- a/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.h
+++ b/dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/do_max_pooling_3x3_s2x2_float_sse.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/max_pooling_w2x2_s2x2_sse.cpp b/dnn/src/x86/pooling/max_pooling_w2x2_s2x2_sse.cpp
index de52daf5..486d8132 100644
--- a/dnn/src/x86/pooling/max_pooling_w2x2_s2x2_sse.cpp
+++ b/dnn/src/x86/pooling/max_pooling_w2x2_s2x2_sse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/max_pooling_w2x2_s2x2_sse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_avx.cpp b/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_avx.cpp
index e0e76fa6..843d7cc1 100644
--- a/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_avx.cpp
+++ b/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_avx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_avx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_sse3.cpp b/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_sse3.cpp
index 065f606c..fa54da80 100644
--- a/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_sse3.cpp
+++ b/dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_sse3.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/mean_pooling_w2x2_s2x2_sse3.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/opr_impl.cpp b/dnn/src/x86/pooling/opr_impl.cpp
index e7e14eb0..bad5a9bd 100644
--- a/dnn/src/x86/pooling/opr_impl.cpp
+++ b/dnn/src/x86/pooling/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/opr_impl.h b/dnn/src/x86/pooling/opr_impl.h
index 28a6f2e0..b97a01df 100644
--- a/dnn/src/x86/pooling/opr_impl.h
+++ b/dnn/src/x86/pooling/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/pooling/pooling_special_cases.h b/dnn/src/x86/pooling/pooling_special_cases.h
index e3527eea..7cc08081 100644
--- a/dnn/src/x86/pooling/pooling_special_cases.h
+++ b/dnn/src/x86/pooling/pooling_special_cases.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/pooling/pooling_special_cases.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/quantized_converter.h b/dnn/src/x86/quantized_converter.h
index 96bbed98..5eda2fcc 100644
--- a/dnn/src/x86/quantized_converter.h
+++ b/dnn/src/x86/quantized_converter.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/quantized_converter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/resize/opr_impl.cpp b/dnn/src/x86/resize/opr_impl.cpp
index 645f7182..4f68b8f4 100644
--- a/dnn/src/x86/resize/opr_impl.cpp
+++ b/dnn/src/x86/resize/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/resize/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/resize/opr_impl.h b/dnn/src/x86/resize/opr_impl.h
index 31b31379..93db0d43 100644
--- a/dnn/src/x86/resize/opr_impl.h
+++ b/dnn/src/x86/resize/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/resize/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/resize/resize_cv.cpp b/dnn/src/x86/resize/resize_cv.cpp
index 80308d10..5ed3fc4a 100644
--- a/dnn/src/x86/resize/resize_cv.cpp
+++ b/dnn/src/x86/resize/resize_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/resize/resize_cv.h b/dnn/src/x86/resize/resize_cv.h
index 93f300cc..9ea41605 100644
--- a/dnn/src/x86/resize/resize_cv.h
+++ b/dnn/src/x86/resize/resize_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/resize/resize_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/script/extract_profile_result.py b/dnn/src/x86/script/extract_profile_result.py
index 6608e3d9..781fbc62 100755
--- a/dnn/src/x86/script/extract_profile_result.py
+++ b/dnn/src/x86/script/extract_profile_result.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/dnn/src/x86/script/gen_convolution2.py b/dnn/src/x86/script/gen_convolution2.py
index b07a1a47..67a57a4e 100755
--- a/dnn/src/x86/script/gen_convolution2.py
+++ b/dnn/src/x86/script/gen_convolution2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_conv/opr_impl.cpp b/dnn/src/x86/separable_conv/opr_impl.cpp
index 2926af58..17f99e57 100644
--- a/dnn/src/x86/separable_conv/opr_impl.cpp
+++ b/dnn/src/x86/separable_conv/opr_impl.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_conv/opr_impl.h b/dnn/src/x86/separable_conv/opr_impl.h
index 376eab69..0190f139 100644
--- a/dnn/src/x86/separable_conv/opr_impl.h
+++ b/dnn/src/x86/separable_conv/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/separable_conv/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_conv/sep_conv_common.h b/dnn/src/x86/separable_conv/sep_conv_common.h
index 03378c04..bf8c118c 100644
--- a/dnn/src/x86/separable_conv/sep_conv_common.h
+++ b/dnn/src/x86/separable_conv/sep_conv_common.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_conv/sep_conv_filter.h b/dnn/src/x86/separable_conv/sep_conv_filter.h
index 041ce9e3..ab6b29f5 100644
--- a/dnn/src/x86/separable_conv/sep_conv_filter.h
+++ b/dnn/src/x86/separable_conv/sep_conv_filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_conv/sep_conv_filter_engine.cpp b/dnn/src/x86/separable_conv/sep_conv_filter_engine.cpp
index fec7788d..ff6773ea 100644
--- a/dnn/src/x86/separable_conv/sep_conv_filter_engine.cpp
+++ b/dnn/src/x86/separable_conv/sep_conv_filter_engine.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_filter/filter.h b/dnn/src/x86/separable_filter/filter.h
index abbf321c..f35d21bc 100644
--- a/dnn/src/x86/separable_filter/filter.h
+++ b/dnn/src/x86/separable_filter/filter.h
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_filter/opr_impl.cpp b/dnn/src/x86/separable_filter/opr_impl.cpp
index eba9c356..36fb6a71 100644
--- a/dnn/src/x86/separable_filter/opr_impl.cpp
+++ b/dnn/src/x86/separable_filter/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/separable_filter/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/separable_filter/opr_impl.h b/dnn/src/x86/separable_filter/opr_impl.h
index 82c506ba..63381a6d 100644
--- a/dnn/src/x86/separable_filter/opr_impl.h
+++ b/dnn/src/x86/separable_filter/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/separable_filter/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_helper.h b/dnn/src/x86/simd_helper.h
index ff1bee0d..c9cc0a99 100644
--- a/dnn/src/x86/simd_helper.h
+++ b/dnn/src/x86/simd_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/avx2_helper.h b/dnn/src/x86/simd_macro/avx2_helper.h
index 68b5fb4a..02022d33 100644
--- a/dnn/src/x86/simd_macro/avx2_helper.h
+++ b/dnn/src/x86/simd_macro/avx2_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/avx2_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/avx2_helper_epilogue.h b/dnn/src/x86/simd_macro/avx2_helper_epilogue.h
index f5882d79..a64335ce 100644
--- a/dnn/src/x86/simd_macro/avx2_helper_epilogue.h
+++ b/dnn/src/x86/simd_macro/avx2_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/avx2_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/avx_helper.h b/dnn/src/x86/simd_macro/avx_helper.h
index d35723b8..9f480d48 100644
--- a/dnn/src/x86/simd_macro/avx_helper.h
+++ b/dnn/src/x86/simd_macro/avx_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/avx_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/avx_helper_epilogue.h b/dnn/src/x86/simd_macro/avx_helper_epilogue.h
index e12c6833..13107948 100644
--- a/dnn/src/x86/simd_macro/avx_helper_epilogue.h
+++ b/dnn/src/x86/simd_macro/avx_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/avx_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/fma_helper.h b/dnn/src/x86/simd_macro/fma_helper.h
index b304af16..facf5416 100644
--- a/dnn/src/x86/simd_macro/fma_helper.h
+++ b/dnn/src/x86/simd_macro/fma_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/fma_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/fma_helper_epilogue.h b/dnn/src/x86/simd_macro/fma_helper_epilogue.h
index 543d77ae..35a3d3a2 100644
--- a/dnn/src/x86/simd_macro/fma_helper_epilogue.h
+++ b/dnn/src/x86/simd_macro/fma_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/fma_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/immintrin.h b/dnn/src/x86/simd_macro/immintrin.h
index 9d297886..42d733f7 100644
--- a/dnn/src/x86/simd_macro/immintrin.h
+++ b/dnn/src/x86/simd_macro/immintrin.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/immintrin.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/sse_helper.h b/dnn/src/x86/simd_macro/sse_helper.h
index a3bc9728..9336a275 100644
--- a/dnn/src/x86/simd_macro/sse_helper.h
+++ b/dnn/src/x86/simd_macro/sse_helper.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/sse_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/sse_helper_epilogue.h b/dnn/src/x86/simd_macro/sse_helper_epilogue.h
index 325b5990..a2a99964 100644
--- a/dnn/src/x86/simd_macro/sse_helper_epilogue.h
+++ b/dnn/src/x86/simd_macro/sse_helper_epilogue.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/simd_macro/sse_helper_epilogue.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/simd_macro/sse_helper_typedef.h b/dnn/src/x86/simd_macro/sse_helper_typedef.h
index aa7e97e8..f1ae863a 100644
--- a/dnn/src/x86/simd_macro/sse_helper_typedef.h
+++ b/dnn/src/x86/simd_macro/sse_helper_typedef.h
@@ -31,7 +31,7 @@
  * \file dnn/src/x86/simd_macro/sse_helper_typedef.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/type_cvt/opr_impl.cpp b/dnn/src/x86/type_cvt/opr_impl.cpp
index dd7b1318..42310618 100644
--- a/dnn/src/x86/type_cvt/opr_impl.cpp
+++ b/dnn/src/x86/type_cvt/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/type_cvt/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/type_cvt/opr_impl.h b/dnn/src/x86/type_cvt/opr_impl.h
index 97af9e66..5d051a9c 100644
--- a/dnn/src/x86/type_cvt/opr_impl.h
+++ b/dnn/src/x86/type_cvt/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/type_cvt/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/utils.cpp b/dnn/src/x86/utils.cpp
index 54346b08..790c9ffc 100644
--- a/dnn/src/x86/utils.cpp
+++ b/dnn/src/x86/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/utils.h b/dnn/src/x86/utils.h
index d417d9c3..0d0f7f2c 100644
--- a/dnn/src/x86/utils.h
+++ b/dnn/src/x86/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_affine/opr_impl.cpp b/dnn/src/x86/warp_affine/opr_impl.cpp
index 516c7036..661fe8ad 100644
--- a/dnn/src/x86/warp_affine/opr_impl.cpp
+++ b/dnn/src/x86/warp_affine/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_affine/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_affine/opr_impl.h b/dnn/src/x86/warp_affine/opr_impl.h
index 1f500153..8ad9a6ff 100644
--- a/dnn/src/x86/warp_affine/opr_impl.h
+++ b/dnn/src/x86/warp_affine/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_affine/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_affine/warp_affine_cv.cpp b/dnn/src/x86/warp_affine/warp_affine_cv.cpp
index b382c60e..a5c30493 100644
--- a/dnn/src/x86/warp_affine/warp_affine_cv.cpp
+++ b/dnn/src/x86/warp_affine/warp_affine_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_affine/warp_affine_cv.h b/dnn/src/x86/warp_affine/warp_affine_cv.h
index 564c8fa1..1460ddc3 100644
--- a/dnn/src/x86/warp_affine/warp_affine_cv.h
+++ b/dnn/src/x86/warp_affine/warp_affine_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_affine/warp_affine_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_perspective/opr_impl.cpp b/dnn/src/x86/warp_perspective/opr_impl.cpp
index 570bc0f9..e59778a6 100644
--- a/dnn/src/x86/warp_perspective/opr_impl.cpp
+++ b/dnn/src/x86/warp_perspective/opr_impl.cpp
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_perspective/opr_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_perspective/opr_impl.h b/dnn/src/x86/warp_perspective/opr_impl.h
index f6e0929d..19deda4c 100644
--- a/dnn/src/x86/warp_perspective/opr_impl.h
+++ b/dnn/src/x86/warp_perspective/opr_impl.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_perspective/opr_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_perspective/warp_perspective_cv.cpp b/dnn/src/x86/warp_perspective/warp_perspective_cv.cpp
index f02d7a98..5234bbff 100644
--- a/dnn/src/x86/warp_perspective/warp_perspective_cv.cpp
+++ b/dnn/src/x86/warp_perspective/warp_perspective_cv.cpp
@@ -47,7 +47,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/src/x86/warp_perspective/warp_perspective_cv.h b/dnn/src/x86/warp_perspective/warp_perspective_cv.h
index 1e343108..c24f9415 100644
--- a/dnn/src/x86/warp_perspective/warp_perspective_cv.h
+++ b/dnn/src/x86/warp_perspective/warp_perspective_cv.h
@@ -2,7 +2,7 @@
  * \file dnn/src/x86/warp_perspective/warp_perspective_cv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/batched_matrix_mul.cpp b/dnn/test/aarch64/batched_matrix_mul.cpp
index 23003f33..28f638fb 100644
--- a/dnn/test/aarch64/batched_matrix_mul.cpp
+++ b/dnn/test/aarch64/batched_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/batched_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/conv_bias.cpp b/dnn/test/aarch64/conv_bias.cpp
index 8d993d2e..bf4ca105 100644
--- a/dnn/test/aarch64/conv_bias.cpp
+++ b/dnn/test/aarch64/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/convolution.cpp b/dnn/test/aarch64/convolution.cpp
index 6bdda2e6..01609eda 100644
--- a/dnn/test/aarch64/convolution.cpp
+++ b/dnn/test/aarch64/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/fixture.h b/dnn/test/aarch64/fixture.h
index 3c8ffda9..25dd3b3d 100644
--- a/dnn/test/aarch64/fixture.h
+++ b/dnn/test/aarch64/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/matrix_mul.cpp b/dnn/test/aarch64/matrix_mul.cpp
index 27404d04..0bef6a0a 100644
--- a/dnn/test/aarch64/matrix_mul.cpp
+++ b/dnn/test/aarch64/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/pooling.cpp b/dnn/test/aarch64/pooling.cpp
index b890d329..ffe62c91 100644
--- a/dnn/test/aarch64/pooling.cpp
+++ b/dnn/test/aarch64/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/rotate.cpp b/dnn/test/aarch64/rotate.cpp
index cedd45fd..27ebe31d 100644
--- a/dnn/test/aarch64/rotate.cpp
+++ b/dnn/test/aarch64/rotate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/rotate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/aarch64/warp_perspective.cpp b/dnn/test/aarch64/warp_perspective.cpp
index b3a59a4e..3004c021 100644
--- a/dnn/test/aarch64/warp_perspective.cpp
+++ b/dnn/test/aarch64/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/aarch64/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias.cpp b/dnn/test/arm_common/conv_bias.cpp
index 60c297be..08d8add6 100644
--- a/dnn/test/arm_common/conv_bias.cpp
+++ b/dnn/test/arm_common/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias_multi_thread.cpp b/dnn/test/arm_common/conv_bias_multi_thread.cpp
index 3fe6e395..fe7deb97 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias_multi_thread.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp b/dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp
index 2d07c5b9..157dda11 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias_multi_thread_benchmark.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias_multi_thread_conv1x1.cpp b/dnn/test/arm_common/conv_bias_multi_thread_conv1x1.cpp
index 1a2feb86..74e6c1dc 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread_conv1x1.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread_conv1x1.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias_multi_thread_conv1x1.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias_multi_thread_im2col.cpp b/dnn/test/arm_common/conv_bias_multi_thread_im2col.cpp
index a197e430..debfb1f7 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread_im2col.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread_im2col.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias_multi_thread_im2col.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/conv_bias_multi_thread_weight_preprocess.cpp b/dnn/test/arm_common/conv_bias_multi_thread_weight_preprocess.cpp
index 03225c0c..13f23fac 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread_weight_preprocess.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread_weight_preprocess.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/conv_bias_multi_thread_weight_preprocess.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/convolution.cpp b/dnn/test/arm_common/convolution.cpp
index 101b3b03..d0872291 100644
--- a/dnn/test/arm_common/convolution.cpp
+++ b/dnn/test/arm_common/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/cpuinfo.cpp b/dnn/test/arm_common/cpuinfo.cpp
index 0f7fdcc0..5881ffe4 100644
--- a/dnn/test/arm_common/cpuinfo.cpp
+++ b/dnn/test/arm_common/cpuinfo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/cpuinfo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/cpuinfo_help.cpp b/dnn/test/arm_common/cpuinfo_help.cpp
index 85a66ce9..7297a93c 100644
--- a/dnn/test/arm_common/cpuinfo_help.cpp
+++ b/dnn/test/arm_common/cpuinfo_help.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/cpuinfo_help.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/cpuinfo_help.h b/dnn/test/arm_common/cpuinfo_help.h
index cfcdeddd..99fdfd24 100644
--- a/dnn/test/arm_common/cpuinfo_help.h
+++ b/dnn/test/arm_common/cpuinfo_help.h
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/cpuinfo_help.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/cvt_color.cpp b/dnn/test/arm_common/cvt_color.cpp
index 75d8c5f6..6fbbf36d 100644
--- a/dnn/test/arm_common/cvt_color.cpp
+++ b/dnn/test/arm_common/cvt_color.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/cvt_color.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/elemwise.cpp b/dnn/test/arm_common/elemwise.cpp
index 653d3fe6..efedb76f 100644
--- a/dnn/test/arm_common/elemwise.cpp
+++ b/dnn/test/arm_common/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/elemwise_benchmark.cpp b/dnn/test/arm_common/elemwise_benchmark.cpp
index eafb7354..ec16b376 100644
--- a/dnn/test/arm_common/elemwise_benchmark.cpp
+++ b/dnn/test/arm_common/elemwise_benchmark.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/elemwise_benchmark.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/elemwise_multi_type.cpp b/dnn/test/arm_common/elemwise_multi_type.cpp
index 0725b0c8..79f38c2f 100644
--- a/dnn/test/arm_common/elemwise_multi_type.cpp
+++ b/dnn/test/arm_common/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/fixture.h b/dnn/test/arm_common/fixture.h
index e1cabaf2..00c89910 100644
--- a/dnn/test/arm_common/fixture.h
+++ b/dnn/test/arm_common/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/group_local.cpp b/dnn/test/arm_common/group_local.cpp
index 8361f3fd..9ff2d931 100644
--- a/dnn/test/arm_common/group_local.cpp
+++ b/dnn/test/arm_common/group_local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/group_local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/local.cpp b/dnn/test/arm_common/local.cpp
index 9b22445a..ca36fceb 100644
--- a/dnn/test/arm_common/local.cpp
+++ b/dnn/test/arm_common/local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/matrix_mul.cpp b/dnn/test/arm_common/matrix_mul.cpp
index 67ce2ef6..0f15e8f7 100644
--- a/dnn/test/arm_common/matrix_mul.cpp
+++ b/dnn/test/arm_common/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/pooling.cpp b/dnn/test/arm_common/pooling.cpp
index e1210eea..430264f0 100644
--- a/dnn/test/arm_common/pooling.cpp
+++ b/dnn/test/arm_common/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/pooling_multi_thread.cpp b/dnn/test/arm_common/pooling_multi_thread.cpp
index 5472e9cb..2532a80e 100644
--- a/dnn/test/arm_common/pooling_multi_thread.cpp
+++ b/dnn/test/arm_common/pooling_multi_thread.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/pooling_multi_thread.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/reduce.cpp b/dnn/test/arm_common/reduce.cpp
index 29182739..30ec16f8 100644
--- a/dnn/test/arm_common/reduce.cpp
+++ b/dnn/test/arm_common/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/resize.cpp b/dnn/test/arm_common/resize.cpp
index 6e5c5fd3..360bc849 100644
--- a/dnn/test/arm_common/resize.cpp
+++ b/dnn/test/arm_common/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/separable_filter.cpp b/dnn/test/arm_common/separable_filter.cpp
index 9d364238..a298e17c 100644
--- a/dnn/test/arm_common/separable_filter.cpp
+++ b/dnn/test/arm_common/separable_filter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/separable_filter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/type_cvt.cpp b/dnn/test/arm_common/type_cvt.cpp
index 36195f5b..dbc7a371 100644
--- a/dnn/test/arm_common/type_cvt.cpp
+++ b/dnn/test/arm_common/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/warp_affine.cpp b/dnn/test/arm_common/warp_affine.cpp
index 8e11fb05..5721aa88 100644
--- a/dnn/test/arm_common/warp_affine.cpp
+++ b/dnn/test/arm_common/warp_affine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/warp_affine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/arm_common/warp_perspective.cpp b/dnn/test/arm_common/warp_perspective.cpp
index 83c2c38a..316878c8 100644
--- a/dnn/test/arm_common/warp_perspective.cpp
+++ b/dnn/test/arm_common/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/arm_common/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/conv_bias.cpp b/dnn/test/armv7/conv_bias.cpp
index 18a471e7..e42abd36 100644
--- a/dnn/test/armv7/conv_bias.cpp
+++ b/dnn/test/armv7/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/convolution.cpp b/dnn/test/armv7/convolution.cpp
index 8018ead2..48ff67cf 100644
--- a/dnn/test/armv7/convolution.cpp
+++ b/dnn/test/armv7/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/fixture.h b/dnn/test/armv7/fixture.h
index 5830f9a9..9b4ed519 100644
--- a/dnn/test/armv7/fixture.h
+++ b/dnn/test/armv7/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/matrix_mul.cpp b/dnn/test/armv7/matrix_mul.cpp
index 2e7baa28..97a37fa8 100644
--- a/dnn/test/armv7/matrix_mul.cpp
+++ b/dnn/test/armv7/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/pooling.cpp b/dnn/test/armv7/pooling.cpp
index 1b4c051d..c294e11b 100644
--- a/dnn/test/armv7/pooling.cpp
+++ b/dnn/test/armv7/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/armv7/rotate.cpp b/dnn/test/armv7/rotate.cpp
index af8ef081..23319062 100644
--- a/dnn/test/armv7/rotate.cpp
+++ b/dnn/test/armv7/rotate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/armv7/rotate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/atlas/checksum.cpp b/dnn/test/atlas/checksum.cpp
index 455328ea..2c076799 100644
--- a/dnn/test/atlas/checksum.cpp
+++ b/dnn/test/atlas/checksum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/atlas/checksum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/atlas/fixture.cpp b/dnn/test/atlas/fixture.cpp
index 9d1caa56..630b8516 100644
--- a/dnn/test/atlas/fixture.cpp
+++ b/dnn/test/atlas/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/atlas/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/atlas/fixture.h b/dnn/test/atlas/fixture.h
index f72746c4..2cc6fea7 100644
--- a/dnn/test/atlas/fixture.h
+++ b/dnn/test/atlas/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/atlas/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cambricon/checksum.cpp b/dnn/test/cambricon/checksum.cpp
index c66118cd..61896652 100644
--- a/dnn/test/cambricon/checksum.cpp
+++ b/dnn/test/cambricon/checksum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cambricon/checksum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cambricon/fixture.cpp b/dnn/test/cambricon/fixture.cpp
index 3993f3f1..515c081a 100644
--- a/dnn/test/cambricon/fixture.cpp
+++ b/dnn/test/cambricon/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cambricon/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cambricon/fixture.h b/dnn/test/cambricon/fixture.h
index fd1954d0..2f7b1107 100644
--- a/dnn/test/cambricon/fixture.h
+++ b/dnn/test/cambricon/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cambricon/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/adaptive_pooling.h b/dnn/test/common/adaptive_pooling.h
index 7e449513..98f64f75 100644
--- a/dnn/test/common/adaptive_pooling.h
+++ b/dnn/test/common/adaptive_pooling.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/adaptive_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/benchmark_basic_types.cpp b/dnn/test/common/benchmark_basic_types.cpp
index 328dca85..e5ff99cd 100644
--- a/dnn/test/common/benchmark_basic_types.cpp
+++ b/dnn/test/common/benchmark_basic_types.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/benchmark_basic_types.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/benchmarker.h b/dnn/test/common/benchmarker.h
index 51903994..ecfb150d 100644
--- a/dnn/test/common/benchmarker.h
+++ b/dnn/test/common/benchmarker.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/benchmarker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/bn.h b/dnn/test/common/bn.h
index abc6fc53..5c67ccc2 100644
--- a/dnn/test/common/bn.h
+++ b/dnn/test/common/bn.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/bn.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/checker.cpp b/dnn/test/common/checker.cpp
index 0cb45c6b..5462d348 100644
--- a/dnn/test/common/checker.cpp
+++ b/dnn/test/common/checker.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/checker.h b/dnn/test/common/checker.h
index a16e89fb..aa76336e 100644
--- a/dnn/test/common/checker.h
+++ b/dnn/test/common/checker.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/checker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/comparator.h b/dnn/test/common/comparator.h
index 03c021db..f53a449d 100644
--- a/dnn/test/common/comparator.h
+++ b/dnn/test/common/comparator.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/comparator.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/comparator.inl b/dnn/test/common/comparator.inl
index a83bff99..7a6f8377 100644
--- a/dnn/test/common/comparator.inl
+++ b/dnn/test/common/comparator.inl
@@ -2,7 +2,7 @@
  * \file dnn/test/common/comparator.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/cond_take.cpp b/dnn/test/common/cond_take.cpp
index 37c3b216..0a0a033b 100644
--- a/dnn/test/common/cond_take.cpp
+++ b/dnn/test/common/cond_take.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/cond_take.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/cond_take.h b/dnn/test/common/cond_take.h
index b5c758e4..f3e85ffd 100644
--- a/dnn/test/common/cond_take.h
+++ b/dnn/test/common/cond_take.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/cond_take.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/conv_bias.cpp b/dnn/test/common/conv_bias.cpp
index 3d00d40e..c92e89c5 100644
--- a/dnn/test/common/conv_bias.cpp
+++ b/dnn/test/common/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/conv_bias.h b/dnn/test/common/conv_bias.h
index 4d5a1cc3..b2b12d73 100644
--- a/dnn/test/common/conv_bias.h
+++ b/dnn/test/common/conv_bias.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/conv_bias.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/conv_pooling.cpp b/dnn/test/common/conv_pooling.cpp
index 1409264f..9b6fa9b5 100644
--- a/dnn/test/common/conv_pooling.cpp
+++ b/dnn/test/common/conv_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/conv_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/conv_pooling.h b/dnn/test/common/conv_pooling.h
index e7030feb..897fc11d 100644
--- a/dnn/test/common/conv_pooling.h
+++ b/dnn/test/common/conv_pooling.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/conv_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/convolution.cpp b/dnn/test/common/convolution.cpp
index 416e2f0f..00166a92 100644
--- a/dnn/test/common/convolution.cpp
+++ b/dnn/test/common/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/convolution.h b/dnn/test/common/convolution.h
index a971ab1d..2d9a338d 100644
--- a/dnn/test/common/convolution.h
+++ b/dnn/test/common/convolution.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/convolution.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/convolution3d.cpp b/dnn/test/common/convolution3d.cpp
index c7f7289d..bf533deb 100644
--- a/dnn/test/common/convolution3d.cpp
+++ b/dnn/test/common/convolution3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/convolution3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/convolution3d.h b/dnn/test/common/convolution3d.h
index 0bac412f..d1b61369 100644
--- a/dnn/test/common/convolution3d.h
+++ b/dnn/test/common/convolution3d.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/convolution3d.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/cvt_color.h b/dnn/test/common/cvt_color.h
index 7f9dd907..70b41342 100644
--- a/dnn/test/common/cvt_color.h
+++ b/dnn/test/common/cvt_color.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/cvt_color.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/dct_ref.cpp b/dnn/test/common/dct_ref.cpp
index 7923915f..1807d928 100644
--- a/dnn/test/common/dct_ref.cpp
+++ b/dnn/test/common/dct_ref.cpp
@@ -3,7 +3,7 @@
  * dnn/test/common/dct_ref.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/dct_ref.h b/dnn/test/common/dct_ref.h
index 8045c43e..da45a0a1 100644
--- a/dnn/test/common/dct_ref.h
+++ b/dnn/test/common/dct_ref.h
@@ -3,7 +3,7 @@
  * dnn/test/common/dct_ref.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/deduce_layout_proxy.h b/dnn/test/common/deduce_layout_proxy.h
index d0d78d67..39b453f4 100644
--- a/dnn/test/common/deduce_layout_proxy.h
+++ b/dnn/test/common/deduce_layout_proxy.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/deduce_layout_proxy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/dtype.cpp b/dnn/test/common/dtype.cpp
index cc6ab296..3ec24465 100644
--- a/dnn/test/common/dtype.cpp
+++ b/dnn/test/common/dtype.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/dtype.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/elemwise.cpp b/dnn/test/common/elemwise.cpp
index 523ff206..930ddfb2 100644
--- a/dnn/test/common/elemwise.cpp
+++ b/dnn/test/common/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/elemwise.h b/dnn/test/common/elemwise.h
index c3bd9a14..6bf66c45 100644
--- a/dnn/test/common/elemwise.h
+++ b/dnn/test/common/elemwise.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/elemwise.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/elemwise_multi_type.cpp b/dnn/test/common/elemwise_multi_type.cpp
index 494029c0..6b030c01 100644
--- a/dnn/test/common/elemwise_multi_type.cpp
+++ b/dnn/test/common/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/elemwise_multi_type.h b/dnn/test/common/elemwise_multi_type.h
index bdfed90e..967a325d 100644
--- a/dnn/test/common/elemwise_multi_type.h
+++ b/dnn/test/common/elemwise_multi_type.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/elemwise_multi_type.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/exec_proxy.h b/dnn/test/common/exec_proxy.h
index 76e50d5d..69ae544c 100644
--- a/dnn/test/common/exec_proxy.h
+++ b/dnn/test/common/exec_proxy.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/exec_proxy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/extra_impl_helper.cpp b/dnn/test/common/extra_impl_helper.cpp
index aa3d5486..851f954c 100644
--- a/dnn/test/common/extra_impl_helper.cpp
+++ b/dnn/test/common/extra_impl_helper.cpp
@@ -2,7 +2,7 @@
  * \file test/common/extra_impl_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/extra_impl_helper.h b/dnn/test/common/extra_impl_helper.h
index 631483c5..43311eff 100644
--- a/dnn/test/common/extra_impl_helper.h
+++ b/dnn/test/common/extra_impl_helper.h
@@ -2,7 +2,7 @@
  * \file test/common/extra_impl_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/fake_quant.h b/dnn/test/common/fake_quant.h
index f4657fd4..eabdd560 100644
--- a/dnn/test/common/fake_quant.h
+++ b/dnn/test/common/fake_quant.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/fake_quant.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/fix_gtest_on_platforms_without_exception.inl b/dnn/test/common/fix_gtest_on_platforms_without_exception.inl
index bfa34187..b18cceb4 100644
--- a/dnn/test/common/fix_gtest_on_platforms_without_exception.inl
+++ b/dnn/test/common/fix_gtest_on_platforms_without_exception.inl
@@ -2,7 +2,7 @@
  * \file dnn/test/common/fix_gtest_on_platforms_without_exception.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/flip.h b/dnn/test/common/flip.h
index 20a3396a..234623c8 100644
--- a/dnn/test/common/flip.h
+++ b/dnn/test/common/flip.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/flip.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/gaussian_blur.h b/dnn/test/common/gaussian_blur.h
index 88b0ba13..dd420bb9 100644
--- a/dnn/test/common/gaussian_blur.h
+++ b/dnn/test/common/gaussian_blur.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/gaussian_blur.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/get_dtype_from_static_type.h b/dnn/test/common/get_dtype_from_static_type.h
index debdc14e..52a64ad8 100644
--- a/dnn/test/common/get_dtype_from_static_type.h
+++ b/dnn/test/common/get_dtype_from_static_type.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/get_dtype_from_static_type.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/group_local.h b/dnn/test/common/group_local.h
index efc263ef..3ce0011f 100644
--- a/dnn/test/common/group_local.h
+++ b/dnn/test/common/group_local.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/group_local.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/images2neibs.h b/dnn/test/common/images2neibs.h
index 851b4282..02601651 100644
--- a/dnn/test/common/images2neibs.h
+++ b/dnn/test/common/images2neibs.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/images2neibs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/index.cpp b/dnn/test/common/index.cpp
index 0ca3a385..c77798b6 100644
--- a/dnn/test/common/index.cpp
+++ b/dnn/test/common/index.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/index.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/index.h b/dnn/test/common/index.h
index c40bb70d..2cfc8646 100644
--- a/dnn/test/common/index.h
+++ b/dnn/test/common/index.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/index.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/indexing_multi_axis_vec.h b/dnn/test/common/indexing_multi_axis_vec.h
index 4781becd..8da5529d 100644
--- a/dnn/test/common/indexing_multi_axis_vec.h
+++ b/dnn/test/common/indexing_multi_axis_vec.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/indexing_multi_axis_vec.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/indexing_one_hot.cpp b/dnn/test/common/indexing_one_hot.cpp
index f134b9fe..734f279d 100644
--- a/dnn/test/common/indexing_one_hot.cpp
+++ b/dnn/test/common/indexing_one_hot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/indexing_one_hot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/indexing_one_hot.h b/dnn/test/common/indexing_one_hot.h
index 229042e3..ac8aef2c 100644
--- a/dnn/test/common/indexing_one_hot.h
+++ b/dnn/test/common/indexing_one_hot.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/indexing_one_hot.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/inspect_type.h b/dnn/test/common/inspect_type.h
index 773d45a2..91f981b3 100644
--- a/dnn/test/common/inspect_type.h
+++ b/dnn/test/common/inspect_type.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/inspect_type.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/local.h b/dnn/test/common/local.h
index 23fd3fbc..e2a2b9fb 100644
--- a/dnn/test/common/local.h
+++ b/dnn/test/common/local.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/local.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/mask_conv.h b/dnn/test/common/mask_conv.h
index 0ab37bd9..a34fce29 100644
--- a/dnn/test/common/mask_conv.h
+++ b/dnn/test/common/mask_conv.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/mask_conv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/matrix_mul.cpp b/dnn/test/common/matrix_mul.cpp
index 4b42b551..7cb55374 100644
--- a/dnn/test/common/matrix_mul.cpp
+++ b/dnn/test/common/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/matrix_mul.h b/dnn/test/common/matrix_mul.h
index ab7f025e..7853c09e 100644
--- a/dnn/test/common/matrix_mul.h
+++ b/dnn/test/common/matrix_mul.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/matrix_mul.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/megcore/computing.cpp b/dnn/test/common/megcore/computing.cpp
index 4702855f..5a096c7c 100644
--- a/dnn/test/common/megcore/computing.cpp
+++ b/dnn/test/common/megcore/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/megcore/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/megcore/device.cpp b/dnn/test/common/megcore/device.cpp
index 8e0acf98..289ebd1d 100644
--- a/dnn/test/common/megcore/device.cpp
+++ b/dnn/test/common/megcore/device.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/megcore/device.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/memory_manager.cpp b/dnn/test/common/memory_manager.cpp
index ddfb4b11..70fd9781 100644
--- a/dnn/test/common/memory_manager.cpp
+++ b/dnn/test/common/memory_manager.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/memory_manager.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/memory_manager.h b/dnn/test/common/memory_manager.h
index 752b6dab..be90d0aa 100644
--- a/dnn/test/common/memory_manager.h
+++ b/dnn/test/common/memory_manager.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/memory_manager.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/mesh_indexing.h b/dnn/test/common/mesh_indexing.h
index c3db5223..e615135b 100644
--- a/dnn/test/common/mesh_indexing.h
+++ b/dnn/test/common/mesh_indexing.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/mesh_indexing.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/null_dispatcher.h b/dnn/test/common/null_dispatcher.h
index f87d07d1..f5c0fbf5 100644
--- a/dnn/test/common/null_dispatcher.h
+++ b/dnn/test/common/null_dispatcher.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/null_dispatcher.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/opr_algo_proxy.h b/dnn/test/common/opr_algo_proxy.h
index b2a3d953..5ad9fbcd 100644
--- a/dnn/test/common/opr_algo_proxy.h
+++ b/dnn/test/common/opr_algo_proxy.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/opr_algo_proxy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/opr_proxy.h b/dnn/test/common/opr_proxy.h
index a3ef862e..ec592986 100644
--- a/dnn/test/common/opr_proxy.h
+++ b/dnn/test/common/opr_proxy.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/opr_proxy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/opr_trait.h b/dnn/test/common/opr_trait.h
index 93aa547a..08929d3d 100644
--- a/dnn/test/common/opr_trait.h
+++ b/dnn/test/common/opr_trait.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/opr_trait.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/pooling.h b/dnn/test/common/pooling.h
index 8f19f04b..f0cabe6a 100644
--- a/dnn/test/common/pooling.h
+++ b/dnn/test/common/pooling.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/powc.cpp b/dnn/test/common/powc.cpp
index 9a652ca2..0cc830d4 100644
--- a/dnn/test/common/powc.cpp
+++ b/dnn/test/common/powc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/powc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/powc.h b/dnn/test/common/powc.h
index 80be34f1..241697f5 100644
--- a/dnn/test/common/powc.h
+++ b/dnn/test/common/powc.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/powc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/random_state.cpp b/dnn/test/common/random_state.cpp
index 36926761..7cc0aaf8 100644
--- a/dnn/test/common/random_state.cpp
+++ b/dnn/test/common/random_state.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/random_state.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/random_state.h b/dnn/test/common/random_state.h
index f43db50c..2dbf26e4 100644
--- a/dnn/test/common/random_state.h
+++ b/dnn/test/common/random_state.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/random_state.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/relayout.cpp b/dnn/test/common/relayout.cpp
index bccb40e2..352b1972 100644
--- a/dnn/test/common/relayout.cpp
+++ b/dnn/test/common/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/relayout.h b/dnn/test/common/relayout.h
index 5b4892cc..da204933 100644
--- a/dnn/test/common/relayout.h
+++ b/dnn/test/common/relayout.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/relayout.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/remap.h b/dnn/test/common/remap.h
index f2c22fcd..47213be4 100644
--- a/dnn/test/common/remap.h
+++ b/dnn/test/common/remap.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/remap.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/resize.h b/dnn/test/common/resize.h
index 988e6fac..cc538f80 100644
--- a/dnn/test/common/resize.h
+++ b/dnn/test/common/resize.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/resize.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/rng.cpp b/dnn/test/common/rng.cpp
index f3e25f32..6e6e9fbf 100644
--- a/dnn/test/common/rng.cpp
+++ b/dnn/test/common/rng.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/rng.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/rng.h b/dnn/test/common/rng.h
index f20c0e5f..324a0518 100644
--- a/dnn/test/common/rng.h
+++ b/dnn/test/common/rng.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/rng.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/roi_copy.h b/dnn/test/common/roi_copy.h
index 35bfd776..b3f5ad1a 100644
--- a/dnn/test/common/roi_copy.h
+++ b/dnn/test/common/roi_copy.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/roi_copy.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/roi_pooling.h b/dnn/test/common/roi_pooling.h
index b50264cc..9a3c5b48 100644
--- a/dnn/test/common/roi_pooling.h
+++ b/dnn/test/common/roi_pooling.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/roi_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/rotate.h b/dnn/test/common/rotate.h
index 1743952b..928d07eb 100644
--- a/dnn/test/common/rotate.h
+++ b/dnn/test/common/rotate.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/rotate.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/separable.cpp b/dnn/test/common/separable.cpp
index 0b77a579..44ae8d45 100644
--- a/dnn/test/common/separable.cpp
+++ b/dnn/test/common/separable.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/separable.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/separable_conv.h b/dnn/test/common/separable_conv.h
index e1919335..a2217097 100644
--- a/dnn/test/common/separable_conv.h
+++ b/dnn/test/common/separable_conv.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/separable_conv.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/separable_filter.h b/dnn/test/common/separable_filter.h
index 4409d21c..7d80ace6 100644
--- a/dnn/test/common/separable_filter.h
+++ b/dnn/test/common/separable_filter.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/separable_filter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/small_vector.cpp b/dnn/test/common/small_vector.cpp
index b86db630..667d260e 100644
--- a/dnn/test/common/small_vector.cpp
+++ b/dnn/test/common/small_vector.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/small_vector.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
@@ -25,7 +25,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  */
 
 #include "megdnn/thin/small_vector.h"
diff --git a/dnn/test/common/svd.cpp b/dnn/test/common/svd.cpp
index 7a2f08ed..5c7d7d74 100644
--- a/dnn/test/common/svd.cpp
+++ b/dnn/test/common/svd.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/svd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/svd.h b/dnn/test/common/svd.h
index 97d3d93c..585c50e6 100644
--- a/dnn/test/common/svd.h
+++ b/dnn/test/common/svd.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/svd.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/task_executor.cpp b/dnn/test/common/task_executor.cpp
index 00bbbd69..0fac86b5 100644
--- a/dnn/test/common/task_executor.cpp
+++ b/dnn/test/common/task_executor.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/task_executor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tensor.cpp b/dnn/test/common/tensor.cpp
index dd43954e..b7ba65e9 100644
--- a/dnn/test/common/tensor.cpp
+++ b/dnn/test/common/tensor.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tensor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tensor.h b/dnn/test/common/tensor.h
index cc163083..c13e92ea 100644
--- a/dnn/test/common/tensor.h
+++ b/dnn/test/common/tensor.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tensor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tensor.inl b/dnn/test/common/tensor.inl
index a842f9f5..debf55e5 100644
--- a/dnn/test/common/tensor.inl
+++ b/dnn/test/common/tensor.inl
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tensor.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tensor_remap.cpp b/dnn/test/common/tensor_remap.cpp
index 17f6ef65..532d516a 100644
--- a/dnn/test/common/tensor_remap.cpp
+++ b/dnn/test/common/tensor_remap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tensor_remap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tensor_remap.h b/dnn/test/common/tensor_remap.h
index 173b2106..f8ea6a0c 100644
--- a/dnn/test/common/tensor_remap.h
+++ b/dnn/test/common/tensor_remap.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tensor_remap.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/test_basic_types.cpp b/dnn/test/common/test_basic_types.cpp
index 31a6c2e2..9f4e549e 100644
--- a/dnn/test/common/test_basic_types.cpp
+++ b/dnn/test/common/test_basic_types.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/test_basic_types.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tile_repeat.h b/dnn/test/common/tile_repeat.h
index 97f9ed7c..b7fffafc 100644
--- a/dnn/test/common/tile_repeat.h
+++ b/dnn/test/common/tile_repeat.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tile_repeat.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/timer.h b/dnn/test/common/timer.h
index 8edccc5c..0f57e799 100644
--- a/dnn/test/common/timer.h
+++ b/dnn/test/common/timer.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/timer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/topk.cpp b/dnn/test/common/topk.cpp
index 77f3996c..e9991830 100644
--- a/dnn/test/common/topk.cpp
+++ b/dnn/test/common/topk.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/topk.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/topk.h b/dnn/test/common/topk.h
index 435ecd0a..b13a50b5 100644
--- a/dnn/test/common/topk.h
+++ b/dnn/test/common/topk.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/topk.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/tqt.h b/dnn/test/common/tqt.h
index e19b85eb..f6ab9e62 100644
--- a/dnn/test/common/tqt.h
+++ b/dnn/test/common/tqt.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/tqt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/utils.cpp b/dnn/test/common/utils.cpp
index e559880c..21261657 100644
--- a/dnn/test/common/utils.cpp
+++ b/dnn/test/common/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/utils.h b/dnn/test/common/utils.h
index 98533271..c87573d7 100644
--- a/dnn/test/common/utils.h
+++ b/dnn/test/common/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/warp_affine.h b/dnn/test/common/warp_affine.h
index 07cba5a1..c682a92d 100644
--- a/dnn/test/common/warp_affine.h
+++ b/dnn/test/common/warp_affine.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/warp_affine.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/warp_perspective.cpp b/dnn/test/common/warp_perspective.cpp
index a8c6ec05..5ff230ad 100644
--- a/dnn/test/common/warp_perspective.cpp
+++ b/dnn/test/common/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/warp_perspective.h b/dnn/test/common/warp_perspective.h
index fd163536..ba26bcd3 100644
--- a/dnn/test/common/warp_perspective.h
+++ b/dnn/test/common/warp_perspective.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/warp_perspective.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/winograd_filter_preprocess.h b/dnn/test/common/winograd_filter_preprocess.h
index 3a4def20..0c6716bc 100644
--- a/dnn/test/common/winograd_filter_preprocess.h
+++ b/dnn/test/common/winograd_filter_preprocess.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/winograd_filter_preprocess.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/workspace_wrapper.cpp b/dnn/test/common/workspace_wrapper.cpp
index 0506d1d6..f3395ab6 100644
--- a/dnn/test/common/workspace_wrapper.cpp
+++ b/dnn/test/common/workspace_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/common/workspace_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/common/workspace_wrapper.h b/dnn/test/common/workspace_wrapper.h
index 261cce4c..89412477 100644
--- a/dnn/test/common/workspace_wrapper.h
+++ b/dnn/test/common/workspace_wrapper.h
@@ -2,7 +2,7 @@
  * \file dnn/test/common/workspace_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/batched_matrix_mul.cpp b/dnn/test/cpu/batched_matrix_mul.cpp
index 063f0b44..8c2137e6 100644
--- a/dnn/test/cpu/batched_matrix_mul.cpp
+++ b/dnn/test/cpu/batched_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/batched_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/convolution.cpp b/dnn/test/cpu/convolution.cpp
index b7226fd5..99660549 100644
--- a/dnn/test/cpu/convolution.cpp
+++ b/dnn/test/cpu/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/fixture.cpp b/dnn/test/cpu/fixture.cpp
index 3090ee5c..c8b34054 100644
--- a/dnn/test/cpu/fixture.cpp
+++ b/dnn/test/cpu/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/fixture.h b/dnn/test/cpu/fixture.h
index 9a21a070..a1c62cc5 100644
--- a/dnn/test/cpu/fixture.h
+++ b/dnn/test/cpu/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/group_local.cpp b/dnn/test/cpu/group_local.cpp
index 51de810c..db8f7b72 100644
--- a/dnn/test/cpu/group_local.cpp
+++ b/dnn/test/cpu/group_local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/group_local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/local.cpp b/dnn/test/cpu/local.cpp
index 3d792f95..3623754a 100644
--- a/dnn/test/cpu/local.cpp
+++ b/dnn/test/cpu/local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/mask_conv.cpp b/dnn/test/cpu/mask_conv.cpp
index c215d515..0c61879d 100644
--- a/dnn/test/cpu/mask_conv.cpp
+++ b/dnn/test/cpu/mask_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/mask_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/matrix_mul.cpp b/dnn/test/cpu/matrix_mul.cpp
index cdec9092..f6466866 100644
--- a/dnn/test/cpu/matrix_mul.cpp
+++ b/dnn/test/cpu/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/matrix_mul_int_8x8x16.cpp b/dnn/test/cpu/matrix_mul_int_8x8x16.cpp
index d0aaffc4..d72e6adb 100644
--- a/dnn/test/cpu/matrix_mul_int_8x8x16.cpp
+++ b/dnn/test/cpu/matrix_mul_int_8x8x16.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/matrix_mul_int_8x8x16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/matrix_mul_int_8x8x32.cpp b/dnn/test/cpu/matrix_mul_int_8x8x32.cpp
index 4fcb8305..b1188dfe 100644
--- a/dnn/test/cpu/matrix_mul_int_8x8x32.cpp
+++ b/dnn/test/cpu/matrix_mul_int_8x8x32.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/matrix_mul_int_8x8x32.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/pooling.cpp b/dnn/test/cpu/pooling.cpp
index 75ebf962..7079cc8e 100644
--- a/dnn/test/cpu/pooling.cpp
+++ b/dnn/test/cpu/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/relayout.cpp b/dnn/test/cpu/relayout.cpp
index 05087428..f4d203bf 100644
--- a/dnn/test/cpu/relayout.cpp
+++ b/dnn/test/cpu/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/resize.cpp b/dnn/test/cpu/resize.cpp
index 17ffdb79..585e8243 100644
--- a/dnn/test/cpu/resize.cpp
+++ b/dnn/test/cpu/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/task_executor.cpp b/dnn/test/cpu/task_executor.cpp
index 17be97f4..f80a76c0 100644
--- a/dnn/test/cpu/task_executor.cpp
+++ b/dnn/test/cpu/task_executor.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/task_executor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/type_cvt.cpp b/dnn/test/cpu/type_cvt.cpp
index 80b686a3..d9f294a2 100644
--- a/dnn/test/cpu/type_cvt.cpp
+++ b/dnn/test/cpu/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/warp_affine.cpp b/dnn/test/cpu/warp_affine.cpp
index da4b3316..1ef9a5d8 100644
--- a/dnn/test/cpu/warp_affine.cpp
+++ b/dnn/test/cpu/warp_affine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/warp_affine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cpu/warp_perspective.cpp b/dnn/test/cpu/warp_perspective.cpp
index b618122d..8b476289 100644
--- a/dnn/test/cpu/warp_perspective.cpp
+++ b/dnn/test/cpu/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cpu/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/adaptive_pooling.cpp b/dnn/test/cuda/adaptive_pooling.cpp
index 14d444c5..124a07e8 100644
--- a/dnn/test/cuda/adaptive_pooling.cpp
+++ b/dnn/test/cuda/adaptive_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/adaptive_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/add_update.cpp b/dnn/test/cuda/add_update.cpp
index 328a2cce..f0adac45 100644
--- a/dnn/test/cuda/add_update.cpp
+++ b/dnn/test/cuda/add_update.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/argmxx.cpp b/dnn/test/cuda/argmxx.cpp
index 89e6cadb..d94f30f1 100644
--- a/dnn/test/cuda/argmxx.cpp
+++ b/dnn/test/cuda/argmxx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/argmxx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/argsort.cpp b/dnn/test/cuda/argsort.cpp
index b8779f72..fc5a97f1 100644
--- a/dnn/test/cuda/argsort.cpp
+++ b/dnn/test/cuda/argsort.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/argsort.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/batch_conv_bias.cpp b/dnn/test/cuda/batch_conv_bias.cpp
index 66e34f8c..dff1b220 100644
--- a/dnn/test/cuda/batch_conv_bias.cpp
+++ b/dnn/test/cuda/batch_conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/batch_conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/batched_matrix_mul.cpp b/dnn/test/cuda/batched_matrix_mul.cpp
index 30263e0a..9b845950 100644
--- a/dnn/test/cuda/batched_matrix_mul.cpp
+++ b/dnn/test/cuda/batched_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/batched_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/benchmark.cpp b/dnn/test/cuda/benchmark.cpp
index 6ba3687b..f54d804f 100644
--- a/dnn/test/cuda/benchmark.cpp
+++ b/dnn/test/cuda/benchmark.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/benchmark.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/benchmark.h b/dnn/test/cuda/benchmark.h
index b94d1781..4a929fd0 100644
--- a/dnn/test/cuda/benchmark.h
+++ b/dnn/test/cuda/benchmark.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/benchmark.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/bn.cpp b/dnn/test/cuda/bn.cpp
index 4056162b..d5202ef8 100644
--- a/dnn/test/cuda/bn.cpp
+++ b/dnn/test/cuda/bn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/bn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/chanwise_convolution.cpp b/dnn/test/cuda/chanwise_convolution.cpp
index 14bbbb39..57d20223 100644
--- a/dnn/test/cuda/chanwise_convolution.cpp
+++ b/dnn/test/cuda/chanwise_convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/chanwise_convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/chanwise_convolution3d.cpp b/dnn/test/cuda/chanwise_convolution3d.cpp
index 8d258228..d2e0d2f8 100644
--- a/dnn/test/cuda/chanwise_convolution3d.cpp
+++ b/dnn/test/cuda/chanwise_convolution3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/chanwise_convolution3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/checksum.cpp b/dnn/test/cuda/checksum.cpp
index 61336e8c..f6ac834f 100644
--- a/dnn/test/cuda/checksum.cpp
+++ b/dnn/test/cuda/checksum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/checksum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/concat.cpp b/dnn/test/cuda/concat.cpp
index 2b32a51d..63106ff2 100644
--- a/dnn/test/cuda/concat.cpp
+++ b/dnn/test/cuda/concat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/concat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/cond_take.cpp b/dnn/test/cuda/cond_take.cpp
index 894a2f3a..658fd1f6 100644
--- a/dnn/test/cuda/cond_take.cpp
+++ b/dnn/test/cuda/cond_take.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/cond_take.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/conv_bias.cpp b/dnn/test/cuda/conv_bias.cpp
index 8199ae0a..8f1e665b 100644
--- a/dnn/test/cuda/conv_bias.cpp
+++ b/dnn/test/cuda/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/conv_bias_int8.cpp b/dnn/test/cuda/conv_bias_int8.cpp
index 01a3b8d3..631dafb2 100644
--- a/dnn/test/cuda/conv_bias_int8.cpp
+++ b/dnn/test/cuda/conv_bias_int8.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/conv_bias_int8.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/conv_pooling.cpp b/dnn/test/cuda/conv_pooling.cpp
index 3b688f2c..7a6efc0f 100644
--- a/dnn/test/cuda/conv_pooling.cpp
+++ b/dnn/test/cuda/conv_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/conv_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/convolution.cpp b/dnn/test/cuda/convolution.cpp
index 226809f5..2230aa95 100644
--- a/dnn/test/cuda/convolution.cpp
+++ b/dnn/test/cuda/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/convolution3d.cpp b/dnn/test/cuda/convolution3d.cpp
index 4412dc58..ab21e733 100644
--- a/dnn/test/cuda/convolution3d.cpp
+++ b/dnn/test/cuda/convolution3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/convolution3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/cumsum.cpp b/dnn/test/cuda/cumsum.cpp
index 97df1004..fe58fb5c 100644
--- a/dnn/test/cuda/cumsum.cpp
+++ b/dnn/test/cuda/cumsum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/cumsum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/cvt_color.cpp b/dnn/test/cuda/cvt_color.cpp
index 31815ca9..4ae7e02d 100644
--- a/dnn/test/cuda/cvt_color.cpp
+++ b/dnn/test/cuda/cvt_color.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/cvt_color.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/dct.cpp b/dnn/test/cuda/dct.cpp
index 0045cb86..101e33a0 100644
--- a/dnn/test/cuda/dct.cpp
+++ b/dnn/test/cuda/dct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/dct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/deformable_conv.cpp b/dnn/test/cuda/deformable_conv.cpp
index 629c6069..b00258dc 100644
--- a/dnn/test/cuda/deformable_conv.cpp
+++ b/dnn/test/cuda/deformable_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/deformable_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/deformable_ps_roi_pooling.cpp b/dnn/test/cuda/deformable_ps_roi_pooling.cpp
index 943c2d04..d1555652 100644
--- a/dnn/test/cuda/deformable_ps_roi_pooling.cpp
+++ b/dnn/test/cuda/deformable_ps_roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/deformable_ps_roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/dilated_convolution.cpp b/dnn/test/cuda/dilated_convolution.cpp
index f93ab40a..505b90de 100644
--- a/dnn/test/cuda/dilated_convolution.cpp
+++ b/dnn/test/cuda/dilated_convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/dilated_convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/dot.cpp b/dnn/test/cuda/dot.cpp
index a81d7938..f79443ad 100644
--- a/dnn/test/cuda/dot.cpp
+++ b/dnn/test/cuda/dot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/dot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/elemwise.cpp b/dnn/test/cuda/elemwise.cpp
index ad65c1a3..3bcedb0b 100644
--- a/dnn/test/cuda/elemwise.cpp
+++ b/dnn/test/cuda/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/elemwise_multi_type.cpp b/dnn/test/cuda/elemwise_multi_type.cpp
index d19b9dd0..0bc0fd33 100644
--- a/dnn/test/cuda/elemwise_multi_type.cpp
+++ b/dnn/test/cuda/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/eye.cpp b/dnn/test/cuda/eye.cpp
index ef50848b..870d00ce 100644
--- a/dnn/test/cuda/eye.cpp
+++ b/dnn/test/cuda/eye.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/eye.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/fake_quant.cpp b/dnn/test/cuda/fake_quant.cpp
index bb0c5547..aa7714d2 100644
--- a/dnn/test/cuda/fake_quant.cpp
+++ b/dnn/test/cuda/fake_quant.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/fake_quant.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/fixture.cpp b/dnn/test/cuda/fixture.cpp
index ccbe19d5..b686cbc2 100644
--- a/dnn/test/cuda/fixture.cpp
+++ b/dnn/test/cuda/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/fixture.h b/dnn/test/cuda/fixture.h
index 980d5900..e2f99ba6 100644
--- a/dnn/test/cuda/fixture.h
+++ b/dnn/test/cuda/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/flip.cpp b/dnn/test/cuda/flip.cpp
index 4a3188a9..ea34e723 100644
--- a/dnn/test/cuda/flip.cpp
+++ b/dnn/test/cuda/flip.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/flip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/gaussian_blur.cpp b/dnn/test/cuda/gaussian_blur.cpp
index e3ce6d31..2f4a35e7 100644
--- a/dnn/test/cuda/gaussian_blur.cpp
+++ b/dnn/test/cuda/gaussian_blur.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/gaussian_blur.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/group_conv.cpp b/dnn/test/cuda/group_conv.cpp
index a4e3c019..881530e4 100644
--- a/dnn/test/cuda/group_conv.cpp
+++ b/dnn/test/cuda/group_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/group_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/group_conv3d.cpp b/dnn/test/cuda/group_conv3d.cpp
index 3127adcc..402d0f61 100644
--- a/dnn/test/cuda/group_conv3d.cpp
+++ b/dnn/test/cuda/group_conv3d.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/group_conv3d.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/group_local.cpp b/dnn/test/cuda/group_local.cpp
index 954072d8..ef656e53 100644
--- a/dnn/test/cuda/group_local.cpp
+++ b/dnn/test/cuda/group_local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/group_local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/images2neibs.cpp b/dnn/test/cuda/images2neibs.cpp
index 4b5dee68..cb5ee1c5 100644
--- a/dnn/test/cuda/images2neibs.cpp
+++ b/dnn/test/cuda/images2neibs.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/images2neibs.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/indexing_multi_axis_vec.cpp b/dnn/test/cuda/indexing_multi_axis_vec.cpp
index 4d150092..2d565eb0 100644
--- a/dnn/test/cuda/indexing_multi_axis_vec.cpp
+++ b/dnn/test/cuda/indexing_multi_axis_vec.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/indexing_multi_axis_vec.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/indexing_one_hot.cpp b/dnn/test/cuda/indexing_one_hot.cpp
index 99be7368..0931dcd3 100644
--- a/dnn/test/cuda/indexing_one_hot.cpp
+++ b/dnn/test/cuda/indexing_one_hot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/indexing_one_hot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/linspace.cpp b/dnn/test/cuda/linspace.cpp
index 1bff2350..2efe35af 100644
--- a/dnn/test/cuda/linspace.cpp
+++ b/dnn/test/cuda/linspace.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/linspace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/local.cpp b/dnn/test/cuda/local.cpp
index 00f5086e..0698b3e9 100644
--- a/dnn/test/cuda/local.cpp
+++ b/dnn/test/cuda/local.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/local/local.cu b/dnn/test/cuda/local/local.cu
index 90b86f2b..7592e33c 100644
--- a/dnn/test/cuda/local/local.cu
+++ b/dnn/test/cuda/local/local.cu
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/local/local.cu
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/local/local.h b/dnn/test/cuda/local/local.h
index 9f391b1d..75177572 100644
--- a/dnn/test/cuda/local/local.h
+++ b/dnn/test/cuda/local/local.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/local/local.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/local_share.cpp b/dnn/test/cuda/local_share.cpp
index 1fc9983b..5c07d36a 100644
--- a/dnn/test/cuda/local_share.cpp
+++ b/dnn/test/cuda/local_share.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/local_share.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/lrn.cpp b/dnn/test/cuda/lrn.cpp
index e8abd436..22b9fc06 100644
--- a/dnn/test/cuda/lrn.cpp
+++ b/dnn/test/cuda/lrn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/lrn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/mask_conv.cpp b/dnn/test/cuda/mask_conv.cpp
index 468a7e80..27ec7967 100644
--- a/dnn/test/cuda/mask_conv.cpp
+++ b/dnn/test/cuda/mask_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/mask_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/matrix_inverse.cpp b/dnn/test/cuda/matrix_inverse.cpp
index 50aba8f0..4823cfaa 100644
--- a/dnn/test/cuda/matrix_inverse.cpp
+++ b/dnn/test/cuda/matrix_inverse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/matrix_inverse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/matrix_mul.cpp b/dnn/test/cuda/matrix_mul.cpp
index 0233a17e..ca726543 100644
--- a/dnn/test/cuda/matrix_mul.cpp
+++ b/dnn/test/cuda/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/megcore/computing.cpp b/dnn/test/cuda/megcore/computing.cpp
index 1824deb9..30d9fcec 100644
--- a/dnn/test/cuda/megcore/computing.cpp
+++ b/dnn/test/cuda/megcore/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/megcore/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/megcore/device.cpp b/dnn/test/cuda/megcore/device.cpp
index 7346acad..086e779c 100644
--- a/dnn/test/cuda/megcore/device.cpp
+++ b/dnn/test/cuda/megcore/device.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/megcore/device.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/megcore/fixture.cpp b/dnn/test/cuda/megcore/fixture.cpp
index 4d7307a1..38ecdda1 100644
--- a/dnn/test/cuda/megcore/fixture.cpp
+++ b/dnn/test/cuda/megcore/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/megcore/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/megcore/fixture.h b/dnn/test/cuda/megcore/fixture.h
index f28ce88b..93063493 100644
--- a/dnn/test/cuda/megcore/fixture.h
+++ b/dnn/test/cuda/megcore/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/megcore/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/mesh_indexing.cpp b/dnn/test/cuda/mesh_indexing.cpp
index 336b1200..fde1ab16 100644
--- a/dnn/test/cuda/mesh_indexing.cpp
+++ b/dnn/test/cuda/mesh_indexing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/mesh_indexing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/param_pack.cpp b/dnn/test/cuda/param_pack.cpp
index 25ef5275..56d81f4f 100644
--- a/dnn/test/cuda/param_pack.cpp
+++ b/dnn/test/cuda/param_pack.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/param_pack.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/pooling.cpp b/dnn/test/cuda/pooling.cpp
index 86d42a70..8fcf9f5a 100644
--- a/dnn/test/cuda/pooling.cpp
+++ b/dnn/test/cuda/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/powc.cpp b/dnn/test/cuda/powc.cpp
index d23caebc..b29df4f2 100644
--- a/dnn/test/cuda/powc.cpp
+++ b/dnn/test/cuda/powc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/powc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/reduce.cpp b/dnn/test/cuda/reduce.cpp
index a3eee5dc..7815225a 100644
--- a/dnn/test/cuda/reduce.cpp
+++ b/dnn/test/cuda/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/relayout.cpp b/dnn/test/cuda/relayout.cpp
index a5fdc4f9..e81e1217 100644
--- a/dnn/test/cuda/relayout.cpp
+++ b/dnn/test/cuda/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/relayout_format.cpp b/dnn/test/cuda/relayout_format.cpp
index 12fd5d89..6af7cf04 100644
--- a/dnn/test/cuda/relayout_format.cpp
+++ b/dnn/test/cuda/relayout_format.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/relayout_format.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/remap.cpp b/dnn/test/cuda/remap.cpp
index 1bb8f2f7..bfdc1cdb 100644
--- a/dnn/test/cuda/remap.cpp
+++ b/dnn/test/cuda/remap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/remap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/repeat.cpp b/dnn/test/cuda/repeat.cpp
index 37f9b1e2..bc317b00 100644
--- a/dnn/test/cuda/repeat.cpp
+++ b/dnn/test/cuda/repeat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/repeat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/resize.cpp b/dnn/test/cuda/resize.cpp
index d865d07f..2f5b745e 100644
--- a/dnn/test/cuda/resize.cpp
+++ b/dnn/test/cuda/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/rng.cpp b/dnn/test/cuda/rng.cpp
index dc39d554..a50d9613 100644
--- a/dnn/test/cuda/rng.cpp
+++ b/dnn/test/cuda/rng.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/rng.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/roi_align.cpp b/dnn/test/cuda/roi_align.cpp
index 84013d4f..1ec866ed 100644
--- a/dnn/test/cuda/roi_align.cpp
+++ b/dnn/test/cuda/roi_align.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/roi_align.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/roi_copy.cpp b/dnn/test/cuda/roi_copy.cpp
index 012d570a..875a6a4a 100644
--- a/dnn/test/cuda/roi_copy.cpp
+++ b/dnn/test/cuda/roi_copy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/roi_copy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/roi_pooling.cpp b/dnn/test/cuda/roi_pooling.cpp
index 3a97a458..cbb450c9 100644
--- a/dnn/test/cuda/roi_pooling.cpp
+++ b/dnn/test/cuda/roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/rotate.cpp b/dnn/test/cuda/rotate.cpp
index 73d82ffe..e325274f 100644
--- a/dnn/test/cuda/rotate.cpp
+++ b/dnn/test/cuda/rotate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/rotate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/sleep.cpp b/dnn/test/cuda/sleep.cpp
index 52d2a05e..c5307373 100644
--- a/dnn/test/cuda/sleep.cpp
+++ b/dnn/test/cuda/sleep.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/sleep.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/split.cpp b/dnn/test/cuda/split.cpp
index e4fbdf17..d107a845 100644
--- a/dnn/test/cuda/split.cpp
+++ b/dnn/test/cuda/split.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/split.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/svd.cpp b/dnn/test/cuda/svd.cpp
index 706df2ce..9c071d6c 100644
--- a/dnn/test/cuda/svd.cpp
+++ b/dnn/test/cuda/svd.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/svd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/tensor_remap.cpp b/dnn/test/cuda/tensor_remap.cpp
index af3828be..123458b0 100644
--- a/dnn/test/cuda/tensor_remap.cpp
+++ b/dnn/test/cuda/tensor_remap.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/tensor_remap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/tile.cpp b/dnn/test/cuda/tile.cpp
index f5211d29..277a788c 100644
--- a/dnn/test/cuda/tile.cpp
+++ b/dnn/test/cuda/tile.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/tile.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/timer.h b/dnn/test/cuda/timer.h
index aaa26dae..309d891c 100644
--- a/dnn/test/cuda/timer.h
+++ b/dnn/test/cuda/timer.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/timer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/topk.cpp b/dnn/test/cuda/topk.cpp
index 302e162a..33036442 100644
--- a/dnn/test/cuda/topk.cpp
+++ b/dnn/test/cuda/topk.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/topk.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/tqt.cpp b/dnn/test/cuda/tqt.cpp
index fdbce4db..2eab6f12 100644
--- a/dnn/test/cuda/tqt.cpp
+++ b/dnn/test/cuda/tqt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/tqt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/transpose.cpp b/dnn/test/cuda/transpose.cpp
index 79ffaca6..78b3b3a3 100644
--- a/dnn/test/cuda/transpose.cpp
+++ b/dnn/test/cuda/transpose.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/transpose.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/type_cvt.cpp b/dnn/test/cuda/type_cvt.cpp
index af481993..87dc654b 100644
--- a/dnn/test/cuda/type_cvt.cpp
+++ b/dnn/test/cuda/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/utils.cpp b/dnn/test/cuda/utils.cpp
index 175895f4..e04a0b7c 100644
--- a/dnn/test/cuda/utils.cpp
+++ b/dnn/test/cuda/utils.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/utils.h b/dnn/test/cuda/utils.h
index 3ce2379d..2484adbc 100644
--- a/dnn/test/cuda/utils.h
+++ b/dnn/test/cuda/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/warp_affine.cpp b/dnn/test/cuda/warp_affine.cpp
index 04617562..1c76cf86 100644
--- a/dnn/test/cuda/warp_affine.cpp
+++ b/dnn/test/cuda/warp_affine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/warp_affine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/cuda/warp_perspective.cpp b/dnn/test/cuda/warp_perspective.cpp
index 43241b8a..5c0d5547 100644
--- a/dnn/test/cuda/warp_perspective.cpp
+++ b/dnn/test/cuda/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/cuda/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/dispatcher/null.cpp b/dnn/test/dispatcher/null.cpp
index 6ab132c2..cc8a193d 100644
--- a/dnn/test/dispatcher/null.cpp
+++ b/dnn/test/dispatcher/null.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/dispatcher/null.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/dispatcher/warp_perspective.cpp b/dnn/test/dispatcher/warp_perspective.cpp
index e9ebd8ff..ab6cf78a 100644
--- a/dnn/test/dispatcher/warp_perspective.cpp
+++ b/dnn/test/dispatcher/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/dispatcher/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/concat.cpp b/dnn/test/fallback/concat.cpp
index c0a63d98..fd3cb590 100644
--- a/dnn/test/fallback/concat.cpp
+++ b/dnn/test/fallback/concat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/concat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/conv_bias.cpp b/dnn/test/fallback/conv_bias.cpp
index d00719f0..ee022652 100644
--- a/dnn/test/fallback/conv_bias.cpp
+++ b/dnn/test/fallback/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/convolution.cpp b/dnn/test/fallback/convolution.cpp
index 221f9537..7d253c9d 100644
--- a/dnn/test/fallback/convolution.cpp
+++ b/dnn/test/fallback/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/elemwise.cpp b/dnn/test/fallback/elemwise.cpp
index a4bb00a9..cace431b 100644
--- a/dnn/test/fallback/elemwise.cpp
+++ b/dnn/test/fallback/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/elemwise_multi_type.cpp b/dnn/test/fallback/elemwise_multi_type.cpp
index 4fb18606..a74b9b8a 100644
--- a/dnn/test/fallback/elemwise_multi_type.cpp
+++ b/dnn/test/fallback/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/fixture.cpp b/dnn/test/fallback/fixture.cpp
index 07b2c6ca..6cc98dd0 100644
--- a/dnn/test/fallback/fixture.cpp
+++ b/dnn/test/fallback/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/fixture.h b/dnn/test/fallback/fixture.h
index 06854128..d1bc64ab 100644
--- a/dnn/test/fallback/fixture.h
+++ b/dnn/test/fallback/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/flip.cpp b/dnn/test/fallback/flip.cpp
index f8d5ad36..ec1e3ce4 100644
--- a/dnn/test/fallback/flip.cpp
+++ b/dnn/test/fallback/flip.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/flip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/gaussian_blur.cpp b/dnn/test/fallback/gaussian_blur.cpp
index b8df5693..290b72f8 100644
--- a/dnn/test/fallback/gaussian_blur.cpp
+++ b/dnn/test/fallback/gaussian_blur.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/gaussian_blur.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/matrix_mul.cpp b/dnn/test/fallback/matrix_mul.cpp
index 682f2e19..5f1cc3ae 100644
--- a/dnn/test/fallback/matrix_mul.cpp
+++ b/dnn/test/fallback/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/powc.cpp b/dnn/test/fallback/powc.cpp
index 72e3b705..83ad26ac 100644
--- a/dnn/test/fallback/powc.cpp
+++ b/dnn/test/fallback/powc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/powc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/reduce.cpp b/dnn/test/fallback/reduce.cpp
index 72f075fa..303b58de 100644
--- a/dnn/test/fallback/reduce.cpp
+++ b/dnn/test/fallback/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/relayout.cpp b/dnn/test/fallback/relayout.cpp
index ac0990a4..590c647a 100644
--- a/dnn/test/fallback/relayout.cpp
+++ b/dnn/test/fallback/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/repeat.cpp b/dnn/test/fallback/repeat.cpp
index d6cb58e0..3bf546da 100644
--- a/dnn/test/fallback/repeat.cpp
+++ b/dnn/test/fallback/repeat.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/repeat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/resize.cpp b/dnn/test/fallback/resize.cpp
index d2ae1969..6b8d9110 100644
--- a/dnn/test/fallback/resize.cpp
+++ b/dnn/test/fallback/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/roi_copy.cpp b/dnn/test/fallback/roi_copy.cpp
index e383d86c..491607e4 100644
--- a/dnn/test/fallback/roi_copy.cpp
+++ b/dnn/test/fallback/roi_copy.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/roi_copy.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/rotate.cpp b/dnn/test/fallback/rotate.cpp
index 5a10c910..fab08228 100644
--- a/dnn/test/fallback/rotate.cpp
+++ b/dnn/test/fallback/rotate.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/rotate.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/split.cpp b/dnn/test/fallback/split.cpp
index 68afa5b7..a52fac9d 100644
--- a/dnn/test/fallback/split.cpp
+++ b/dnn/test/fallback/split.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/split.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/tile.cpp b/dnn/test/fallback/tile.cpp
index 5a548c7d..2f2144d8 100644
--- a/dnn/test/fallback/tile.cpp
+++ b/dnn/test/fallback/tile.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/tile.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/type_cvt.cpp b/dnn/test/fallback/type_cvt.cpp
index 33dc0b64..4441e6d5 100644
--- a/dnn/test/fallback/type_cvt.cpp
+++ b/dnn/test/fallback/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/fallback/warp_perspective.cpp b/dnn/test/fallback/warp_perspective.cpp
index 97951a57..0678689b 100644
--- a/dnn/test/fallback/warp_perspective.cpp
+++ b/dnn/test/fallback/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/fallback/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/gtest_main.cpp b/dnn/test/gtest_main.cpp
index 2d2fcd8f..011ed4f9 100644
--- a/dnn/test/gtest_main.cpp
+++ b/dnn/test/gtest_main.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/gtest_main.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/main.cpp b/dnn/test/main.cpp
index 41b0a7c3..c2f391f0 100644
--- a/dnn/test/main.cpp
+++ b/dnn/test/main.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/main.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/add_update.cpp b/dnn/test/naive/add_update.cpp
index c0f52362..10b9ff7b 100644
--- a/dnn/test/naive/add_update.cpp
+++ b/dnn/test/naive/add_update.cpp
@@ -2,7 +2,7 @@
  * \file test/naive/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/conv_bias.cpp b/dnn/test/naive/conv_bias.cpp
index a1ff4a7a..c189489a 100644
--- a/dnn/test/naive/conv_bias.cpp
+++ b/dnn/test/naive/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/convolution.cpp b/dnn/test/naive/convolution.cpp
index 761cd922..a80ac385 100644
--- a/dnn/test/naive/convolution.cpp
+++ b/dnn/test/naive/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/cvt_color.cpp b/dnn/test/naive/cvt_color.cpp
index 8853762e..46b11f20 100644
--- a/dnn/test/naive/cvt_color.cpp
+++ b/dnn/test/naive/cvt_color.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/cvt_color.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/dct.cpp b/dnn/test/naive/dct.cpp
index 620e0a82..2f29234f 100644
--- a/dnn/test/naive/dct.cpp
+++ b/dnn/test/naive/dct.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/dct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/deformable_conv.cpp b/dnn/test/naive/deformable_conv.cpp
index d75fe57f..ae1f0e1d 100644
--- a/dnn/test/naive/deformable_conv.cpp
+++ b/dnn/test/naive/deformable_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/deformable_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/deformable_ps_roi_pooling.cpp b/dnn/test/naive/deformable_ps_roi_pooling.cpp
index 5e9db1c3..7b4a9b85 100644
--- a/dnn/test/naive/deformable_ps_roi_pooling.cpp
+++ b/dnn/test/naive/deformable_ps_roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/deformable_ps_roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/elemwise_multi_type.cpp b/dnn/test/naive/elemwise_multi_type.cpp
index 00721e50..4423420f 100644
--- a/dnn/test/naive/elemwise_multi_type.cpp
+++ b/dnn/test/naive/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/fixture.cpp b/dnn/test/naive/fixture.cpp
index f1ba93fd..5f274db5 100644
--- a/dnn/test/naive/fixture.cpp
+++ b/dnn/test/naive/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/fixture.h b/dnn/test/naive/fixture.h
index 6606aa26..79828904 100644
--- a/dnn/test/naive/fixture.h
+++ b/dnn/test/naive/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/matrix_inverse.cpp b/dnn/test/naive/matrix_inverse.cpp
index e48c2207..2752fdc1 100644
--- a/dnn/test/naive/matrix_inverse.cpp
+++ b/dnn/test/naive/matrix_inverse.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/matrix_inverse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/matrix_mul.cpp b/dnn/test/naive/matrix_mul.cpp
index a4fe85e9..eaccf86f 100644
--- a/dnn/test/naive/matrix_mul.cpp
+++ b/dnn/test/naive/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/mesh_indexing.cpp b/dnn/test/naive/mesh_indexing.cpp
index dc598d72..94bd7d51 100644
--- a/dnn/test/naive/mesh_indexing.cpp
+++ b/dnn/test/naive/mesh_indexing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/mesh_indexing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/pooling.cpp b/dnn/test/naive/pooling.cpp
index 9d651e48..803b9c16 100644
--- a/dnn/test/naive/pooling.cpp
+++ b/dnn/test/naive/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/reduce.cpp b/dnn/test/naive/reduce.cpp
index eda8d3b6..6e13b1fd 100644
--- a/dnn/test/naive/reduce.cpp
+++ b/dnn/test/naive/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/relayout_format.cpp b/dnn/test/naive/relayout_format.cpp
index cfb750d5..8165d273 100644
--- a/dnn/test/naive/relayout_format.cpp
+++ b/dnn/test/naive/relayout_format.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/relayout_format.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/resize.cpp b/dnn/test/naive/resize.cpp
index e79ff4d8..8e21322e 100644
--- a/dnn/test/naive/resize.cpp
+++ b/dnn/test/naive/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/rng.cpp b/dnn/test/naive/rng.cpp
index 8b4e5d2b..a5240eca 100644
--- a/dnn/test/naive/rng.cpp
+++ b/dnn/test/naive/rng.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/rng.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/rng.h b/dnn/test/naive/rng.h
index 1eb2e671..89e3c0ad 100644
--- a/dnn/test/naive/rng.h
+++ b/dnn/test/naive/rng.h
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/rng.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/svd.cpp b/dnn/test/naive/svd.cpp
index 7669e861..5b65680a 100644
--- a/dnn/test/naive/svd.cpp
+++ b/dnn/test/naive/svd.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/svd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/type_cvt.cpp b/dnn/test/naive/type_cvt.cpp
index dfcfee8a..7348eef5 100644
--- a/dnn/test/naive/type_cvt.cpp
+++ b/dnn/test/naive/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/warp_afffine.cpp b/dnn/test/naive/warp_afffine.cpp
index 861d9b41..7ee5eeec 100644
--- a/dnn/test/naive/warp_afffine.cpp
+++ b/dnn/test/naive/warp_afffine.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/warp_afffine.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/naive/warp_perspective.cpp b/dnn/test/naive/warp_perspective.cpp
index 2168853b..b70c8cad 100644
--- a/dnn/test/naive/warp_perspective.cpp
+++ b/dnn/test/naive/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/naive/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/add_update.cpp b/dnn/test/rocm/add_update.cpp
index 13c32b0f..2d4fcd62 100644
--- a/dnn/test/rocm/add_update.cpp
+++ b/dnn/test/rocm/add_update.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/argmxx.cpp b/dnn/test/rocm/argmxx.cpp
index 1fada4e5..9dcf1d6f 100644
--- a/dnn/test/rocm/argmxx.cpp
+++ b/dnn/test/rocm/argmxx.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/argmxx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/batched_matrix_mul.cpp b/dnn/test/rocm/batched_matrix_mul.cpp
index 1c91a1df..fe97718a 100644
--- a/dnn/test/rocm/batched_matrix_mul.cpp
+++ b/dnn/test/rocm/batched_matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/batched_matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/benchmark.cpp b/dnn/test/rocm/benchmark.cpp
index 766b8484..2d00f7e7 100644
--- a/dnn/test/rocm/benchmark.cpp
+++ b/dnn/test/rocm/benchmark.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/benchmark.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/benchmarker.h b/dnn/test/rocm/benchmarker.h
index 9d508d4e..f5397b63 100644
--- a/dnn/test/rocm/benchmarker.h
+++ b/dnn/test/rocm/benchmarker.h
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/benchmarker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/benchmarker.inl b/dnn/test/rocm/benchmarker.inl
index 2784e5aa..d154a66b 100644
--- a/dnn/test/rocm/benchmarker.inl
+++ b/dnn/test/rocm/benchmarker.inl
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/benchmarker.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/bn.cpp b/dnn/test/rocm/bn.cpp
index b84b2ae0..59f8091c 100644
--- a/dnn/test/rocm/bn.cpp
+++ b/dnn/test/rocm/bn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/bn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/chanwise_convolution.cpp b/dnn/test/rocm/chanwise_convolution.cpp
index bc6f318b..0470c362 100644
--- a/dnn/test/rocm/chanwise_convolution.cpp
+++ b/dnn/test/rocm/chanwise_convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/chanwise_convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/checksum.cpp b/dnn/test/rocm/checksum.cpp
index e34ab661..2a74021f 100644
--- a/dnn/test/rocm/checksum.cpp
+++ b/dnn/test/rocm/checksum.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/checksum.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/convolution.cpp b/dnn/test/rocm/convolution.cpp
index 014b238d..b2571591 100644
--- a/dnn/test/rocm/convolution.cpp
+++ b/dnn/test/rocm/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/elemwise.cpp b/dnn/test/rocm/elemwise.cpp
index 0ceaa96a..2f95fbd9 100644
--- a/dnn/test/rocm/elemwise.cpp
+++ b/dnn/test/rocm/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/eye.cpp b/dnn/test/rocm/eye.cpp
index c900d85d..7278e971 100644
--- a/dnn/test/rocm/eye.cpp
+++ b/dnn/test/rocm/eye.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/eye.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/fixture.cpp b/dnn/test/rocm/fixture.cpp
index ea11b53b..78c93e5b 100644
--- a/dnn/test/rocm/fixture.cpp
+++ b/dnn/test/rocm/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/fixture.h b/dnn/test/rocm/fixture.h
index 5b02ed25..140ac5a5 100644
--- a/dnn/test/rocm/fixture.h
+++ b/dnn/test/rocm/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/indexing_multi_axis_vec.cpp b/dnn/test/rocm/indexing_multi_axis_vec.cpp
index 12d4834e..bc0fb6ab 100644
--- a/dnn/test/rocm/indexing_multi_axis_vec.cpp
+++ b/dnn/test/rocm/indexing_multi_axis_vec.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/indexing_multi_axis_vec.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/indexing_one_hot.cpp b/dnn/test/rocm/indexing_one_hot.cpp
index a84b9a16..93314033 100644
--- a/dnn/test/rocm/indexing_one_hot.cpp
+++ b/dnn/test/rocm/indexing_one_hot.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/indexing_one_hot.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/linspace.cpp b/dnn/test/rocm/linspace.cpp
index 9c9b7760..14ba9bc1 100644
--- a/dnn/test/rocm/linspace.cpp
+++ b/dnn/test/rocm/linspace.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/linspace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/matrix_mul.cpp b/dnn/test/rocm/matrix_mul.cpp
index 87a2d2e0..a40d1686 100644
--- a/dnn/test/rocm/matrix_mul.cpp
+++ b/dnn/test/rocm/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/megcore/computing.cpp b/dnn/test/rocm/megcore/computing.cpp
index 7a548aeb..b4d04d9a 100644
--- a/dnn/test/rocm/megcore/computing.cpp
+++ b/dnn/test/rocm/megcore/computing.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/megcore/computing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/megcore/device.cpp b/dnn/test/rocm/megcore/device.cpp
index f6edf9f8..3ba41f09 100644
--- a/dnn/test/rocm/megcore/device.cpp
+++ b/dnn/test/rocm/megcore/device.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/megcore/device.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/megcore/fixture.cpp b/dnn/test/rocm/megcore/fixture.cpp
index c6a174c5..8421a21c 100644
--- a/dnn/test/rocm/megcore/fixture.cpp
+++ b/dnn/test/rocm/megcore/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/megcore/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/megcore/fixture.h b/dnn/test/rocm/megcore/fixture.h
index 6e913a90..1aa5ddaf 100644
--- a/dnn/test/rocm/megcore/fixture.h
+++ b/dnn/test/rocm/megcore/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/megcore/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/pooling.cpp b/dnn/test/rocm/pooling.cpp
index 08cee8ce..972d48ef 100644
--- a/dnn/test/rocm/pooling.cpp
+++ b/dnn/test/rocm/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/powc.cpp b/dnn/test/rocm/powc.cpp
index 21e18309..c0b3e7c8 100644
--- a/dnn/test/rocm/powc.cpp
+++ b/dnn/test/rocm/powc.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/powc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/reduce.cpp b/dnn/test/rocm/reduce.cpp
index 690e75e5..6337ae80 100644
--- a/dnn/test/rocm/reduce.cpp
+++ b/dnn/test/rocm/reduce.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/reduce.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/relayout.cpp b/dnn/test/rocm/relayout.cpp
index 949960ea..73aeb530 100644
--- a/dnn/test/rocm/relayout.cpp
+++ b/dnn/test/rocm/relayout.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/relayout.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/rng.cpp b/dnn/test/rocm/rng.cpp
index 70c1bcfa..1030423c 100644
--- a/dnn/test/rocm/rng.cpp
+++ b/dnn/test/rocm/rng.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/rng.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/sleep.cpp b/dnn/test/rocm/sleep.cpp
index 90c62d5d..4f7d3aa1 100644
--- a/dnn/test/rocm/sleep.cpp
+++ b/dnn/test/rocm/sleep.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/sleep.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/type_cvt.cpp b/dnn/test/rocm/type_cvt.cpp
index a89560d8..0ca5eeb7 100644
--- a/dnn/test/rocm/type_cvt.cpp
+++ b/dnn/test/rocm/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/rocm/utils.h b/dnn/test/rocm/utils.h
index ca3aef05..9c8fcc34 100644
--- a/dnn/test/rocm/utils.h
+++ b/dnn/test/rocm/utils.h
@@ -2,7 +2,7 @@
  * \file dnn/test/rocm/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/add_update.cpp b/dnn/test/x86/add_update.cpp
index 0f3c3ef5..17e1a50e 100644
--- a/dnn/test/x86/add_update.cpp
+++ b/dnn/test/x86/add_update.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/conv_bias.cpp b/dnn/test/x86/conv_bias.cpp
index d7669c4b..247ee073 100644
--- a/dnn/test/x86/conv_bias.cpp
+++ b/dnn/test/x86/conv_bias.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/conv_bias.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/convolution.cpp b/dnn/test/x86/convolution.cpp
index 9d42b500..4631f78c 100644
--- a/dnn/test/x86/convolution.cpp
+++ b/dnn/test/x86/convolution.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/cpuinfo.cpp b/dnn/test/x86/cpuinfo.cpp
index b6737549..dd7c3a92 100644
--- a/dnn/test/x86/cpuinfo.cpp
+++ b/dnn/test/x86/cpuinfo.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/cpuinfo.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/cvt_color.cpp b/dnn/test/x86/cvt_color.cpp
index d20e7bfd..35f1dfc4 100644
--- a/dnn/test/x86/cvt_color.cpp
+++ b/dnn/test/x86/cvt_color.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/cvt_color.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/elemwise.cpp b/dnn/test/x86/elemwise.cpp
index 2d85f108..e29926a5 100644
--- a/dnn/test/x86/elemwise.cpp
+++ b/dnn/test/x86/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/elemwise_bmark.cpp b/dnn/test/x86/elemwise_bmark.cpp
index 8a492076..a0da3bce 100644
--- a/dnn/test/x86/elemwise_bmark.cpp
+++ b/dnn/test/x86/elemwise_bmark.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/elemwise_bmark.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/elemwise_multi_type.cpp b/dnn/test/x86/elemwise_multi_type.cpp
index 2431dc36..743fb0ca 100644
--- a/dnn/test/x86/elemwise_multi_type.cpp
+++ b/dnn/test/x86/elemwise_multi_type.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/elemwise_multi_type.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/fixture.cpp b/dnn/test/x86/fixture.cpp
index 86683d3f..cab773ed 100644
--- a/dnn/test/x86/fixture.cpp
+++ b/dnn/test/x86/fixture.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/fixture.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/fixture.h b/dnn/test/x86/fixture.h
index 822c3be3..ff6321cc 100644
--- a/dnn/test/x86/fixture.h
+++ b/dnn/test/x86/fixture.h
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/fixture.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/gaussian_blur.cpp b/dnn/test/x86/gaussian_blur.cpp
index b757acd2..42f6b82e 100644
--- a/dnn/test/x86/gaussian_blur.cpp
+++ b/dnn/test/x86/gaussian_blur.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/gaussian_blur.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/lrn.cpp b/dnn/test/x86/lrn.cpp
index 0aa9bc12..a6cd3ba3 100644
--- a/dnn/test/x86/lrn.cpp
+++ b/dnn/test/x86/lrn.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/lrn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/matrix_mul.cpp b/dnn/test/x86/matrix_mul.cpp
index 4ce8f198..356d69c4 100644
--- a/dnn/test/x86/matrix_mul.cpp
+++ b/dnn/test/x86/matrix_mul.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/matrix_mul.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/pooling.cpp b/dnn/test/x86/pooling.cpp
index a4873d4b..3abfd6f7 100644
--- a/dnn/test/x86/pooling.cpp
+++ b/dnn/test/x86/pooling.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/resize.cpp b/dnn/test/x86/resize.cpp
index 6ed1c86d..b7ceb826 100644
--- a/dnn/test/x86/resize.cpp
+++ b/dnn/test/x86/resize.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/resize.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/separable_conv.cpp b/dnn/test/x86/separable_conv.cpp
index 667b4c94..e1344ce5 100644
--- a/dnn/test/x86/separable_conv.cpp
+++ b/dnn/test/x86/separable_conv.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/separable_conv.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/separable_filter.cpp b/dnn/test/x86/separable_filter.cpp
index 8aee1ae2..82eebbf2 100644
--- a/dnn/test/x86/separable_filter.cpp
+++ b/dnn/test/x86/separable_filter.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/separable_filter.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/type_cvt.cpp b/dnn/test/x86/type_cvt.cpp
index 94f69318..9d6333a8 100644
--- a/dnn/test/x86/type_cvt.cpp
+++ b/dnn/test/x86/type_cvt.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/type_cvt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/dnn/test/x86/warp_perspective.cpp b/dnn/test/x86/warp_perspective.cpp
index cd488ac8..f523b517 100644
--- a/dnn/test/x86/warp_perspective.cpp
+++ b/dnn/test/x86/warp_perspective.cpp
@@ -2,7 +2,7 @@
  * \file dnn/test/x86/warp_perspective.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/__init__.py b/imperative/python/megengine/__init__.py
index f5749183..320aa125 100644
--- a/imperative/python/megengine/__init__.py
+++ b/imperative/python/megengine/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/autodiff/__init__.py b/imperative/python/megengine/autodiff/__init__.py
index 10553b39..c9b06220 100644
--- a/imperative/python/megengine/autodiff/__init__.py
+++ b/imperative/python/megengine/autodiff/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/__init__.py b/imperative/python/megengine/core/__init__.py
index 8b2d111a..5de7a67d 100644
--- a/imperative/python/megengine/core/__init__.py
+++ b/imperative/python/megengine/core/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/_trace_option.py b/imperative/python/megengine/core/_trace_option.py
index 4e952220..b580d346 100644
--- a/imperative/python/megengine/core/_trace_option.py
+++ b/imperative/python/megengine/core/_trace_option.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/_wrap.py b/imperative/python/megengine/core/_wrap.py
index c9a422fd..7f57120c 100644
--- a/imperative/python/megengine/core/_wrap.py
+++ b/imperative/python/megengine/core/_wrap.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/autodiff/__init__.py b/imperative/python/megengine/core/autodiff/__init__.py
index 1207b5d9..0253e7dc 100644
--- a/imperative/python/megengine/core/autodiff/__init__.py
+++ b/imperative/python/megengine/core/autodiff/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/autodiff/grad.py b/imperative/python/megengine/core/autodiff/grad.py
index 5fc67809..fbd5d2a6 100644
--- a/imperative/python/megengine/core/autodiff/grad.py
+++ b/imperative/python/megengine/core/autodiff/grad.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/ops/__init__.py b/imperative/python/megengine/core/ops/__init__.py
index 1207b5d9..0253e7dc 100644
--- a/imperative/python/megengine/core/ops/__init__.py
+++ b/imperative/python/megengine/core/ops/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/ops/builtin/__init__.py b/imperative/python/megengine/core/ops/builtin/__init__.py
index 38697071..2029f277 100644
--- a/imperative/python/megengine/core/ops/builtin/__init__.py
+++ b/imperative/python/megengine/core/ops/builtin/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/ops/special.py b/imperative/python/megengine/core/ops/special.py
index 54013280..1e496c1c 100644
--- a/imperative/python/megengine/core/ops/special.py
+++ b/imperative/python/megengine/core/ops/special.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/__init__.py b/imperative/python/megengine/core/tensor/__init__.py
index 1207b5d9..0253e7dc 100644
--- a/imperative/python/megengine/core/tensor/__init__.py
+++ b/imperative/python/megengine/core/tensor/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/array_method.py b/imperative/python/megengine/core/tensor/array_method.py
index eb417a75..ed032ae1 100644
--- a/imperative/python/megengine/core/tensor/array_method.py
+++ b/imperative/python/megengine/core/tensor/array_method.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/core.py b/imperative/python/megengine/core/tensor/core.py
index a74616cf..80cf7a59 100644
--- a/imperative/python/megengine/core/tensor/core.py
+++ b/imperative/python/megengine/core/tensor/core.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/dtype.py b/imperative/python/megengine/core/tensor/dtype.py
index 0fbcab9f..ccbdd901 100644
--- a/imperative/python/megengine/core/tensor/dtype.py
+++ b/imperative/python/megengine/core/tensor/dtype.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/indexing.py b/imperative/python/megengine/core/tensor/indexing.py
index 8bc4a75f..9f6f45af 100644
--- a/imperative/python/megengine/core/tensor/indexing.py
+++ b/imperative/python/megengine/core/tensor/indexing.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/megbrain_graph.py b/imperative/python/megengine/core/tensor/megbrain_graph.py
index 1063a767..5004cfb1 100644
--- a/imperative/python/megengine/core/tensor/megbrain_graph.py
+++ b/imperative/python/megengine/core/tensor/megbrain_graph.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/core/tensor/utils.py b/imperative/python/megengine/core/tensor/utils.py
index 8ff86f00..875147eb 100644
--- a/imperative/python/megengine/core/tensor/utils.py
+++ b/imperative/python/megengine/core/tensor/utils.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/__init__.py b/imperative/python/megengine/data/__init__.py
index 308a8907..19631dbc 100644
--- a/imperative/python/megengine/data/__init__.py
+++ b/imperative/python/megengine/data/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/_queue.py b/imperative/python/megengine/data/_queue.py
index b4c6e89e..9acd8396 100644
--- a/imperative/python/megengine/data/_queue.py
+++ b/imperative/python/megengine/data/_queue.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/collator.py b/imperative/python/megengine/data/collator.py
index 6242e767..270a93af 100644
--- a/imperative/python/megengine/data/collator.py
+++ b/imperative/python/megengine/data/collator.py
@@ -11,14 +11,14 @@
 # ---------------------------------------------------------------------
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
 # "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #
 # This file has been modified by Megvii ("Megvii Modifications").
-# All Megvii Modifications are Copyright (C) 2014-2020 Megvii Inc. All rights reserved.
+# All Megvii Modifications are Copyright (C) 2014-2021 Megvii Inc. All rights reserved.
 # ----------------------------------------------------------------------
 import collections.abc
 import re
diff --git a/imperative/python/megengine/data/dataloader.py b/imperative/python/megengine/data/dataloader.py
index 4c4a8368..deafaec3 100644
--- a/imperative/python/megengine/data/dataloader.py
+++ b/imperative/python/megengine/data/dataloader.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/__init__.py b/imperative/python/megengine/data/dataset/__init__.py
index 2d6fe2f1..8ce8556d 100644
--- a/imperative/python/megengine/data/dataset/__init__.py
+++ b/imperative/python/megengine/data/dataset/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/meta_dataset.py b/imperative/python/megengine/data/dataset/meta_dataset.py
index 8673b47c..779ab340 100644
--- a/imperative/python/megengine/data/dataset/meta_dataset.py
+++ b/imperative/python/megengine/data/dataset/meta_dataset.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/__init__.py b/imperative/python/megengine/data/dataset/vision/__init__.py
index dd2b0fc3..77d9c75e 100644
--- a/imperative/python/megengine/data/dataset/vision/__init__.py
+++ b/imperative/python/megengine/data/dataset/vision/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/cifar.py b/imperative/python/megengine/data/dataset/vision/cifar.py
index e969921d..d5ff83ca 100644
--- a/imperative/python/megengine/data/dataset/vision/cifar.py
+++ b/imperative/python/megengine/data/dataset/vision/cifar.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/cityscapes.py b/imperative/python/megengine/data/dataset/vision/cityscapes.py
index 894cce59..2602e1ca 100644
--- a/imperative/python/megengine/data/dataset/vision/cityscapes.py
+++ b/imperative/python/megengine/data/dataset/vision/cityscapes.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/coco.py b/imperative/python/megengine/data/dataset/vision/coco.py
index af813fc1..4cc13334 100644
--- a/imperative/python/megengine/data/dataset/vision/coco.py
+++ b/imperative/python/megengine/data/dataset/vision/coco.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/folder.py b/imperative/python/megengine/data/dataset/vision/folder.py
index e16c32e5..ab44141a 100644
--- a/imperative/python/megengine/data/dataset/vision/folder.py
+++ b/imperative/python/megengine/data/dataset/vision/folder.py
@@ -6,14 +6,14 @@
 # ---------------------------------------------------------------------
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
 # "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #
 # This file has been modified by Megvii ("Megvii Modifications").
-# All Megvii Modifications are Copyright (C) 2014-2020 Megvii Inc. All rights reserved.
+# All Megvii Modifications are Copyright (C) 2014-2021 Megvii Inc. All rights reserved.
 # ---------------------------------------------------------------------
 import os
 from typing import Dict, List, Tuple
diff --git a/imperative/python/megengine/data/dataset/vision/imagenet.py b/imperative/python/megengine/data/dataset/vision/imagenet.py
index e84dcddf..a5371eeb 100644
--- a/imperative/python/megengine/data/dataset/vision/imagenet.py
+++ b/imperative/python/megengine/data/dataset/vision/imagenet.py
@@ -6,14 +6,14 @@
 # ---------------------------------------------------------------------
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
 # "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #
 # This file has been modified by Megvii ("Megvii Modifications").
-# All Megvii Modifications are Copyright (C) 2014-2020 Megvii Inc. All rights reserved.
+# All Megvii Modifications are Copyright (C) 2014-2021 Megvii Inc. All rights reserved.
 # ---------------------------------------------------------------------
 import os
 import shutil
diff --git a/imperative/python/megengine/data/dataset/vision/meta_vision.py b/imperative/python/megengine/data/dataset/vision/meta_vision.py
index f89df740..aac81592 100644
--- a/imperative/python/megengine/data/dataset/vision/meta_vision.py
+++ b/imperative/python/megengine/data/dataset/vision/meta_vision.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/mnist.py b/imperative/python/megengine/data/dataset/vision/mnist.py
index 665fb693..278d749b 100644
--- a/imperative/python/megengine/data/dataset/vision/mnist.py
+++ b/imperative/python/megengine/data/dataset/vision/mnist.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/objects365.py b/imperative/python/megengine/data/dataset/vision/objects365.py
index da4d2adf..12643ec5 100644
--- a/imperative/python/megengine/data/dataset/vision/objects365.py
+++ b/imperative/python/megengine/data/dataset/vision/objects365.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/utils.py b/imperative/python/megengine/data/dataset/vision/utils.py
index 9a028d9c..ed077842 100644
--- a/imperative/python/megengine/data/dataset/vision/utils.py
+++ b/imperative/python/megengine/data/dataset/vision/utils.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/dataset/vision/voc.py b/imperative/python/megengine/data/dataset/vision/voc.py
index 142b7e42..628b51e0 100644
--- a/imperative/python/megengine/data/dataset/vision/voc.py
+++ b/imperative/python/megengine/data/dataset/vision/voc.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/sampler.py b/imperative/python/megengine/data/sampler.py
index 3d6f4baf..1646cd4d 100644
--- a/imperative/python/megengine/data/sampler.py
+++ b/imperative/python/megengine/data/sampler.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/transform/__init__.py b/imperative/python/megengine/data/transform/__init__.py
index 30424cbc..ba867831 100644
--- a/imperative/python/megengine/data/transform/__init__.py
+++ b/imperative/python/megengine/data/transform/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/transform/meta_transform.py b/imperative/python/megengine/data/transform/meta_transform.py
index 18951aaf..3549692b 100644
--- a/imperative/python/megengine/data/transform/meta_transform.py
+++ b/imperative/python/megengine/data/transform/meta_transform.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/transform/vision/__init__.py b/imperative/python/megengine/data/transform/vision/__init__.py
index d90c9e98..f0120381 100644
--- a/imperative/python/megengine/data/transform/vision/__init__.py
+++ b/imperative/python/megengine/data/transform/vision/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/transform/vision/functional.py b/imperative/python/megengine/data/transform/vision/functional.py
index d5b9ad51..0116a055 100644
--- a/imperative/python/megengine/data/transform/vision/functional.py
+++ b/imperative/python/megengine/data/transform/vision/functional.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/data/transform/vision/transform.py b/imperative/python/megengine/data/transform/vision/transform.py
index f4d6c7ff..7d2813ec 100644
--- a/imperative/python/megengine/data/transform/vision/transform.py
+++ b/imperative/python/megengine/data/transform/vision/transform.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/device.py b/imperative/python/megengine/device.py
index 36845d69..0ba39d47 100644
--- a/imperative/python/megengine/device.py
+++ b/imperative/python/megengine/device.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/__init__.py b/imperative/python/megengine/distributed/__init__.py
index 818829b1..8607256a 100644
--- a/imperative/python/megengine/distributed/__init__.py
+++ b/imperative/python/megengine/distributed/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/functional.py b/imperative/python/megengine/distributed/functional.py
index 02efd29c..b10ea5b3 100644
--- a/imperative/python/megengine/distributed/functional.py
+++ b/imperative/python/megengine/distributed/functional.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/group.py b/imperative/python/megengine/distributed/group.py
index aa52d8f4..1ccce0fa 100644
--- a/imperative/python/megengine/distributed/group.py
+++ b/imperative/python/megengine/distributed/group.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/helper.py b/imperative/python/megengine/distributed/helper.py
index 2d0131bb..0b65d411 100644
--- a/imperative/python/megengine/distributed/helper.py
+++ b/imperative/python/megengine/distributed/helper.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/launcher.py b/imperative/python/megengine/distributed/launcher.py
index f904babe..2ae38ed7 100644
--- a/imperative/python/megengine/distributed/launcher.py
+++ b/imperative/python/megengine/distributed/launcher.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/distributed/server.py b/imperative/python/megengine/distributed/server.py
index c686fad2..4e83c19a 100644
--- a/imperative/python/megengine/distributed/server.py
+++ b/imperative/python/megengine/distributed/server.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/__init__.py b/imperative/python/megengine/functional/__init__.py
index d8a856cc..3b1ac5a2 100644
--- a/imperative/python/megengine/functional/__init__.py
+++ b/imperative/python/megengine/functional/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/debug_param.py b/imperative/python/megengine/functional/debug_param.py
index df81206f..c9e042b0 100644
--- a/imperative/python/megengine/functional/debug_param.py
+++ b/imperative/python/megengine/functional/debug_param.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/distributed.py b/imperative/python/megengine/functional/distributed.py
index da28c194..3e18508e 100644
--- a/imperative/python/megengine/functional/distributed.py
+++ b/imperative/python/megengine/functional/distributed.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/elemwise.py b/imperative/python/megengine/functional/elemwise.py
index 878c427a..7f858d23 100644
--- a/imperative/python/megengine/functional/elemwise.py
+++ b/imperative/python/megengine/functional/elemwise.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/inplace.py b/imperative/python/megengine/functional/inplace.py
index ddd04a46..9a955900 100644
--- a/imperative/python/megengine/functional/inplace.py
+++ b/imperative/python/megengine/functional/inplace.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/loss.py b/imperative/python/megengine/functional/loss.py
index 9421ec67..76814fdd 100644
--- a/imperative/python/megengine/functional/loss.py
+++ b/imperative/python/megengine/functional/loss.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/math.py b/imperative/python/megengine/functional/math.py
index e40c18ad..0cbb32ec 100644
--- a/imperative/python/megengine/functional/math.py
+++ b/imperative/python/megengine/functional/math.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/nn.py b/imperative/python/megengine/functional/nn.py
index 0a61c4eb..91e46348 100644
--- a/imperative/python/megengine/functional/nn.py
+++ b/imperative/python/megengine/functional/nn.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/quantized.py b/imperative/python/megengine/functional/quantized.py
index 2949a90f..a6b8375a 100644
--- a/imperative/python/megengine/functional/quantized.py
+++ b/imperative/python/megengine/functional/quantized.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/tensor.py b/imperative/python/megengine/functional/tensor.py
index eec1ba2c..ba729c68 100644
--- a/imperative/python/megengine/functional/tensor.py
+++ b/imperative/python/megengine/functional/tensor.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/functional/utils.py b/imperative/python/megengine/functional/utils.py
index a4195c22..465ff20d 100644
--- a/imperative/python/megengine/functional/utils.py
+++ b/imperative/python/megengine/functional/utils.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/__init__.py b/imperative/python/megengine/hub/__init__.py
index f07c3979..ecb49771 100644
--- a/imperative/python/megengine/hub/__init__.py
+++ b/imperative/python/megengine/hub/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/const.py b/imperative/python/megengine/hub/const.py
index 5f53420b..8a6a36b6 100644
--- a/imperative/python/megengine/hub/const.py
+++ b/imperative/python/megengine/hub/const.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/exceptions.py b/imperative/python/megengine/hub/exceptions.py
index ede5c46c..07d08b2e 100644
--- a/imperative/python/megengine/hub/exceptions.py
+++ b/imperative/python/megengine/hub/exceptions.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/fetcher.py b/imperative/python/megengine/hub/fetcher.py
index 583f4121..9c755150 100644
--- a/imperative/python/megengine/hub/fetcher.py
+++ b/imperative/python/megengine/hub/fetcher.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/hub.py b/imperative/python/megengine/hub/hub.py
index 16edb634..aefa8307 100644
--- a/imperative/python/megengine/hub/hub.py
+++ b/imperative/python/megengine/hub/hub.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/hub/tools.py b/imperative/python/megengine/hub/tools.py
index bdc82d61..524db01a 100644
--- a/imperative/python/megengine/hub/tools.py
+++ b/imperative/python/megengine/hub/tools.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/jit/__init__.py b/imperative/python/megengine/jit/__init__.py
index 9a794b70..23521092 100644
--- a/imperative/python/megengine/jit/__init__.py
+++ b/imperative/python/megengine/jit/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/jit/sublinear_memory_config.py b/imperative/python/megengine/jit/sublinear_memory_config.py
index 54a22b18..a84fac4e 100644
--- a/imperative/python/megengine/jit/sublinear_memory_config.py
+++ b/imperative/python/megengine/jit/sublinear_memory_config.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/jit/tracing.py b/imperative/python/megengine/jit/tracing.py
index c63e3c01..1455acb5 100644
--- a/imperative/python/megengine/jit/tracing.py
+++ b/imperative/python/megengine/jit/tracing.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/logger.py b/imperative/python/megengine/logger.py
index 40a04c5c..49e53eca 100644
--- a/imperative/python/megengine/logger.py
+++ b/imperative/python/megengine/logger.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/__init__.py b/imperative/python/megengine/module/__init__.py
index f05e619b..d91095d5 100644
--- a/imperative/python/megengine/module/__init__.py
+++ b/imperative/python/megengine/module/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/activation.py b/imperative/python/megengine/module/activation.py
index 2f17fe9a..c65f2f25 100644
--- a/imperative/python/megengine/module/activation.py
+++ b/imperative/python/megengine/module/activation.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/adaptive_pooling.py b/imperative/python/megengine/module/adaptive_pooling.py
index ddd76571..8061f21b 100644
--- a/imperative/python/megengine/module/adaptive_pooling.py
+++ b/imperative/python/megengine/module/adaptive_pooling.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/batch_matmul_activation.py b/imperative/python/megengine/module/batch_matmul_activation.py
index bfb303bd..67bd98ac 100644
--- a/imperative/python/megengine/module/batch_matmul_activation.py
+++ b/imperative/python/megengine/module/batch_matmul_activation.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/batchnorm.py b/imperative/python/megengine/module/batchnorm.py
index 864162f1..f4d49895 100644
--- a/imperative/python/megengine/module/batchnorm.py
+++ b/imperative/python/megengine/module/batchnorm.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/concat.py b/imperative/python/megengine/module/concat.py
index 7eca519c..46eb1d6c 100644
--- a/imperative/python/megengine/module/concat.py
+++ b/imperative/python/megengine/module/concat.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/conv.py b/imperative/python/megengine/module/conv.py
index 144c50d9..24746365 100644
--- a/imperative/python/megengine/module/conv.py
+++ b/imperative/python/megengine/module/conv.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/conv_bn.py b/imperative/python/megengine/module/conv_bn.py
index 76713b0f..354156c8 100644
--- a/imperative/python/megengine/module/conv_bn.py
+++ b/imperative/python/megengine/module/conv_bn.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/dropout.py b/imperative/python/megengine/module/dropout.py
index 8bf6213f..f7e78317 100644
--- a/imperative/python/megengine/module/dropout.py
+++ b/imperative/python/megengine/module/dropout.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/elemwise.py b/imperative/python/megengine/module/elemwise.py
index a22b113f..9713557c 100644
--- a/imperative/python/megengine/module/elemwise.py
+++ b/imperative/python/megengine/module/elemwise.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/embedding.py b/imperative/python/megengine/module/embedding.py
index fb7bfa39..d5f93afd 100644
--- a/imperative/python/megengine/module/embedding.py
+++ b/imperative/python/megengine/module/embedding.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/identity.py b/imperative/python/megengine/module/identity.py
index a948d256..cdeb0e5b 100644
--- a/imperative/python/megengine/module/identity.py
+++ b/imperative/python/megengine/module/identity.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/init.py b/imperative/python/megengine/module/init.py
index a00d1562..52b11160 100644
--- a/imperative/python/megengine/module/init.py
+++ b/imperative/python/megengine/module/init.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/linear.py b/imperative/python/megengine/module/linear.py
index 34353783..a8544547 100644
--- a/imperative/python/megengine/module/linear.py
+++ b/imperative/python/megengine/module/linear.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/module.py b/imperative/python/megengine/module/module.py
index d7ca2c91..964bbef6 100644
--- a/imperative/python/megengine/module/module.py
+++ b/imperative/python/megengine/module/module.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/normalization.py b/imperative/python/megengine/module/normalization.py
index b3a29366..8c1a6849 100644
--- a/imperative/python/megengine/module/normalization.py
+++ b/imperative/python/megengine/module/normalization.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/pooling.py b/imperative/python/megengine/module/pooling.py
index b561038d..56e0948c 100644
--- a/imperative/python/megengine/module/pooling.py
+++ b/imperative/python/megengine/module/pooling.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/__init__.py b/imperative/python/megengine/module/qat/__init__.py
index 044cf61d..9a9295f9 100644
--- a/imperative/python/megengine/module/qat/__init__.py
+++ b/imperative/python/megengine/module/qat/__init__.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/batch_matmul_activation.py b/imperative/python/megengine/module/qat/batch_matmul_activation.py
index 774ea85a..732ef1a1 100644
--- a/imperative/python/megengine/module/qat/batch_matmul_activation.py
+++ b/imperative/python/megengine/module/qat/batch_matmul_activation.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/concat.py b/imperative/python/megengine/module/qat/concat.py
index a1f01893..fd856c05 100644
--- a/imperative/python/megengine/module/qat/concat.py
+++ b/imperative/python/megengine/module/qat/concat.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/conv.py b/imperative/python/megengine/module/qat/conv.py
index 6c646589..8e5fe408 100644
--- a/imperative/python/megengine/module/qat/conv.py
+++ b/imperative/python/megengine/module/qat/conv.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/conv_bn.py b/imperative/python/megengine/module/qat/conv_bn.py
index 4ad64d04..e87f2f29 100644
--- a/imperative/python/megengine/module/qat/conv_bn.py
+++ b/imperative/python/megengine/module/qat/conv_bn.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/elemwise.py b/imperative/python/megengine/module/qat/elemwise.py
index 16295281..14401954 100644
--- a/imperative/python/megengine/module/qat/elemwise.py
+++ b/imperative/python/megengine/module/qat/elemwise.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/linear.py b/imperative/python/megengine/module/qat/linear.py
index d0b454c0..598777d2 100644
--- a/imperative/python/megengine/module/qat/linear.py
+++ b/imperative/python/megengine/module/qat/linear.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/module.py b/imperative/python/megengine/module/qat/module.py
index 04da6000..b53a76d6 100644
--- a/imperative/python/megengine/module/qat/module.py
+++ b/imperative/python/megengine/module/qat/module.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/qat/quant_dequant.py b/imperative/python/megengine/module/qat/quant_dequant.py
index 0baa3e1c..3fd49c64 100644
--- a/imperative/python/megengine/module/qat/quant_dequant.py
+++ b/imperative/python/megengine/module/qat/quant_dequant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quant_dequant.py b/imperative/python/megengine/module/quant_dequant.py
index aaf2b0cc..8eda151f 100644
--- a/imperative/python/megengine/module/quant_dequant.py
+++ b/imperative/python/megengine/module/quant_dequant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/__init__.py b/imperative/python/megengine/module/quantized/__init__.py
index d7691eed..5c21359e 100644
--- a/imperative/python/megengine/module/quantized/__init__.py
+++ b/imperative/python/megengine/module/quantized/__init__.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/batch_matmul_activation.py b/imperative/python/megengine/module/quantized/batch_matmul_activation.py
index 2cdb7463..604a478d 100644
--- a/imperative/python/megengine/module/quantized/batch_matmul_activation.py
+++ b/imperative/python/megengine/module/quantized/batch_matmul_activation.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/concat.py b/imperative/python/megengine/module/quantized/concat.py
index 801627ca..a84e22cc 100644
--- a/imperative/python/megengine/module/quantized/concat.py
+++ b/imperative/python/megengine/module/quantized/concat.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/conv.py b/imperative/python/megengine/module/quantized/conv.py
index 260a40de..cda723ed 100644
--- a/imperative/python/megengine/module/quantized/conv.py
+++ b/imperative/python/megengine/module/quantized/conv.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/conv_bn.py b/imperative/python/megengine/module/quantized/conv_bn.py
index 162046e7..79fb5e7e 100644
--- a/imperative/python/megengine/module/quantized/conv_bn.py
+++ b/imperative/python/megengine/module/quantized/conv_bn.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/elemwise.py b/imperative/python/megengine/module/quantized/elemwise.py
index a5a55557..7285b6ce 100644
--- a/imperative/python/megengine/module/quantized/elemwise.py
+++ b/imperative/python/megengine/module/quantized/elemwise.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/linear.py b/imperative/python/megengine/module/quantized/linear.py
index c3c3c330..095e4501 100644
--- a/imperative/python/megengine/module/quantized/linear.py
+++ b/imperative/python/megengine/module/quantized/linear.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/module.py b/imperative/python/megengine/module/quantized/module.py
index 47e6da96..0f24b336 100644
--- a/imperative/python/megengine/module/quantized/module.py
+++ b/imperative/python/megengine/module/quantized/module.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/quantized/quant_dequant.py b/imperative/python/megengine/module/quantized/quant_dequant.py
index e4541674..1f6daae9 100644
--- a/imperative/python/megengine/module/quantized/quant_dequant.py
+++ b/imperative/python/megengine/module/quantized/quant_dequant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/module/sequential.py b/imperative/python/megengine/module/sequential.py
index c56770af..1cce1d4c 100644
--- a/imperative/python/megengine/module/sequential.py
+++ b/imperative/python/megengine/module/sequential.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/__init__.py b/imperative/python/megengine/optimizer/__init__.py
index ad783e06..19c5f6e5 100644
--- a/imperative/python/megengine/optimizer/__init__.py
+++ b/imperative/python/megengine/optimizer/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/adadelta.py b/imperative/python/megengine/optimizer/adadelta.py
index 24f009bc..73f73cf1 100644
--- a/imperative/python/megengine/optimizer/adadelta.py
+++ b/imperative/python/megengine/optimizer/adadelta.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/adagrad.py b/imperative/python/megengine/optimizer/adagrad.py
index 382a048d..3332518b 100644
--- a/imperative/python/megengine/optimizer/adagrad.py
+++ b/imperative/python/megengine/optimizer/adagrad.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/adam.py b/imperative/python/megengine/optimizer/adam.py
index 5e13ed77..13d490fa 100644
--- a/imperative/python/megengine/optimizer/adam.py
+++ b/imperative/python/megengine/optimizer/adam.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/lr_scheduler.py b/imperative/python/megengine/optimizer/lr_scheduler.py
index 5742dde0..ec4ab57f 100644
--- a/imperative/python/megengine/optimizer/lr_scheduler.py
+++ b/imperative/python/megengine/optimizer/lr_scheduler.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/multi_step_lr.py b/imperative/python/megengine/optimizer/multi_step_lr.py
index 7e8670cb..f21485ff 100644
--- a/imperative/python/megengine/optimizer/multi_step_lr.py
+++ b/imperative/python/megengine/optimizer/multi_step_lr.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/optimizer.py b/imperative/python/megengine/optimizer/optimizer.py
index f5135229..69ef5239 100644
--- a/imperative/python/megengine/optimizer/optimizer.py
+++ b/imperative/python/megengine/optimizer/optimizer.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/optimizer/sgd.py b/imperative/python/megengine/optimizer/sgd.py
index 0d61b13b..8a61ab88 100644
--- a/imperative/python/megengine/optimizer/sgd.py
+++ b/imperative/python/megengine/optimizer/sgd.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/__init__.py b/imperative/python/megengine/quantization/__init__.py
index 45245078..b21b3a63 100644
--- a/imperative/python/megengine/quantization/__init__.py
+++ b/imperative/python/megengine/quantization/__init__.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/fake_quant.py b/imperative/python/megengine/quantization/fake_quant.py
index 6b035d53..c1b8a491 100644
--- a/imperative/python/megengine/quantization/fake_quant.py
+++ b/imperative/python/megengine/quantization/fake_quant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/internal_fake_quant.py b/imperative/python/megengine/quantization/internal_fake_quant.py
index 1f246f48..013ddde7 100644
--- a/imperative/python/megengine/quantization/internal_fake_quant.py
+++ b/imperative/python/megengine/quantization/internal_fake_quant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/observer.py b/imperative/python/megengine/quantization/observer.py
index 466ae918..5d3c4ca9 100644
--- a/imperative/python/megengine/quantization/observer.py
+++ b/imperative/python/megengine/quantization/observer.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/qconfig.py b/imperative/python/megengine/quantization/qconfig.py
index 5eef6c32..a699b4b1 100644
--- a/imperative/python/megengine/quantization/qconfig.py
+++ b/imperative/python/megengine/quantization/qconfig.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #'
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/quantize.py b/imperative/python/megengine/quantization/quantize.py
index 09b6466d..1d11442a 100644
--- a/imperative/python/megengine/quantization/quantize.py
+++ b/imperative/python/megengine/quantization/quantize.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/quantization/utils.py b/imperative/python/megengine/quantization/utils.py
index 7f36c25b..f622ce0e 100644
--- a/imperative/python/megengine/quantization/utils.py
+++ b/imperative/python/megengine/quantization/utils.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/random/__init__.py b/imperative/python/megengine/random/__init__.py
index 709329fe..bedf4340 100644
--- a/imperative/python/megengine/random/__init__.py
+++ b/imperative/python/megengine/random/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/random/distribution.py b/imperative/python/megengine/random/distribution.py
index fc8c3fd5..268f6946 100644
--- a/imperative/python/megengine/random/distribution.py
+++ b/imperative/python/megengine/random/distribution.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/random/rng.py b/imperative/python/megengine/random/rng.py
index 8852955b..8cdfd0e1 100644
--- a/imperative/python/megengine/random/rng.py
+++ b/imperative/python/megengine/random/rng.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/serialization.py b/imperative/python/megengine/serialization.py
index e30903e2..a6a01ecd 100644
--- a/imperative/python/megengine/serialization.py
+++ b/imperative/python/megengine/serialization.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/tensor.py b/imperative/python/megengine/tensor.py
index c893a2eb..19979d45 100644
--- a/imperative/python/megengine/tensor.py
+++ b/imperative/python/megengine/tensor.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/__init__.py b/imperative/python/megengine/utils/__init__.py
index 1207b5d9..0253e7dc 100644
--- a/imperative/python/megengine/utils/__init__.py
+++ b/imperative/python/megengine/utils/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/_timed_func_fork_exec_entry.py b/imperative/python/megengine/utils/_timed_func_fork_exec_entry.py
index b962d365..2602700d 100644
--- a/imperative/python/megengine/utils/_timed_func_fork_exec_entry.py
+++ b/imperative/python/megengine/utils/_timed_func_fork_exec_entry.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/comp_graph_tools.py b/imperative/python/megengine/utils/comp_graph_tools.py
index 3b16a836..f4f1cfdc 100644
--- a/imperative/python/megengine/utils/comp_graph_tools.py
+++ b/imperative/python/megengine/utils/comp_graph_tools.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/compare_binary_iodump.py b/imperative/python/megengine/utils/compare_binary_iodump.py
index 40084dc1..b6be0ced 100755
--- a/imperative/python/megengine/utils/compare_binary_iodump.py
+++ b/imperative/python/megengine/utils/compare_binary_iodump.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/deprecation.py b/imperative/python/megengine/utils/deprecation.py
index 9b464878..f064bfbf 100644
--- a/imperative/python/megengine/utils/deprecation.py
+++ b/imperative/python/megengine/utils/deprecation.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/future.py b/imperative/python/megengine/utils/future.py
index 23ac3c4c..a593e3d7 100644
--- a/imperative/python/megengine/utils/future.py
+++ b/imperative/python/megengine/utils/future.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/hook.py b/imperative/python/megengine/utils/hook.py
index 9864a94a..cb4d313d 100644
--- a/imperative/python/megengine/utils/hook.py
+++ b/imperative/python/megengine/utils/hook.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/http_download.py b/imperative/python/megengine/utils/http_download.py
index b24e7c93..6cfcf97a 100644
--- a/imperative/python/megengine/utils/http_download.py
+++ b/imperative/python/megengine/utils/http_download.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/max_recursion_limit.py b/imperative/python/megengine/utils/max_recursion_limit.py
index eeb40fcd..9ac86845 100644
--- a/imperative/python/megengine/utils/max_recursion_limit.py
+++ b/imperative/python/megengine/utils/max_recursion_limit.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/net_stats.py b/imperative/python/megengine/utils/net_stats.py
index c8a81d99..68eced78 100644
--- a/imperative/python/megengine/utils/net_stats.py
+++ b/imperative/python/megengine/utils/net_stats.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/persistent_cache.py b/imperative/python/megengine/utils/persistent_cache.py
index 0f142b76..eda132c2 100644
--- a/imperative/python/megengine/utils/persistent_cache.py
+++ b/imperative/python/megengine/utils/persistent_cache.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/plugin.py b/imperative/python/megengine/utils/plugin.py
index 8167bfd1..a50634c2 100644
--- a/imperative/python/megengine/utils/plugin.py
+++ b/imperative/python/megengine/utils/plugin.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/profile_analyze.py b/imperative/python/megengine/utils/profile_analyze.py
index bfc7711e..6722670b 100755
--- a/imperative/python/megengine/utils/profile_analyze.py
+++ b/imperative/python/megengine/utils/profile_analyze.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/profile_analyzer.py b/imperative/python/megengine/utils/profile_analyzer.py
index 65bae7ce..fab2f4d6 100644
--- a/imperative/python/megengine/utils/profile_analyzer.py
+++ b/imperative/python/megengine/utils/profile_analyzer.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/profiler.py b/imperative/python/megengine/utils/profiler.py
index 5c67ee70..689e8c69 100644
--- a/imperative/python/megengine/utils/profiler.py
+++ b/imperative/python/megengine/utils/profiler.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/utils/tuple_function.py b/imperative/python/megengine/utils/tuple_function.py
index 91af43b8..01e77406 100644
--- a/imperative/python/megengine/utils/tuple_function.py
+++ b/imperative/python/megengine/utils/tuple_function.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/megengine/version.py b/imperative/python/megengine/version.py
index cdecff7b..956dfc44 100644
--- a/imperative/python/megengine/version.py
+++ b/imperative/python/megengine/version.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/setup.py b/imperative/python/setup.py
index a90dfab0..b09dba72 100644
--- a/imperative/python/setup.py
+++ b/imperative/python/setup.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/src/common.cpp b/imperative/python/src/common.cpp
index 35099e7f..5cede8a9 100644
--- a/imperative/python/src/common.cpp
+++ b/imperative/python/src/common.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/common.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/common.h b/imperative/python/src/common.h
index d5201b19..45f67891 100644
--- a/imperative/python/src/common.h
+++ b/imperative/python/src/common.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/grad.cpp b/imperative/python/src/grad.cpp
index cecdc0cb..80e37376 100644
--- a/imperative/python/src/grad.cpp
+++ b/imperative/python/src/grad.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/grad.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/grad.h b/imperative/python/src/grad.h
index 16a8299c..1780f311 100644
--- a/imperative/python/src/grad.h
+++ b/imperative/python/src/grad.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/grad.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/grad_info.h b/imperative/python/src/grad_info.h
index 9a1c9d93..b42356e6 100644
--- a/imperative/python/src/grad_info.h
+++ b/imperative/python/src/grad_info.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/grad_info.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/grad_override.cpp b/imperative/python/src/grad_override.cpp
index 7befb282..ccc5a507 100644
--- a/imperative/python/src/grad_override.cpp
+++ b/imperative/python/src/grad_override.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/grad_override.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/graph_rt.cpp b/imperative/python/src/graph_rt.cpp
index 170a9069..81fc7970 100644
--- a/imperative/python/src/graph_rt.cpp
+++ b/imperative/python/src/graph_rt.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/graph_rt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/graph_rt.h b/imperative/python/src/graph_rt.h
index a7ad80b1..0235ec49 100644
--- a/imperative/python/src/graph_rt.h
+++ b/imperative/python/src/graph_rt.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/graph_rt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/helper.cpp b/imperative/python/src/helper.cpp
index b7f9215f..b9ad570f 100644
--- a/imperative/python/src/helper.cpp
+++ b/imperative/python/src/helper.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/helper.h b/imperative/python/src/helper.h
index 8df0b5e3..07077af1 100644
--- a/imperative/python/src/helper.h
+++ b/imperative/python/src/helper.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/imperative_rt.cpp b/imperative/python/src/imperative_rt.cpp
index acf20758..ae679ecb 100644
--- a/imperative/python/src/imperative_rt.cpp
+++ b/imperative/python/src/imperative_rt.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/imperative_rt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/imperative_rt.h b/imperative/python/src/imperative_rt.h
index fdab13ca..c7562fe9 100644
--- a/imperative/python/src/imperative_rt.h
+++ b/imperative/python/src/imperative_rt.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/imperative_rt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/intrusive_list.h b/imperative/python/src/intrusive_list.h
index 9246dee0..703c6066 100644
--- a/imperative/python/src/intrusive_list.h
+++ b/imperative/python/src/intrusive_list.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/intrusive_list.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/module.cpp b/imperative/python/src/module.cpp
index 4ffed371..5075cc28 100644
--- a/imperative/python/src/module.cpp
+++ b/imperative/python/src/module.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/module.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/numpy_dtypes.cpp b/imperative/python/src/numpy_dtypes.cpp
index f652cf1e..c4d62a83 100644
--- a/imperative/python/src/numpy_dtypes.cpp
+++ b/imperative/python/src/numpy_dtypes.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/numpy_dtypes.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/numpy_dtypes.h b/imperative/python/src/numpy_dtypes.h
index 5c6fc864..7421815b 100644
--- a/imperative/python/src/numpy_dtypes.h
+++ b/imperative/python/src/numpy_dtypes.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/numpy_dtypes.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/numpy_dtypes_bfloat16.cpp b/imperative/python/src/numpy_dtypes_bfloat16.cpp
index b84f2d10..148fbeb0 100644
--- a/imperative/python/src/numpy_dtypes_bfloat16.cpp
+++ b/imperative/python/src/numpy_dtypes_bfloat16.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/numpy_dtypes_bfloat16.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/numpy_dtypes_intbx.cpp b/imperative/python/src/numpy_dtypes_intbx.cpp
index 302aaa5a..32907d78 100644
--- a/imperative/python/src/numpy_dtypes_intbx.cpp
+++ b/imperative/python/src/numpy_dtypes_intbx.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/numpy_dtypes_intbx.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/ops.cpp b/imperative/python/src/ops.cpp
index b5083e9c..edd7f43d 100644
--- a/imperative/python/src/ops.cpp
+++ b/imperative/python/src/ops.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/ops.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/ops.h b/imperative/python/src/ops.h
index eed111b1..1beba75b 100644
--- a/imperative/python/src/ops.h
+++ b/imperative/python/src/ops.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/ops.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/pyext17.h b/imperative/python/src/pyext17.h
index 63c161ea..feced951 100644
--- a/imperative/python/src/pyext17.h
+++ b/imperative/python/src/pyext17.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/pyext17.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/tensor.cpp b/imperative/python/src/tensor.cpp
index 57c8f8ff..a6fecc61 100644
--- a/imperative/python/src/tensor.cpp
+++ b/imperative/python/src/tensor.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/tensor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/tensor.h b/imperative/python/src/tensor.h
index 0345ed3f..2cd72132 100644
--- a/imperative/python/src/tensor.h
+++ b/imperative/python/src/tensor.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/tensor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/trace.cpp b/imperative/python/src/trace.cpp
index e9953863..3a477e24 100644
--- a/imperative/python/src/trace.cpp
+++ b/imperative/python/src/trace.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/trace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/trace.h b/imperative/python/src/trace.h
index ab56e860..05305848 100644
--- a/imperative/python/src/trace.h
+++ b/imperative/python/src/trace.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/trace.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/trace_info.h b/imperative/python/src/trace_info.h
index e41ecc6b..11736ca7 100644
--- a/imperative/python/src/trace_info.h
+++ b/imperative/python/src/trace_info.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/trace_info.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/utils.cpp b/imperative/python/src/utils.cpp
index 0e7274d9..b3e7c7f1 100644
--- a/imperative/python/src/utils.cpp
+++ b/imperative/python/src/utils.cpp
@@ -2,7 +2,7 @@
  * \file imperative/python/src/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/src/utils.h b/imperative/python/src/utils.h
index a1fcbce6..5778c6b7 100644
--- a/imperative/python/src/utils.h
+++ b/imperative/python/src/utils.h
@@ -2,7 +2,7 @@
  * \file imperative/python/src/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_advance_indexing.py b/imperative/python/test/integration/test_advance_indexing.py
index 8088d9f9..22e95340 100644
--- a/imperative/python/test/integration/test_advance_indexing.py
+++ b/imperative/python/test/integration/test_advance_indexing.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_ai.py b/imperative/python/test/integration/test_ai.py
index dd45616c..47a3216f 100644
--- a/imperative/python/test/integration/test_ai.py
+++ b/imperative/python/test/integration/test_ai.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_bn.py b/imperative/python/test/integration/test_bn.py
index 89e61dd6..84d92a35 100644
--- a/imperative/python/test/integration/test_bn.py
+++ b/imperative/python/test/integration/test_bn.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_converge.py b/imperative/python/test/integration/test_converge.py
index d16570c7..35de394b 100644
--- a/imperative/python/test/integration/test_converge.py
+++ b/imperative/python/test/integration/test_converge.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_converge_with_swap_and_drop.py b/imperative/python/test/integration/test_converge_with_swap_and_drop.py
index 3da5ae55..d36863ea 100644
--- a/imperative/python/test/integration/test_converge_with_swap_and_drop.py
+++ b/imperative/python/test/integration/test_converge_with_swap_and_drop.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_correctness.py b/imperative/python/test/integration/test_correctness.py
index 4ef30789..bdd6b326 100644
--- a/imperative/python/test/integration/test_correctness.py
+++ b/imperative/python/test/integration/test_correctness.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_detach.py b/imperative/python/test/integration/test_detach.py
index b441425d..368937b2 100644
--- a/imperative/python/test/integration/test_detach.py
+++ b/imperative/python/test/integration/test_detach.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_dp_correctness.py b/imperative/python/test/integration/test_dp_correctness.py
index 85dad2b4..173d4779 100644
--- a/imperative/python/test/integration/test_dp_correctness.py
+++ b/imperative/python/test/integration/test_dp_correctness.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_hello_world.py b/imperative/python/test/integration/test_hello_world.py
index d4922186..7dd55de8 100644
--- a/imperative/python/test/integration/test_hello_world.py
+++ b/imperative/python/test/integration/test_hello_world.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_lr_scheduler.py b/imperative/python/test/integration/test_lr_scheduler.py
index c3f42af9..31958bba 100644
--- a/imperative/python/test/integration/test_lr_scheduler.py
+++ b/imperative/python/test/integration/test_lr_scheduler.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_optimizer.py b/imperative/python/test/integration/test_optimizer.py
index c9e63da2..28b84fe8 100644
--- a/imperative/python/test/integration/test_optimizer.py
+++ b/imperative/python/test/integration/test_optimizer.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_param_pack.py b/imperative/python/test/integration/test_param_pack.py
index 44f1afed..ddb9222d 100644
--- a/imperative/python/test/integration/test_param_pack.py
+++ b/imperative/python/test/integration/test_param_pack.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_save_load.py b/imperative/python/test/integration/test_save_load.py
index cfa65680..96434d23 100644
--- a/imperative/python/test/integration/test_save_load.py
+++ b/imperative/python/test/integration/test_save_load.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_sgd_momentum.py b/imperative/python/test/integration/test_sgd_momentum.py
index 385dac24..5e53ee89 100644
--- a/imperative/python/test/integration/test_sgd_momentum.py
+++ b/imperative/python/test/integration/test_sgd_momentum.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/integration/test_trace_dump.py b/imperative/python/test/integration/test_trace_dump.py
index 73bad2f2..e0b876c5 100644
--- a/imperative/python/test/integration/test_trace_dump.py
+++ b/imperative/python/test/integration/test_trace_dump.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/autodiff/test_grad_manger.py b/imperative/python/test/unit/autodiff/test_grad_manger.py
index 0761d973..1dcd1b68 100644
--- a/imperative/python/test/unit/autodiff/test_grad_manger.py
+++ b/imperative/python/test/unit/autodiff/test_grad_manger.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_autodiff.py b/imperative/python/test/unit/core/test_autodiff.py
index 57808c8d..4f5e309d 100644
--- a/imperative/python/test/unit/core/test_autodiff.py
+++ b/imperative/python/test/unit/core/test_autodiff.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_dtype_bfloat16.py b/imperative/python/test/unit/core/test_dtype_bfloat16.py
index 510d179e..38b88597 100644
--- a/imperative/python/test/unit/core/test_dtype_bfloat16.py
+++ b/imperative/python/test/unit/core/test_dtype_bfloat16.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_dtype_intbx.py b/imperative/python/test/unit/core/test_dtype_intbx.py
index 1b3449e2..24a23607 100644
--- a/imperative/python/test/unit/core/test_dtype_intbx.py
+++ b/imperative/python/test/unit/core/test_dtype_intbx.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_dtype_quant.py b/imperative/python/test/unit/core/test_dtype_quant.py
index aa1bfbef..20e53dd7 100644
--- a/imperative/python/test/unit/core/test_dtype_quant.py
+++ b/imperative/python/test/unit/core/test_dtype_quant.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_function.py b/imperative/python/test/unit/core/test_function.py
index de409432..84153b58 100644
--- a/imperative/python/test/unit/core/test_function.py
+++ b/imperative/python/test/unit/core/test_function.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_imperative_rt.py b/imperative/python/test/unit/core/test_imperative_rt.py
index efc781e5..4934eecf 100644
--- a/imperative/python/test/unit/core/test_imperative_rt.py
+++ b/imperative/python/test/unit/core/test_imperative_rt.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_indexing_op.py b/imperative/python/test/unit/core/test_indexing_op.py
index 78df3f17..be4d918a 100644
--- a/imperative/python/test/unit/core/test_indexing_op.py
+++ b/imperative/python/test/unit/core/test_indexing_op.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_megbrain_graph.py b/imperative/python/test/unit/core/test_megbrain_graph.py
index 34f793e9..cdba3dc9 100644
--- a/imperative/python/test/unit/core/test_megbrain_graph.py
+++ b/imperative/python/test/unit/core/test_megbrain_graph.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_raw_tensor.py b/imperative/python/test/unit/core/test_raw_tensor.py
index 5f9aa887..c8a88453 100644
--- a/imperative/python/test/unit/core/test_raw_tensor.py
+++ b/imperative/python/test/unit/core/test_raw_tensor.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_serialization.py b/imperative/python/test/unit/core/test_serialization.py
index 5a5991ae..0a974fac 100644
--- a/imperative/python/test/unit/core/test_serialization.py
+++ b/imperative/python/test/unit/core/test_serialization.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_tensor_wrapper.py b/imperative/python/test/unit/core/test_tensor_wrapper.py
index 89274d4f..099dccca 100644
--- a/imperative/python/test/unit/core/test_tensor_wrapper.py
+++ b/imperative/python/test/unit/core/test_tensor_wrapper.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/core/test_util.py b/imperative/python/test/unit/core/test_util.py
index 414dbd21..c05d886c 100644
--- a/imperative/python/test/unit/core/test_util.py
+++ b/imperative/python/test/unit/core/test_util.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/data/test_dataloader.py b/imperative/python/test/unit/data/test_dataloader.py
index 4897e26e..59d68383 100644
--- a/imperative/python/test/unit/data/test_dataloader.py
+++ b/imperative/python/test/unit/data/test_dataloader.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/data/test_dataset.py b/imperative/python/test/unit/data/test_dataset.py
index 4df34921..3f0ce406 100644
--- a/imperative/python/test/unit/data/test_dataset.py
+++ b/imperative/python/test/unit/data/test_dataset.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/data/test_sampler.py b/imperative/python/test/unit/data/test_sampler.py
index bc399e86..081dba5d 100644
--- a/imperative/python/test/unit/data/test_sampler.py
+++ b/imperative/python/test/unit/data/test_sampler.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/data/test_transform.py b/imperative/python/test/unit/data/test_transform.py
index d438d8b5..7fce8bf0 100644
--- a/imperative/python/test/unit/data/test_transform.py
+++ b/imperative/python/test/unit/data/test_transform.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/distributed/test_distributed.py b/imperative/python/test/unit/distributed/test_distributed.py
index 2485d03e..cd3c8819 100644
--- a/imperative/python/test/unit/distributed/test_distributed.py
+++ b/imperative/python/test/unit/distributed/test_distributed.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_elemwise.py b/imperative/python/test/unit/functional/test_elemwise.py
index a089d006..88ed2538 100644
--- a/imperative/python/test/unit/functional/test_elemwise.py
+++ b/imperative/python/test/unit/functional/test_elemwise.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_functional.py b/imperative/python/test/unit/functional/test_functional.py
index 5b333f26..13223a80 100644
--- a/imperative/python/test/unit/functional/test_functional.py
+++ b/imperative/python/test/unit/functional/test_functional.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_functional_distributed.py b/imperative/python/test/unit/functional/test_functional_distributed.py
index 09125d56..cf93d6a8 100644
--- a/imperative/python/test/unit/functional/test_functional_distributed.py
+++ b/imperative/python/test/unit/functional/test_functional_distributed.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_loss.py b/imperative/python/test/unit/functional/test_loss.py
index 7774a9f0..a1ee43e4 100644
--- a/imperative/python/test/unit/functional/test_loss.py
+++ b/imperative/python/test/unit/functional/test_loss.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_math.py b/imperative/python/test/unit/functional/test_math.py
index 367b50a8..acff5858 100644
--- a/imperative/python/test/unit/functional/test_math.py
+++ b/imperative/python/test/unit/functional/test_math.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/functional/test_tensor.py b/imperative/python/test/unit/functional/test_tensor.py
index 235f1975..104ca6e7 100644
--- a/imperative/python/test/unit/functional/test_tensor.py
+++ b/imperative/python/test/unit/functional/test_tensor.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_activation.py b/imperative/python/test/unit/module/test_activation.py
index 8212b47e..993da4ea 100644
--- a/imperative/python/test/unit/module/test_activation.py
+++ b/imperative/python/test/unit/module/test_activation.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_batchnorm.py b/imperative/python/test/unit/module/test_batchnorm.py
index ba440820..c5224bd7 100644
--- a/imperative/python/test/unit/module/test_batchnorm.py
+++ b/imperative/python/test/unit/module/test_batchnorm.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_conv.py b/imperative/python/test/unit/module/test_conv.py
index 5d06e5de..6c51deb6 100644
--- a/imperative/python/test/unit/module/test_conv.py
+++ b/imperative/python/test/unit/module/test_conv.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_elemwise.py b/imperative/python/test/unit/module/test_elemwise.py
index f9b5094f..4e400797 100644
--- a/imperative/python/test/unit/module/test_elemwise.py
+++ b/imperative/python/test/unit/module/test_elemwise.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_external.py b/imperative/python/test/unit/module/test_external.py
index a39ea4a5..6b074f70 100644
--- a/imperative/python/test/unit/module/test_external.py
+++ b/imperative/python/test/unit/module/test_external.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_init.py b/imperative/python/test/unit/module/test_init.py
index e12acb3e..9f3a019e 100644
--- a/imperative/python/test/unit/module/test_init.py
+++ b/imperative/python/test/unit/module/test_init.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_module.py b/imperative/python/test/unit/module/test_module.py
index a38c227a..bff7d9ed 100644
--- a/imperative/python/test/unit/module/test_module.py
+++ b/imperative/python/test/unit/module/test_module.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_module_tensor.py b/imperative/python/test/unit/module/test_module_tensor.py
index 773bf373..bbc9698b 100644
--- a/imperative/python/test/unit/module/test_module_tensor.py
+++ b/imperative/python/test/unit/module/test_module_tensor.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/module/test_normalization.py b/imperative/python/test/unit/module/test_normalization.py
index 49e02803..f314f23d 100644
--- a/imperative/python/test/unit/module/test_normalization.py
+++ b/imperative/python/test/unit/module/test_normalization.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/quantization/test_fake_quant.py b/imperative/python/test/unit/quantization/test_fake_quant.py
index e0b0384d..a11edff3 100644
--- a/imperative/python/test/unit/quantization/test_fake_quant.py
+++ b/imperative/python/test/unit/quantization/test_fake_quant.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/quantization/test_quantize.py b/imperative/python/test/unit/quantization/test_quantize.py
index 0ce72422..65953543 100644
--- a/imperative/python/test/unit/quantization/test_quantize.py
+++ b/imperative/python/test/unit/quantization/test_quantize.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/test_cgtools.py b/imperative/python/test/unit/test_cgtools.py
index c263ad1f..0c240dce 100644
--- a/imperative/python/test/unit/test_cgtools.py
+++ b/imperative/python/test/unit/test_cgtools.py
@@ -1,6 +1,6 @@
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/python/test/unit/test_tracing.py b/imperative/python/test/unit/test_tracing.py
index ca0a5328..f3a570e1 100644
--- a/imperative/python/test/unit/test_tracing.py
+++ b/imperative/python/test/unit/test_tracing.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/imperative/src/impl/backward_graph_opt.cpp b/imperative/src/impl/backward_graph_opt.cpp
index 08f37ce1..9e59a8aa 100644
--- a/imperative/src/impl/backward_graph_opt.cpp
+++ b/imperative/src/impl/backward_graph_opt.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/backward_graph_opt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/blob_manager_impl.cpp b/imperative/src/impl/blob_manager_impl.cpp
index af4f46cf..8682c81f 100644
--- a/imperative/src/impl/blob_manager_impl.cpp
+++ b/imperative/src/impl/blob_manager_impl.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/blob_manager_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/blob_manager_impl.h b/imperative/src/impl/blob_manager_impl.h
index 9502c66b..e451ae4e 100644
--- a/imperative/src/impl/blob_manager_impl.h
+++ b/imperative/src/impl/blob_manager_impl.h
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/blob_manager_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/dnn_op_helper.h b/imperative/src/impl/dnn_op_helper.h
index 81222c83..67d967a3 100644
--- a/imperative/src/impl/dnn_op_helper.h
+++ b/imperative/src/impl/dnn_op_helper.h
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/dnn_op_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/function_hook.h b/imperative/src/impl/function_hook.h
index 759b389b..70f3d398 100644
--- a/imperative/src/impl/function_hook.h
+++ b/imperative/src/impl/function_hook.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/function_hook.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/interpreter_impl.cpp b/imperative/src/impl/interpreter_impl.cpp
index 7be91f18..dbd91e12 100644
--- a/imperative/src/impl/interpreter_impl.cpp
+++ b/imperative/src/impl/interpreter_impl.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/interpreter_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/interpreter_impl.h b/imperative/src/impl/interpreter_impl.h
index 979201dd..01160a6f 100644
--- a/imperative/src/impl/interpreter_impl.h
+++ b/imperative/src/impl/interpreter_impl.h
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/interpreter_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/op_def.cpp b/imperative/src/impl/op_def.cpp
index 2ec350d4..db747622 100644
--- a/imperative/src/impl/op_def.cpp
+++ b/imperative/src/impl/op_def.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/op_def.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/op_trait.cpp b/imperative/src/impl/op_trait.cpp
index 6f665bd6..ba84111d 100644
--- a/imperative/src/impl/op_trait.cpp
+++ b/imperative/src/impl/op_trait.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/op_trait.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/op_trait.h b/imperative/src/impl/op_trait.h
index c8b5c162..23a49068 100644
--- a/imperative/src/impl/op_trait.h
+++ b/imperative/src/impl/op_trait.h
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/op_trait.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/opr_utility.cpp b/imperative/src/impl/opr_utility.cpp
index d0a2e64f..4b6914bc 100644
--- a/imperative/src/impl/opr_utility.cpp
+++ b/imperative/src/impl/opr_utility.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/opr_utility.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/autogen.cpp b/imperative/src/impl/ops/autogen.cpp
index 4956915e..833a981b 100644
--- a/imperative/src/impl/ops/autogen.cpp
+++ b/imperative/src/impl/ops/autogen.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/autogen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/backward_graph.cpp b/imperative/src/impl/ops/backward_graph.cpp
index 38ddd769..fb4c2a1a 100644
--- a/imperative/src/impl/ops/backward_graph.cpp
+++ b/imperative/src/impl/ops/backward_graph.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/backward_graph.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/batch_norm.cpp b/imperative/src/impl/ops/batch_norm.cpp
index e1db40ae..6acbe826 100644
--- a/imperative/src/impl/ops/batch_norm.cpp
+++ b/imperative/src/impl/ops/batch_norm.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/batch_norm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/broadcast.cpp b/imperative/src/impl/ops/broadcast.cpp
index 873a9693..4602ecd2 100644
--- a/imperative/src/impl/ops/broadcast.cpp
+++ b/imperative/src/impl/ops/broadcast.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/broadcast.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/collective_comm.cpp b/imperative/src/impl/ops/collective_comm.cpp
index 42f8e9b0..03786b83 100644
--- a/imperative/src/impl/ops/collective_comm.cpp
+++ b/imperative/src/impl/ops/collective_comm.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/collective_comm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/cond_take.cpp b/imperative/src/impl/ops/cond_take.cpp
index 8d923e5f..04083afd 100644
--- a/imperative/src/impl/ops/cond_take.cpp
+++ b/imperative/src/impl/ops/cond_take.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/cond_take.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/elemwise.cpp b/imperative/src/impl/ops/elemwise.cpp
index bdd8b5b5..f1aab9de 100644
--- a/imperative/src/impl/ops/elemwise.cpp
+++ b/imperative/src/impl/ops/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/io_remote.cpp b/imperative/src/impl/ops/io_remote.cpp
index 7a635cce..99f83ea4 100644
--- a/imperative/src/impl/ops/io_remote.cpp
+++ b/imperative/src/impl/ops/io_remote.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/io_remote.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/nms.cpp b/imperative/src/impl/ops/nms.cpp
index ff78f122..5898d315 100644
--- a/imperative/src/impl/ops/nms.cpp
+++ b/imperative/src/impl/ops/nms.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/nms.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/opr_attr.cpp b/imperative/src/impl/ops/opr_attr.cpp
index 2792b7ab..d25132a9 100644
--- a/imperative/src/impl/ops/opr_attr.cpp
+++ b/imperative/src/impl/ops/opr_attr.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/opr_attr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/specializations.cpp b/imperative/src/impl/ops/specializations.cpp
index f56e2df8..e7f9088b 100644
--- a/imperative/src/impl/ops/specializations.cpp
+++ b/imperative/src/impl/ops/specializations.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/autogen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/tensor_manip.cpp b/imperative/src/impl/ops/tensor_manip.cpp
index ae5b4c68..3dd5ed94 100644
--- a/imperative/src/impl/ops/tensor_manip.cpp
+++ b/imperative/src/impl/ops/tensor_manip.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/tensor_manip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/ops/utility.cpp b/imperative/src/impl/ops/utility.cpp
index 5ec2d4ef..d6084e33 100644
--- a/imperative/src/impl/ops/utility.cpp
+++ b/imperative/src/impl/ops/utility.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/ops/utility.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/physical_tensor.cpp b/imperative/src/impl/physical_tensor.cpp
index b4a76626..2fb72010 100644
--- a/imperative/src/impl/physical_tensor.cpp
+++ b/imperative/src/impl/physical_tensor.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/physical_tensor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/profiler.cpp b/imperative/src/impl/profiler.cpp
index 2f1d83ed..ad90582b 100644
--- a/imperative/src/impl/profiler.cpp
+++ b/imperative/src/impl/profiler.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/profiler.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/proxy_graph.cpp b/imperative/src/impl/proxy_graph.cpp
index c48d8f57..d7fb711b 100644
--- a/imperative/src/impl/proxy_graph.cpp
+++ b/imperative/src/impl/proxy_graph.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/proxy_graph.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/proxy_graph.h b/imperative/src/impl/proxy_graph.h
index 8a0e16a6..4fc7dcfc 100644
--- a/imperative/src/impl/proxy_graph.h
+++ b/imperative/src/impl/proxy_graph.h
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/proxy_graph.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/proxy_graph_detail.cpp b/imperative/src/impl/proxy_graph_detail.cpp
index 6603d569..46f5e542 100644
--- a/imperative/src/impl/proxy_graph_detail.cpp
+++ b/imperative/src/impl/proxy_graph_detail.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/impl/proxy_graph_detail.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/impl/tensor_sanity_check.cpp b/imperative/src/impl/tensor_sanity_check.cpp
index 4d998da2..23425124 100644
--- a/imperative/src/impl/tensor_sanity_check.cpp
+++ b/imperative/src/impl/tensor_sanity_check.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/imperative/src/include/megbrain/imperative.h b/imperative/src/include/megbrain/imperative.h
index ca62217d..910dad56 100644
--- a/imperative/src/include/megbrain/imperative.h
+++ b/imperative/src/include/megbrain/imperative.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/backward_graph_opt.h b/imperative/src/include/megbrain/imperative/backward_graph_opt.h
index 457c40f4..7b249441 100644
--- a/imperative/src/include/megbrain/imperative/backward_graph_opt.h
+++ b/imperative/src/include/megbrain/imperative/backward_graph_opt.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/backward_graph_opt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/blob_manager.h b/imperative/src/include/megbrain/imperative/blob_manager.h
index c885d5d2..809a2d67 100644
--- a/imperative/src/include/megbrain/imperative/blob_manager.h
+++ b/imperative/src/include/megbrain/imperative/blob_manager.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/blob_manager.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/interpreter.h b/imperative/src/include/megbrain/imperative/interpreter.h
index cde1ddb3..a350c004 100644
--- a/imperative/src/include/megbrain/imperative/interpreter.h
+++ b/imperative/src/include/megbrain/imperative/interpreter.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/interpreter.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/op_def.h b/imperative/src/include/megbrain/imperative/op_def.h
index 5f250ac4..ce37625d 100644
--- a/imperative/src/include/megbrain/imperative/op_def.h
+++ b/imperative/src/include/megbrain/imperative/op_def.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/op_def.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/opr_utility.h b/imperative/src/include/megbrain/imperative/opr_utility.h
index b619df06..74f6b198 100644
--- a/imperative/src/include/megbrain/imperative/opr_utility.h
+++ b/imperative/src/include/megbrain/imperative/opr_utility.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/opr_utility.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/ops/autogen.h b/imperative/src/include/megbrain/imperative/ops/autogen.h
index a17b495d..96e39a52 100644
--- a/imperative/src/include/megbrain/imperative/ops/autogen.h
+++ b/imperative/src/include/megbrain/imperative/ops/autogen.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/ops/autogen.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/ops/backward_graph.h b/imperative/src/include/megbrain/imperative/ops/backward_graph.h
index 0df4d128..c831e7ed 100644
--- a/imperative/src/include/megbrain/imperative/ops/backward_graph.h
+++ b/imperative/src/include/megbrain/imperative/ops/backward_graph.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/ops/backward_graph.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/ops/opr_attr.h b/imperative/src/include/megbrain/imperative/ops/opr_attr.h
index da011c7e..9ac92a5e 100644
--- a/imperative/src/include/megbrain/imperative/ops/opr_attr.h
+++ b/imperative/src/include/megbrain/imperative/ops/opr_attr.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/ops/opr_attr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/ops/utility.h b/imperative/src/include/megbrain/imperative/ops/utility.h
index b688e986..609995a4 100644
--- a/imperative/src/include/megbrain/imperative/ops/utility.h
+++ b/imperative/src/include/megbrain/imperative/ops/utility.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/ops/utility.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/physical_tensor.h b/imperative/src/include/megbrain/imperative/physical_tensor.h
index f9a090c8..114c6005 100644
--- a/imperative/src/include/megbrain/imperative/physical_tensor.h
+++ b/imperative/src/include/megbrain/imperative/physical_tensor.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/physical_tensor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/profiler.h b/imperative/src/include/megbrain/imperative/profiler.h
index b2452242..6d05003b 100644
--- a/imperative/src/include/megbrain/imperative/profiler.h
+++ b/imperative/src/include/megbrain/imperative/profiler.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/profiler.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/proxy_graph_detail.h b/imperative/src/include/megbrain/imperative/proxy_graph_detail.h
index de6f02f5..2e2544ef 100644
--- a/imperative/src/include/megbrain/imperative/proxy_graph_detail.h
+++ b/imperative/src/include/megbrain/imperative/proxy_graph_detail.h
@@ -2,7 +2,7 @@
  * \file imperative/src/include/megbrain/imperative/proxy_graph_detail.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/include/megbrain/imperative/tensor_sanity_check.h b/imperative/src/include/megbrain/imperative/tensor_sanity_check.h
index b6e849d3..f26a5b34 100644
--- a/imperative/src/include/megbrain/imperative/tensor_sanity_check.h
+++ b/imperative/src/include/megbrain/imperative/tensor_sanity_check.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/imperative/src/test/backward_graph.cpp b/imperative/src/test/backward_graph.cpp
index 8830e429..9e83ed85 100644
--- a/imperative/src/test/backward_graph.cpp
+++ b/imperative/src/test/backward_graph.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/backward_graph.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/collective_comm.cpp b/imperative/src/test/collective_comm.cpp
index 4c28fd65..5dc6ac2c 100644
--- a/imperative/src/test/collective_comm.cpp
+++ b/imperative/src/test/collective_comm.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/collective_comm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/cond_take.cpp b/imperative/src/test/cond_take.cpp
index 9eca1c4d..a778c4ce 100644
--- a/imperative/src/test/cond_take.cpp
+++ b/imperative/src/test/cond_take.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/cond_take.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/helper.cpp b/imperative/src/test/helper.cpp
index 2c2d19e3..685fd059 100644
--- a/imperative/src/test/helper.cpp
+++ b/imperative/src/test/helper.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/helper.h b/imperative/src/test/helper.h
index 441fe0b3..22dbbb9e 100644
--- a/imperative/src/test/helper.h
+++ b/imperative/src/test/helper.h
@@ -2,7 +2,7 @@
  * \file imperative/src/test/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/imperative.cpp b/imperative/src/test/imperative.cpp
index 5a5ccf07..d29ef19e 100644
--- a/imperative/src/test/imperative.cpp
+++ b/imperative/src/test/imperative.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/imperative.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/io_remote.cpp b/imperative/src/test/io_remote.cpp
index 051a1458..1e6054f0 100644
--- a/imperative/src/test/io_remote.cpp
+++ b/imperative/src/test/io_remote.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/io_remote.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/imperative/src/test/opr_utility.cpp b/imperative/src/test/opr_utility.cpp
index a078d419..10c1f84f 100644
--- a/imperative/src/test/opr_utility.cpp
+++ b/imperative/src/test/opr_utility.cpp
@@ -2,7 +2,7 @@
  * \file imperative/src/test/opr_utility.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/c-opr-loaders/mace/Makefile b/sdk/c-opr-loaders/mace/Makefile
index c054cab7..211ae9e1 100644
--- a/sdk/c-opr-loaders/mace/Makefile
+++ b/sdk/c-opr-loaders/mace/Makefile
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/sdk/c-opr-loaders/mace/dump_model.py b/sdk/c-opr-loaders/mace/dump_model.py
index f61ab832..180689fa 100644
--- a/sdk/c-opr-loaders/mace/dump_model.py
+++ b/sdk/c-opr-loaders/mace/dump_model.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/sdk/c-opr-loaders/mace/mace_loader.cpp b/sdk/c-opr-loaders/mace/mace_loader.cpp
index e5b35673..57d3c8eb 100644
--- a/sdk/c-opr-loaders/mace/mace_loader.cpp
+++ b/sdk/c-opr-loaders/mace/mace_loader.cpp
@@ -2,7 +2,7 @@
  * \file sdk/c-opr-loaders/mace/mace_loader.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/dump_with_testcase_mge.py b/sdk/load-and-run/dump_with_testcase_mge.py
index 04c256a0..65c01346 100755
--- a/sdk/load-and-run/dump_with_testcase_mge.py
+++ b/sdk/load-and-run/dump_with_testcase_mge.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/main.cpp b/sdk/load-and-run/main.cpp
index 530a1a95..b2d643f4 100644
--- a/sdk/load-and-run/main.cpp
+++ b/sdk/load-and-run/main.cpp
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/main.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/infile_persistent_cache.cpp b/sdk/load-and-run/src/infile_persistent_cache.cpp
index a80cdc43..81444b7a 100644
--- a/sdk/load-and-run/src/infile_persistent_cache.cpp
+++ b/sdk/load-and-run/src/infile_persistent_cache.cpp
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/infile_persistent_cache.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/infile_persistent_cache.h b/sdk/load-and-run/src/infile_persistent_cache.h
index 3a39f6c5..33fcc2c2 100644
--- a/sdk/load-and-run/src/infile_persistent_cache.h
+++ b/sdk/load-and-run/src/infile_persistent_cache.h
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/infile_persistent_cache.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/json_loader.cpp b/sdk/load-and-run/src/json_loader.cpp
index 44b785e7..13b85dd0 100644
--- a/sdk/load-and-run/src/json_loader.cpp
+++ b/sdk/load-and-run/src/json_loader.cpp
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/json_loader.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/json_loader.h b/sdk/load-and-run/src/json_loader.h
index 692ccc62..6e65a782 100644
--- a/sdk/load-and-run/src/json_loader.h
+++ b/sdk/load-and-run/src/json_loader.h
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/json_loader.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/mgblar.cpp b/sdk/load-and-run/src/mgblar.cpp
index 1ccaa921..fa131a7e 100644
--- a/sdk/load-and-run/src/mgblar.cpp
+++ b/sdk/load-and-run/src/mgblar.cpp
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/mgblar.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/src/mgblar.h b/sdk/load-and-run/src/mgblar.h
index adecd499..2fdff00d 100644
--- a/sdk/load-and-run/src/mgblar.h
+++ b/sdk/load-and-run/src/mgblar.h
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/src/mgblar.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/sdk/load-and-run/test/json_loader_test.cpp b/sdk/load-and-run/test/json_loader_test.cpp
index db16be11..1bac85a9 100644
--- a/sdk/load-and-run/test/json_loader_test.cpp
+++ b/sdk/load-and-run/test/json_loader_test.cpp
@@ -2,7 +2,7 @@
  * \file sdk/load-and-run/test/test_json_loader.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/cambricon/impl/cambricon_runtime_opr.cpp b/src/cambricon/impl/cambricon_runtime_opr.cpp
index cedc7d2c..13b531f7 100644
--- a/src/cambricon/impl/cambricon_runtime_opr.cpp
+++ b/src/cambricon/impl/cambricon_runtime_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/cambricon/impl/cambricon_runtime_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/cambricon/impl/cambricon_runtime_opr.sereg.h b/src/cambricon/impl/cambricon_runtime_opr.sereg.h
index cf209e4c..f38973ff 100644
--- a/src/cambricon/impl/cambricon_runtime_opr.sereg.h
+++ b/src/cambricon/impl/cambricon_runtime_opr.sereg.h
@@ -2,7 +2,7 @@
  * \file src/cambricon/impl/cambricon_runtime_opr.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/cambricon/include/megbrain/cambricon/cambricon_runtime_opr.h b/src/cambricon/include/megbrain/cambricon/cambricon_runtime_opr.h
index ce951221..e3570ebc 100644
--- a/src/cambricon/include/megbrain/cambricon/cambricon_runtime_opr.h
+++ b/src/cambricon/include/megbrain/cambricon/cambricon_runtime_opr.h
@@ -2,7 +2,7 @@
  * \file src/cambricon/include/megbrain/cambricon/cambricon_runtime_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/cambricon/test/cambricon_runtime_opr.cpp b/src/cambricon/test/cambricon_runtime_opr.cpp
index b3beb735..a1de089d 100644
--- a/src/cambricon/test/cambricon_runtime_opr.cpp
+++ b/src/cambricon/test/cambricon_runtime_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/cambricon/test/cambricon_runtime_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/common.cpp b/src/core/impl/common.cpp
index 2d34290e..9ea94cb6 100644
--- a/src/core/impl/common.cpp
+++ b/src/core/impl/common.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/common.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/atlas/comp_node.cpp b/src/core/impl/comp_node/atlas/comp_node.cpp
index f0d5fb1b..ab71e0ad 100644
--- a/src/core/impl/comp_node/atlas/comp_node.cpp
+++ b/src/core/impl/comp_node/atlas/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/atlas/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/atlas/comp_node.h b/src/core/impl/comp_node/atlas/comp_node.h
index 644b1836..1e0b3c6a 100644
--- a/src/core/impl/comp_node/atlas/comp_node.h
+++ b/src/core/impl/comp_node/atlas/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/atlas/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cambricon/comp_node.cpp b/src/core/impl/comp_node/cambricon/comp_node.cpp
index da10e849..c7f9da35 100644
--- a/src/core/impl/comp_node/cambricon/comp_node.cpp
+++ b/src/core/impl/comp_node/cambricon/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cambricon/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cambricon/comp_node.h b/src/core/impl/comp_node/cambricon/comp_node.h
index b4c04495..a810a55a 100644
--- a/src/core/impl/comp_node/cambricon/comp_node.h
+++ b/src/core/impl/comp_node/cambricon/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cambricon/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/comp_node.cpp b/src/core/impl/comp_node/comp_node.cpp
index 907ccda2..c276cac9 100644
--- a/src/core/impl/comp_node/comp_node.cpp
+++ b/src/core/impl/comp_node/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cpu/comp_node.cpp b/src/core/impl/comp_node/cpu/comp_node.cpp
index 903712a2..c639e992 100644
--- a/src/core/impl/comp_node/cpu/comp_node.cpp
+++ b/src/core/impl/comp_node/cpu/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cpu/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cpu/comp_node.h b/src/core/impl/comp_node/cpu/comp_node.h
index 58ea7cca..57b60a0b 100644
--- a/src/core/impl/comp_node/cpu/comp_node.h
+++ b/src/core/impl/comp_node/cpu/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cpu/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cuda/comp_node.cpp b/src/core/impl/comp_node/cuda/comp_node.cpp
index 6fb157f4..dcfe549d 100644
--- a/src/core/impl/comp_node/cuda/comp_node.cpp
+++ b/src/core/impl/comp_node/cuda/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cuda/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/cuda/comp_node.h b/src/core/impl/comp_node/cuda/comp_node.h
index b4fd8444..6fe772fb 100644
--- a/src/core/impl/comp_node/cuda/comp_node.h
+++ b/src/core/impl/comp_node/cuda/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/cuda/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/impl_helper.cpp b/src/core/impl/comp_node/impl_helper.cpp
index cc078fa6..8101c97b 100644
--- a/src/core/impl/comp_node/impl_helper.cpp
+++ b/src/core/impl/comp_node/impl_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/impl_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/impl_helper.h b/src/core/impl/comp_node/impl_helper.h
index e65ea78c..a1d4f1e6 100644
--- a/src/core/impl/comp_node/impl_helper.h
+++ b/src/core/impl/comp_node/impl_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/impl_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/mem_alloc/alloc.cpp b/src/core/impl/comp_node/mem_alloc/alloc.cpp
index f54d0f44..70f30edc 100644
--- a/src/core/impl/comp_node/mem_alloc/alloc.cpp
+++ b/src/core/impl/comp_node/mem_alloc/alloc.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/mem_alloc/alloc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/mem_alloc/impl.cpp b/src/core/impl/comp_node/mem_alloc/impl.cpp
index 2f9f0ba7..27770086 100644
--- a/src/core/impl/comp_node/mem_alloc/impl.cpp
+++ b/src/core/impl/comp_node/mem_alloc/impl.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/mem_alloc/impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/mem_alloc/impl.h b/src/core/impl/comp_node/mem_alloc/impl.h
index bb41d5d1..c3515a44 100644
--- a/src/core/impl/comp_node/mem_alloc/impl.h
+++ b/src/core/impl/comp_node/mem_alloc/impl.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/mem_alloc/impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/rocm/comp_node.cpp b/src/core/impl/comp_node/rocm/comp_node.cpp
index 77fd6ef7..c7300b39 100644
--- a/src/core/impl/comp_node/rocm/comp_node.cpp
+++ b/src/core/impl/comp_node/rocm/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/rocm/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node/rocm/comp_node.h b/src/core/impl/comp_node/rocm/comp_node.h
index 6d2a9524..c5f94142 100644
--- a/src/core/impl/comp_node/rocm/comp_node.h
+++ b/src/core/impl/comp_node/rocm/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node/rocm/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/comp_node_env.cpp b/src/core/impl/comp_node_env.cpp
index 6dbe629e..f58f0f3c 100644
--- a/src/core/impl/comp_node_env.cpp
+++ b/src/core/impl/comp_node_env.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/comp_node_env.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/dtype.cpp b/src/core/impl/dtype.cpp
index 6c8e9c9b..85b8a0e5 100644
--- a/src/core/impl/dtype.cpp
+++ b/src/core/impl/dtype.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/dtype.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/exception.cpp b/src/core/impl/exception.cpp
index 6e2efd32..9ec43b2c 100644
--- a/src/core/impl/exception.cpp
+++ b/src/core/impl/exception.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/exception.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/bases.cpp b/src/core/impl/graph/bases.cpp
index ccb18c3f..71451086 100644
--- a/src/core/impl/graph/bases.cpp
+++ b/src/core/impl/graph/bases.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/bases.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl.cpp b/src/core/impl/graph/cg_impl.cpp
index 2a091f19..288169b7 100644
--- a/src/core/impl/graph/cg_impl.cpp
+++ b/src/core/impl/graph/cg_impl.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl.h b/src/core/impl/graph/cg_impl.h
index e3969e65..9d6634a9 100644
--- a/src/core/impl/graph/cg_impl.h
+++ b/src/core/impl/graph/cg_impl.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl_partial.cpp b/src/core/impl/graph/cg_impl_partial.cpp
index 28b2b578..b48b2b8c 100644
--- a/src/core/impl/graph/cg_impl_partial.cpp
+++ b/src/core/impl/graph/cg_impl_partial.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl_partial.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl_partial.h b/src/core/impl/graph/cg_impl_partial.h
index cb157736..1712e83e 100644
--- a/src/core/impl/graph/cg_impl_partial.h
+++ b/src/core/impl/graph/cg_impl_partial.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl_partial.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl_seq.cpp b/src/core/impl/graph/cg_impl_seq.cpp
index 326eb4c3..540a3f27 100644
--- a/src/core/impl/graph/cg_impl_seq.cpp
+++ b/src/core/impl/graph/cg_impl_seq.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl_seq.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/cg_impl_seq.h b/src/core/impl/graph/cg_impl_seq.h
index 625091bc..a999542b 100644
--- a/src/core/impl/graph/cg_impl_seq.h
+++ b/src/core/impl/graph/cg_impl_seq.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/cg_impl_seq.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/eager_eval.cpp b/src/core/impl/graph/eager_eval.cpp
index 6c13057c..4dae3f88 100644
--- a/src/core/impl/graph/eager_eval.cpp
+++ b/src/core/impl/graph/eager_eval.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/eager_eval.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/eager_eval.h b/src/core/impl/graph/eager_eval.h
index e767eb3a..08019dba 100644
--- a/src/core/impl/graph/eager_eval.h
+++ b/src/core/impl/graph/eager_eval.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/eager_eval.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/event.cpp b/src/core/impl/graph/event.cpp
index 48746026..64d49654 100644
--- a/src/core/impl/graph/event.cpp
+++ b/src/core/impl/graph/event.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/event.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/execution_mask.cpp b/src/core/impl/graph/execution_mask.cpp
index 321b36ee..28db1add 100644
--- a/src/core/impl/graph/execution_mask.cpp
+++ b/src/core/impl/graph/execution_mask.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/execution_mask.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/grad_manager.cpp b/src/core/impl/graph/grad_manager.cpp
index 493fb57c..324ca4e3 100644
--- a/src/core/impl/graph/grad_manager.cpp
+++ b/src/core/impl/graph/grad_manager.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/grad_manager.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/grad_manager.h b/src/core/impl/graph/grad_manager.h
index daec4a80..a92f60ce 100644
--- a/src/core/impl/graph/grad_manager.h
+++ b/src/core/impl/graph/grad_manager.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/grad_manager.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/graph_opt.cpp b/src/core/impl/graph/graph_opt.cpp
index c6e57ed8..dc1ac4fc 100644
--- a/src/core/impl/graph/graph_opt.cpp
+++ b/src/core/impl/graph/graph_opt.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/graph_opt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/graph_opt.h b/src/core/impl/graph/graph_opt.h
index ee1a7fb5..54978dda 100644
--- a/src/core/impl/graph/graph_opt.h
+++ b/src/core/impl/graph/graph_opt.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/graph_opt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/helper.cpp b/src/core/impl/graph/helper.cpp
index fe35b9df..c43a45e8 100644
--- a/src/core/impl/graph/helper.cpp
+++ b/src/core/impl/graph/helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/impl_common.h b/src/core/impl/graph/impl_common.h
index dd6e7c60..c11d6be1 100644
--- a/src/core/impl/graph/impl_common.h
+++ b/src/core/impl/graph/impl_common.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/impl_common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/memory_optimizer.cpp b/src/core/impl/graph/memory_optimizer.cpp
index fc542d7a..a74007e5 100644
--- a/src/core/impl/graph/memory_optimizer.cpp
+++ b/src/core/impl/graph/memory_optimizer.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/memory_optimizer.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/memory_optimizer.h b/src/core/impl/graph/memory_optimizer.h
index d995446f..71ecf949 100644
--- a/src/core/impl/graph/memory_optimizer.h
+++ b/src/core/impl/graph/memory_optimizer.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/memory_optimizer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/normal_exec_env.cpp b/src/core/impl/graph/normal_exec_env.cpp
index 11f770df..6b4c6ca1 100644
--- a/src/core/impl/graph/normal_exec_env.cpp
+++ b/src/core/impl/graph/normal_exec_env.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/normal_exec_env.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/normal_exec_env.h b/src/core/impl/graph/normal_exec_env.h
index e61d8674..8f63b60a 100644
--- a/src/core/impl/graph/normal_exec_env.h
+++ b/src/core/impl/graph/normal_exec_env.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/normal_exec_env.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/operator_node.cpp b/src/core/impl/graph/operator_node.cpp
index c59016a0..55d3d8f4 100644
--- a/src/core/impl/graph/operator_node.cpp
+++ b/src/core/impl/graph/operator_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/operator_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/seq_comp_node_opt_impl.cpp b/src/core/impl/graph/seq_comp_node_opt_impl.cpp
index 3b6251b9..a7830239 100644
--- a/src/core/impl/graph/seq_comp_node_opt_impl.cpp
+++ b/src/core/impl/graph/seq_comp_node_opt_impl.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/seq_comp_node_opt_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/seq_comp_node_opt_impl.h b/src/core/impl/graph/seq_comp_node_opt_impl.h
index 8f81f453..cbf6228c 100644
--- a/src/core/impl/graph/seq_comp_node_opt_impl.h
+++ b/src/core/impl/graph/seq_comp_node_opt_impl.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/seq_comp_node_opt_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/seq_sublinear_memory.cpp b/src/core/impl/graph/seq_sublinear_memory.cpp
index 7906115f..312d47c5 100644
--- a/src/core/impl/graph/seq_sublinear_memory.cpp
+++ b/src/core/impl/graph/seq_sublinear_memory.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/seq_sublinear_memory.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/seq_sublinear_memory.h b/src/core/impl/graph/seq_sublinear_memory.h
index 4335ef60..6b79b2f4 100644
--- a/src/core/impl/graph/seq_sublinear_memory.h
+++ b/src/core/impl/graph/seq_sublinear_memory.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/seq_sublinear_memory.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/static_infer_impl.cpp b/src/core/impl/graph/static_infer_impl.cpp
index 15808a01..908e9318 100644
--- a/src/core/impl/graph/static_infer_impl.cpp
+++ b/src/core/impl/graph/static_infer_impl.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/static_infer_impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/static_infer_impl.h b/src/core/impl/graph/static_infer_impl.h
index e8adc4ae..7594851f 100644
--- a/src/core/impl/graph/static_infer_impl.h
+++ b/src/core/impl/graph/static_infer_impl.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/static_infer_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/memory_swap.cpp b/src/core/impl/graph/swap/memory_swap.cpp
index a42bc8d4..42b6a5f6 100644
--- a/src/core/impl/graph/swap/memory_swap.cpp
+++ b/src/core/impl/graph/swap/memory_swap.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/memory_swap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/memory_swap.h b/src/core/impl/graph/swap/memory_swap.h
index 61baf66f..21c9484d 100644
--- a/src/core/impl/graph/swap/memory_swap.h
+++ b/src/core/impl/graph/swap/memory_swap.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/memory_swap.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/swap_helper.cpp b/src/core/impl/graph/swap/swap_helper.cpp
index 5511fc63..14a1e820 100644
--- a/src/core/impl/graph/swap/swap_helper.cpp
+++ b/src/core/impl/graph/swap/swap_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/swap_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/swap_helper.h b/src/core/impl/graph/swap/swap_helper.h
index 6fe74ca4..aeb6254a 100644
--- a/src/core/impl/graph/swap/swap_helper.h
+++ b/src/core/impl/graph/swap/swap_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/swap_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/swap_opr.cpp b/src/core/impl/graph/swap/swap_opr.cpp
index 60969e43..2aa15132 100644
--- a/src/core/impl/graph/swap/swap_opr.cpp
+++ b/src/core/impl/graph/swap/swap_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/swap_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/swap/swap_opr.h b/src/core/impl/graph/swap/swap_opr.h
index b36173a4..5b28ec61 100644
--- a/src/core/impl/graph/swap/swap_opr.h
+++ b/src/core/impl/graph/swap/swap_opr.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/swap/swap_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/symbol_var.cpp b/src/core/impl/graph/symbol_var.cpp
index 034b1321..8cbc4ee6 100644
--- a/src/core/impl/graph/symbol_var.cpp
+++ b/src/core/impl/graph/symbol_var.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/symbol_var.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/topo_sort.cpp b/src/core/impl/graph/topo_sort.cpp
index 4f5f6c2d..30641520 100644
--- a/src/core/impl/graph/topo_sort.cpp
+++ b/src/core/impl/graph/topo_sort.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/topo_sort.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/topo_sort.h b/src/core/impl/graph/topo_sort.h
index 9eb80c07..2f2ff437 100644
--- a/src/core/impl/graph/topo_sort.h
+++ b/src/core/impl/graph/topo_sort.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/topo_sort.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node.cpp b/src/core/impl/graph/var_node.cpp
index 073fbcec..ac25c133 100644
--- a/src/core/impl/graph/var_node.cpp
+++ b/src/core/impl/graph/var_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr.cpp b/src/core/impl/graph/var_node_mem_mgr.cpp
index 235ef1c1..6b77e68c 100644
--- a/src/core/impl/graph/var_node_mem_mgr.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr.h b/src/core/impl/graph/var_node_mem_mgr.h
index 5eaea857..3f414b38 100644
--- a/src/core/impl/graph/var_node_mem_mgr.h
+++ b/src/core/impl/graph/var_node_mem_mgr.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/defrag.cpp b/src/core/impl/graph/var_node_mem_mgr/defrag.cpp
index a1fe0b11..f9baa378 100644
--- a/src/core/impl/graph/var_node_mem_mgr/defrag.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/defrag.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/defrag.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/defrag.h b/src/core/impl/graph/var_node_mem_mgr/defrag.h
index 2b8aad9d..482cf827 100644
--- a/src/core/impl/graph/var_node_mem_mgr/defrag.h
+++ b/src/core/impl/graph/var_node_mem_mgr/defrag.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/defrag.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.cpp b/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.cpp
index acf245c2..348df67d 100644
--- a/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.h b/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.h
index 8ef7613c..e3aba6de 100644
--- a/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.h
+++ b/src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/seq_mem_opt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc.h
index 8c98d0f4..aae006a0 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.cpp b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.cpp
index 374e0da7..b2d9bece 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.h
index 54b1b0b0..4b32af95 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.cpp b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.cpp
index aa5ad448..15e23af0 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.h
index fa5e7bc9..82de4a61 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/best_fit_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.cpp b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.cpp
index 2ddc2bcd..2834aa35 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.h
index b25ecfbb..f4b5efe1 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.cpp b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.cpp
index 1b697986..423a4c35 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.h
index 08bf6fe5..b388acd4 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/interval_move.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.cpp b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.cpp
index 78a68e0d..05887322 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.cpp
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.h b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.h
index b9408fab..0ff2bde7 100644
--- a/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.h
+++ b/src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.h
@@ -2,7 +2,7 @@
  * \file src/core/impl/graph/var_node_mem_mgr/static_mem_alloc/pushdown.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/system.cpp b/src/core/impl/system.cpp
index d970e9cf..a9e695d8 100644
--- a/src/core/impl/system.cpp
+++ b/src/core/impl/system.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/system.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/tensor.cpp b/src/core/impl/tensor.cpp
index b2d1b148..7dcb2311 100644
--- a/src/core/impl/tensor.cpp
+++ b/src/core/impl/tensor.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/tensor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/async_worker.cpp b/src/core/impl/utils/async_worker.cpp
index 6e5fa61c..8d0a5a57 100644
--- a/src/core/impl/utils/async_worker.cpp
+++ b/src/core/impl/utils/async_worker.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/async_worker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/comp_node_sync_manager.cpp b/src/core/impl/utils/comp_node_sync_manager.cpp
index 912e10b0..458bcfa9 100644
--- a/src/core/impl/utils/comp_node_sync_manager.cpp
+++ b/src/core/impl/utils/comp_node_sync_manager.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/comp_node_sync_manager.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/cuda_helper.cpp b/src/core/impl/utils/cuda_helper.cpp
index bab7b057..c0f2fcd6 100644
--- a/src/core/impl/utils/cuda_helper.cpp
+++ b/src/core/impl/utils/cuda_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/cuda_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/debug.cpp b/src/core/impl/utils/debug.cpp
index ed0aad4b..088dca35 100644
--- a/src/core/impl/utils/debug.cpp
+++ b/src/core/impl/utils/debug.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/debug.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/event.cpp b/src/core/impl/utils/event.cpp
index 526e578e..71611814 100644
--- a/src/core/impl/utils/event.cpp
+++ b/src/core/impl/utils/event.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/event.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/hash.cpp b/src/core/impl/utils/hash.cpp
index b9f2fc39..a0f3e852 100644
--- a/src/core/impl/utils/hash.cpp
+++ b/src/core/impl/utils/hash.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/hash.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/hashable.cpp b/src/core/impl/utils/hashable.cpp
index 4d0bdac5..48330870 100644
--- a/src/core/impl/utils/hashable.cpp
+++ b/src/core/impl/utils/hashable.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/hashable.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/json.cpp b/src/core/impl/utils/json.cpp
index 4d2993cd..c2a40281 100644
--- a/src/core/impl/utils/json.cpp
+++ b/src/core/impl/utils/json.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/json.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/mempool.cpp b/src/core/impl/utils/mempool.cpp
index 755c6d8f..1cfb0f15 100644
--- a/src/core/impl/utils/mempool.cpp
+++ b/src/core/impl/utils/mempool.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/mempool.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/metahelper.cpp b/src/core/impl/utils/metahelper.cpp
index dfaa6a49..fa44bed3 100644
--- a/src/core/impl/utils/metahelper.cpp
+++ b/src/core/impl/utils/metahelper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/metahelper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/persistent_cache.cpp b/src/core/impl/utils/persistent_cache.cpp
index 98e3dc2a..8dbbd3c1 100644
--- a/src/core/impl/utils/persistent_cache.cpp
+++ b/src/core/impl/utils/persistent_cache.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/persistent_cache.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/thread.cpp b/src/core/impl/utils/thread.cpp
index d2228880..d699b0a3 100644
--- a/src/core/impl/utils/thread.cpp
+++ b/src/core/impl/utils/thread.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/thread.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/thread_pool.cpp b/src/core/impl/utils/thread_pool.cpp
index ec57b9e5..fab09dd9 100644
--- a/src/core/impl/utils/thread_pool.cpp
+++ b/src/core/impl/utils/thread_pool.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/thread_pool.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/timer.cpp b/src/core/impl/utils/timer.cpp
index 3d5aebab..507618c7 100644
--- a/src/core/impl/utils/timer.cpp
+++ b/src/core/impl/utils/timer.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/utils/timer.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/xxhash/xxhash.cpp b/src/core/impl/utils/xxhash/xxhash.cpp
index e14a9c5f..6afeced8 100644
--- a/src/core/impl/utils/xxhash/xxhash.cpp
+++ b/src/core/impl/utils/xxhash/xxhash.cpp
@@ -36,7 +36,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/utils/xxhash/xxhash.h b/src/core/impl/utils/xxhash/xxhash.h
index 04b3e941..2dab8c14 100644
--- a/src/core/impl/utils/xxhash/xxhash.h
+++ b/src/core/impl/utils/xxhash/xxhash.h
@@ -36,7 +36,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/impl/version.cpp b/src/core/impl/version.cpp
index da336bb1..7f168603 100644
--- a/src/core/impl/version.cpp
+++ b/src/core/impl/version.cpp
@@ -2,7 +2,7 @@
  * \file src/core/impl/version.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/common.h b/src/core/include/megbrain/common.h
index 172a83a5..c90b461f 100644
--- a/src/core/include/megbrain/common.h
+++ b/src/core/include/megbrain/common.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/comp_node.h b/src/core/include/megbrain/comp_node.h
index 2dd50972..464235f8 100644
--- a/src/core/include/megbrain/comp_node.h
+++ b/src/core/include/megbrain/comp_node.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/comp_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/comp_node/alloc.h b/src/core/include/megbrain/comp_node/alloc.h
index 2d15108d..33f9539d 100644
--- a/src/core/include/megbrain/comp_node/alloc.h
+++ b/src/core/include/megbrain/comp_node/alloc.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/comp_node/alloc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/comp_node_env.h b/src/core/include/megbrain/comp_node_env.h
index 1173c05b..960e1b72 100644
--- a/src/core/include/megbrain/comp_node_env.h
+++ b/src/core/include/megbrain/comp_node_env.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/comp_node_env.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/dtype.h b/src/core/include/megbrain/dtype.h
index 6e98c36d..4df0ba6d 100644
--- a/src/core/include/megbrain/dtype.h
+++ b/src/core/include/megbrain/dtype.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/dtype.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/exception.h b/src/core/include/megbrain/exception.h
index a4215893..d2d1eda0 100644
--- a/src/core/include/megbrain/exception.h
+++ b/src/core/include/megbrain/exception.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/exception.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph.h b/src/core/include/megbrain/graph.h
index b6e68fa6..a7d5080a 100644
--- a/src/core/include/megbrain/graph.h
+++ b/src/core/include/megbrain/graph.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/bases.h b/src/core/include/megbrain/graph/bases.h
index 7fc505a3..9dcbf2c7 100644
--- a/src/core/include/megbrain/graph/bases.h
+++ b/src/core/include/megbrain/graph/bases.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/bases.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/cg.h b/src/core/include/megbrain/graph/cg.h
index fefe46af..428e8ceb 100644
--- a/src/core/include/megbrain/graph/cg.h
+++ b/src/core/include/megbrain/graph/cg.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/cg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/event.h b/src/core/include/megbrain/graph/event.h
index 1be05b78..5c279116 100644
--- a/src/core/include/megbrain/graph/event.h
+++ b/src/core/include/megbrain/graph/event.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/event.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/exc_extra_info.h b/src/core/include/megbrain/graph/exc_extra_info.h
index 0bfd9a36..801b1a00 100644
--- a/src/core/include/megbrain/graph/exc_extra_info.h
+++ b/src/core/include/megbrain/graph/exc_extra_info.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/exc_extra_info.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/execution_mask.h b/src/core/include/megbrain/graph/execution_mask.h
index b9a9df9f..b5784878 100644
--- a/src/core/include/megbrain/graph/execution_mask.h
+++ b/src/core/include/megbrain/graph/execution_mask.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/execution_mask.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/extern_copr_api.h b/src/core/include/megbrain/graph/extern_copr_api.h
index c48a98a9..c380e63c 100644
--- a/src/core/include/megbrain/graph/extern_copr_api.h
+++ b/src/core/include/megbrain/graph/extern_copr_api.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/extern_copr_api.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/grad_impl.h b/src/core/include/megbrain/graph/grad_impl.h
index ba4800a9..884c9a1a 100644
--- a/src/core/include/megbrain/graph/grad_impl.h
+++ b/src/core/include/megbrain/graph/grad_impl.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/grad_impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/helper.h b/src/core/include/megbrain/graph/helper.h
index 0f7f8ad3..a3d820b3 100644
--- a/src/core/include/megbrain/graph/helper.h
+++ b/src/core/include/megbrain/graph/helper.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/operator_node.h b/src/core/include/megbrain/graph/operator_node.h
index 64a593a1..a8ea0980 100644
--- a/src/core/include/megbrain/graph/operator_node.h
+++ b/src/core/include/megbrain/graph/operator_node.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/operator_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/seq_comp_node_opt.h b/src/core/include/megbrain/graph/seq_comp_node_opt.h
index 27fc7d8f..a4e2960d 100644
--- a/src/core/include/megbrain/graph/seq_comp_node_opt.h
+++ b/src/core/include/megbrain/graph/seq_comp_node_opt.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/seq_comp_node_opt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/static_infer.h b/src/core/include/megbrain/graph/static_infer.h
index 3a53ff69..cb625d97 100644
--- a/src/core/include/megbrain/graph/static_infer.h
+++ b/src/core/include/megbrain/graph/static_infer.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/static_infer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/symbol_var.h b/src/core/include/megbrain/graph/symbol_var.h
index a89598dc..62312c15 100644
--- a/src/core/include/megbrain/graph/symbol_var.h
+++ b/src/core/include/megbrain/graph/symbol_var.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/symbol_var.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/graph/var_node.h b/src/core/include/megbrain/graph/var_node.h
index 4f329d71..ef7c58ec 100644
--- a/src/core/include/megbrain/graph/var_node.h
+++ b/src/core/include/megbrain/graph/var_node.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/graph/var_node.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/ir/base.td b/src/core/include/megbrain/ir/base.td
index 82e638d5..0d8d3988 100644
--- a/src/core/include/megbrain/ir/base.td
+++ b/src/core/include/megbrain/ir/base.td
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/ir/base.td
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/ir/ops.td b/src/core/include/megbrain/ir/ops.td
index e065d492..6e495e74 100644
--- a/src/core/include/megbrain/ir/ops.td
+++ b/src/core/include/megbrain/ir/ops.td
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/ir/ops.td
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/system.h b/src/core/include/megbrain/system.h
index 3bb65649..66b83690 100644
--- a/src/core/include/megbrain/system.h
+++ b/src/core/include/megbrain/system.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/system.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/tensor.h b/src/core/include/megbrain/tensor.h
index 3a613382..fe73be17 100644
--- a/src/core/include/megbrain/tensor.h
+++ b/src/core/include/megbrain/tensor.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/tensor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/arith_helper.h b/src/core/include/megbrain/utils/arith_helper.h
index 734dac12..bac48cc1 100644
--- a/src/core/include/megbrain/utils/arith_helper.h
+++ b/src/core/include/megbrain/utils/arith_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/arith_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/async_worker.h b/src/core/include/megbrain/utils/async_worker.h
index cdd3ebf8..dd9c8935 100644
--- a/src/core/include/megbrain/utils/async_worker.h
+++ b/src/core/include/megbrain/utils/async_worker.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/async_worker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/async_worker_impl_0.h b/src/core/include/megbrain/utils/async_worker_impl_0.h
index a3a87f06..2801a188 100644
--- a/src/core/include/megbrain/utils/async_worker_impl_0.h
+++ b/src/core/include/megbrain/utils/async_worker_impl_0.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/async_worker_impl_0.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/async_worker_impl_1.h b/src/core/include/megbrain/utils/async_worker_impl_1.h
index 205f2e98..f205c3dc 100644
--- a/src/core/include/megbrain/utils/async_worker_impl_1.h
+++ b/src/core/include/megbrain/utils/async_worker_impl_1.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/async_worker_impl_1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/big_key_hashmap.h b/src/core/include/megbrain/utils/big_key_hashmap.h
index 9cf378cb..542062da 100644
--- a/src/core/include/megbrain/utils/big_key_hashmap.h
+++ b/src/core/include/megbrain/utils/big_key_hashmap.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/big_key_hashmap.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/comp_node_sync_manager.h b/src/core/include/megbrain/utils/comp_node_sync_manager.h
index 8386aaff..74b0839e 100644
--- a/src/core/include/megbrain/utils/comp_node_sync_manager.h
+++ b/src/core/include/megbrain/utils/comp_node_sync_manager.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/comp_node_sync_manager.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/cuda_helper.h b/src/core/include/megbrain/utils/cuda_helper.h
index 8b8c66f4..ec7823b4 100644
--- a/src/core/include/megbrain/utils/cuda_helper.h
+++ b/src/core/include/megbrain/utils/cuda_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/cuda_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/debug.h b/src/core/include/megbrain/utils/debug.h
index 6dedbdf3..31bdd77f 100644
--- a/src/core/include/megbrain/utils/debug.h
+++ b/src/core/include/megbrain/utils/debug.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/debug.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/enum_class_bit.h b/src/core/include/megbrain/utils/enum_class_bit.h
index 628340af..35e50ccf 100644
--- a/src/core/include/megbrain/utils/enum_class_bit.h
+++ b/src/core/include/megbrain/utils/enum_class_bit.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/enum_class_bit.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/event.h b/src/core/include/megbrain/utils/event.h
index 24084bcd..a6ce7c19 100644
--- a/src/core/include/megbrain/utils/event.h
+++ b/src/core/include/megbrain/utils/event.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/event.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/hash.h b/src/core/include/megbrain/utils/hash.h
index fefeec9e..2737abf8 100644
--- a/src/core/include/megbrain/utils/hash.h
+++ b/src/core/include/megbrain/utils/hash.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/hash.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/hash_ct.h b/src/core/include/megbrain/utils/hash_ct.h
index c9793a00..7e605264 100644
--- a/src/core/include/megbrain/utils/hash_ct.h
+++ b/src/core/include/megbrain/utils/hash_ct.h
@@ -26,7 +26,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/hashable.h b/src/core/include/megbrain/utils/hashable.h
index 0fbb0bfa..f53e0488 100644
--- a/src/core/include/megbrain/utils/hashable.h
+++ b/src/core/include/megbrain/utils/hashable.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/hashable.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/json.h b/src/core/include/megbrain/utils/json.h
index 31db409f..5edde8b6 100644
--- a/src/core/include/megbrain/utils/json.h
+++ b/src/core/include/megbrain/utils/json.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/json.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/mempool.h b/src/core/include/megbrain/utils/mempool.h
index 0b8b3b3d..76a28410 100644
--- a/src/core/include/megbrain/utils/mempool.h
+++ b/src/core/include/megbrain/utils/mempool.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/mempool.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/metahelper.h b/src/core/include/megbrain/utils/metahelper.h
index bb38db7c..b9909b14 100644
--- a/src/core/include/megbrain/utils/metahelper.h
+++ b/src/core/include/megbrain/utils/metahelper.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/metahelper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/metahelper_basic.h b/src/core/include/megbrain/utils/metahelper_basic.h
index 144a4978..ac6e9df2 100644
--- a/src/core/include/megbrain/utils/metahelper_basic.h
+++ b/src/core/include/megbrain/utils/metahelper_basic.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/metahelper_basic.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/obfuscator_ct.h b/src/core/include/megbrain/utils/obfuscator_ct.h
index 572fbc08..7e55d5d1 100644
--- a/src/core/include/megbrain/utils/obfuscator_ct.h
+++ b/src/core/include/megbrain/utils/obfuscator_ct.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/obfuscator_ct.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/persistent_cache.h b/src/core/include/megbrain/utils/persistent_cache.h
index 5ad1f80b..8c2777a9 100644
--- a/src/core/include/megbrain/utils/persistent_cache.h
+++ b/src/core/include/megbrain/utils/persistent_cache.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/persistent_cache.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/shared_set.h b/src/core/include/megbrain/utils/shared_set.h
index 89e06a09..6d701076 100644
--- a/src/core/include/megbrain/utils/shared_set.h
+++ b/src/core/include/megbrain/utils/shared_set.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/shared_set.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/small_vector.h b/src/core/include/megbrain/utils/small_vector.h
index a4cd4bd8..33a87b02 100644
--- a/src/core/include/megbrain/utils/small_vector.h
+++ b/src/core/include/megbrain/utils/small_vector.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/small_vector.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thin/function.h b/src/core/include/megbrain/utils/thin/function.h
index 261a03b0..b94a0225 100644
--- a/src/core/include/megbrain/utils/thin/function.h
+++ b/src/core/include/megbrain/utils/thin/function.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thin/function.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thin/hash_table.h b/src/core/include/megbrain/utils/thin/hash_table.h
index b6c9427c..291c151b 100644
--- a/src/core/include/megbrain/utils/thin/hash_table.h
+++ b/src/core/include/megbrain/utils/thin/hash_table.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thin/hash_table.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thin/nullable_hash_map.h b/src/core/include/megbrain/utils/thin/nullable_hash_map.h
index 83f93fbd..3851c014 100644
--- a/src/core/include/megbrain/utils/thin/nullable_hash_map.h
+++ b/src/core/include/megbrain/utils/thin/nullable_hash_map.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thin/nullable_hash_map.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thread.h b/src/core/include/megbrain/utils/thread.h
index 2772bb18..f94fd70b 100644
--- a/src/core/include/megbrain/utils/thread.h
+++ b/src/core/include/megbrain/utils/thread.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thread.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thread_impl_0.h b/src/core/include/megbrain/utils/thread_impl_0.h
index 44b169b1..97393464 100644
--- a/src/core/include/megbrain/utils/thread_impl_0.h
+++ b/src/core/include/megbrain/utils/thread_impl_0.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thread_impl_0.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thread_impl_1.h b/src/core/include/megbrain/utils/thread_impl_1.h
index 3a8e5f84..d5d540ab 100644
--- a/src/core/include/megbrain/utils/thread_impl_1.h
+++ b/src/core/include/megbrain/utils/thread_impl_1.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thread_impl_1.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thread_impl_spinlock.h b/src/core/include/megbrain/utils/thread_impl_spinlock.h
index b9f1efc4..f3cab560 100644
--- a/src/core/include/megbrain/utils/thread_impl_spinlock.h
+++ b/src/core/include/megbrain/utils/thread_impl_spinlock.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thread_impl_spinlock.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/thread_pool.h b/src/core/include/megbrain/utils/thread_pool.h
index a6b01d4f..6e6f8ad0 100644
--- a/src/core/include/megbrain/utils/thread_pool.h
+++ b/src/core/include/megbrain/utils/thread_pool.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/thread_pool.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/utils/timer.h b/src/core/include/megbrain/utils/timer.h
index 5634d388..1fd36b62 100644
--- a/src/core/include/megbrain/utils/timer.h
+++ b/src/core/include/megbrain/utils/timer.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/utils/timer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/version.h b/src/core/include/megbrain/version.h
index c002e292..c8f84c64 100644
--- a/src/core/include/megbrain/version.h
+++ b/src/core/include/megbrain/version.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/version.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/include/megbrain/version_symbol.h b/src/core/include/megbrain/version_symbol.h
index 4ac608ca..d4806ff6 100644
--- a/src/core/include/megbrain/version_symbol.h
+++ b/src/core/include/megbrain/version_symbol.h
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain/version_symbol.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/comp_node.cpp b/src/core/test/comp_node.cpp
index 41a0751c..1ad42db7 100644
--- a/src/core/test/comp_node.cpp
+++ b/src/core/test/comp_node.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/comp_node.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/comp_node_helper.cpp b/src/core/test/comp_node_helper.cpp
index 73df2d02..997dfdd3 100644
--- a/src/core/test/comp_node_helper.cpp
+++ b/src/core/test/comp_node_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/comp_node_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/comp_node_helper.h b/src/core/test/comp_node_helper.h
index ad5d8a31..60222b25 100644
--- a/src/core/test/comp_node_helper.h
+++ b/src/core/test/comp_node_helper.h
@@ -2,7 +2,7 @@
  * \file src/core/test/comp_node_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/dtype.cpp b/src/core/test/dtype.cpp
index 4721b3b8..d9916a30 100644
--- a/src/core/test/dtype.cpp
+++ b/src/core/test/dtype.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/dtype.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/add_update.cpp b/src/core/test/graph/add_update.cpp
index b73d0798..915fd4d0 100644
--- a/src/core/test/graph/add_update.cpp
+++ b/src/core/test/graph/add_update.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/add_update.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/defrag.cpp b/src/core/test/graph/defrag.cpp
index cd025c6a..ca233be4 100644
--- a/src/core/test/graph/defrag.cpp
+++ b/src/core/test/graph/defrag.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/defrag.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/eager_eval.cpp b/src/core/test/graph/eager_eval.cpp
index e3547d64..2bcfcf1e 100644
--- a/src/core/test/graph/eager_eval.cpp
+++ b/src/core/test/graph/eager_eval.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/eager_eval.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/mem_fwd.cpp b/src/core/test/graph/mem_fwd.cpp
index a64a9b7e..4e40dccc 100644
--- a/src/core/test/graph/mem_fwd.cpp
+++ b/src/core/test/graph/mem_fwd.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/mem_fwd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/misc.cpp b/src/core/test/graph/misc.cpp
index a7895243..4c75e0cb 100644
--- a/src/core/test/graph/misc.cpp
+++ b/src/core/test/graph/misc.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/multi_thread.cpp b/src/core/test/graph/multi_thread.cpp
index 1b9af8b0..dc633aae 100644
--- a/src/core/test/graph/multi_thread.cpp
+++ b/src/core/test/graph/multi_thread.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/multi_thread.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/graph/partial_execution.cpp b/src/core/test/graph/partial_execution.cpp
index 85ed0831..6b2b8c53 100644
--- a/src/core/test/graph/partial_execution.cpp
+++ b/src/core/test/graph/partial_execution.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/graph/partial_execution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/mem_alloc.cpp b/src/core/test/mem_alloc.cpp
index cc379cf0..eea86586 100644
--- a/src/core/test/mem_alloc.cpp
+++ b/src/core/test/mem_alloc.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/mem_alloc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/mem_reuse.cpp b/src/core/test/mem_reuse.cpp
index 5740eada..20f7d5ed 100644
--- a/src/core/test/mem_reuse.cpp
+++ b/src/core/test/mem_reuse.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/mem_reuse.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/memory_swap.cpp b/src/core/test/memory_swap.cpp
index 43069f3d..37072278 100644
--- a/src/core/test/memory_swap.cpp
+++ b/src/core/test/memory_swap.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/memory_swap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/static_infer.cpp b/src/core/test/static_infer.cpp
index 144d98fd..77650690 100644
--- a/src/core/test/static_infer.cpp
+++ b/src/core/test/static_infer.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/static_infer.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/static_mem_alloc.cpp b/src/core/test/static_mem_alloc.cpp
index 1224207a..3679474a 100644
--- a/src/core/test/static_mem_alloc.cpp
+++ b/src/core/test/static_mem_alloc.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/static_mem_alloc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/sublinear_memory.cpp b/src/core/test/sublinear_memory.cpp
index 6e42f12e..83f26f58 100644
--- a/src/core/test/sublinear_memory.cpp
+++ b/src/core/test/sublinear_memory.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/sublinear_memory.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/system.cpp b/src/core/test/system.cpp
index c2490656..b94af153 100644
--- a/src/core/test/system.cpp
+++ b/src/core/test/system.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/system.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/tensor.cpp b/src/core/test/tensor.cpp
index 82d3bbe6..23736404 100644
--- a/src/core/test/tensor.cpp
+++ b/src/core/test/tensor.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/tensor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/train.cpp b/src/core/test/train.cpp
index 70225c13..51b46e86 100644
--- a/src/core/test/train.cpp
+++ b/src/core/test/train.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/train.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/async_worker.cpp b/src/core/test/utils/async_worker.cpp
index 746e6797..d1aea867 100644
--- a/src/core/test/utils/async_worker.cpp
+++ b/src/core/test/utils/async_worker.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/async_worker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/big_key_hashmap.cpp b/src/core/test/utils/big_key_hashmap.cpp
index 00e2a346..ec461b6b 100644
--- a/src/core/test/utils/big_key_hashmap.cpp
+++ b/src/core/test/utils/big_key_hashmap.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/big_key_hashmap.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/cuda_helper.cpp b/src/core/test/utils/cuda_helper.cpp
index 90361056..abae5cac 100644
--- a/src/core/test/utils/cuda_helper.cpp
+++ b/src/core/test/utils/cuda_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/cuda_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/event.cpp b/src/core/test/utils/event.cpp
index 07718274..97fc759d 100644
--- a/src/core/test/utils/event.cpp
+++ b/src/core/test/utils/event.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/event.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/metahelper.cpp b/src/core/test/utils/metahelper.cpp
index 0d5d43e4..3340963d 100644
--- a/src/core/test/utils/metahelper.cpp
+++ b/src/core/test/utils/metahelper.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/metahelper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/obfuscator_ct.cpp b/src/core/test/utils/obfuscator_ct.cpp
index a043d1b0..b2106cf3 100644
--- a/src/core/test/utils/obfuscator_ct.cpp
+++ b/src/core/test/utils/obfuscator_ct.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/obfuscator_ct.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/thin.cpp b/src/core/test/utils/thin.cpp
index 9627e336..591bf6ea 100644
--- a/src/core/test/utils/thin.cpp
+++ b/src/core/test/utils/thin.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/thin.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/thread.cpp b/src/core/test/utils/thread.cpp
index a3846f17..fe2df92e 100644
--- a/src/core/test/utils/thread.cpp
+++ b/src/core/test/utils/thread.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/thread.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/core/test/utils/thread_pool.cpp b/src/core/test/utils/thread_pool.cpp
index 074e8749..3202e4c8 100644
--- a/src/core/test/utils/thread_pool.cpp
+++ b/src/core/test/utils/thread_pool.cpp
@@ -2,7 +2,7 @@
  * \file src/core/test/utils/thread_pool.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/basic_arith/chain.cpp b/src/gopt/impl/basic_arith/chain.cpp
index bad9547b..125ce652 100644
--- a/src/gopt/impl/basic_arith/chain.cpp
+++ b/src/gopt/impl/basic_arith/chain.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/basic_arith/chain.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/basic_arith/inplace.cpp b/src/gopt/impl/basic_arith/inplace.cpp
index 5d72d23d..a8dc1d6b 100644
--- a/src/gopt/impl/basic_arith/inplace.cpp
+++ b/src/gopt/impl/basic_arith/inplace.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/basic_arith/inplace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/basic_arith/trans.cpp b/src/gopt/impl/basic_arith/trans.cpp
index 6a52e41e..0a3fd657 100644
--- a/src/gopt/impl/basic_arith/trans.cpp
+++ b/src/gopt/impl/basic_arith/trans.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/basic_arith/trans.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/framework.cpp b/src/gopt/impl/framework.cpp
index 52d029b2..41654169 100644
--- a/src/gopt/impl/framework.cpp
+++ b/src/gopt/impl/framework.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/framework.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/fuse_nchw4_int8_preprocess.cpp b/src/gopt/impl/fuse_nchw4_int8_preprocess.cpp
index 7829c29a..9e4ff764 100644
--- a/src/gopt/impl/fuse_nchw4_int8_preprocess.cpp
+++ b/src/gopt/impl/fuse_nchw4_int8_preprocess.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/fuse_nchw4_int8_preprocess.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/gtrans.cpp b/src/gopt/impl/gtrans.cpp
index ac1c7db3..bb1c9098 100644
--- a/src/gopt/impl/gtrans.cpp
+++ b/src/gopt/impl/gtrans.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/gtrans.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/inference.cpp b/src/gopt/impl/inference.cpp
index e8c3c988..2e4ddcf8 100644
--- a/src/gopt/impl/inference.cpp
+++ b/src/gopt/impl/inference.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/inference.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/misc.cpp b/src/gopt/impl/misc.cpp
index 8c38228e..c84b5c45 100644
--- a/src/gopt/impl/misc.cpp
+++ b/src/gopt/impl/misc.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/impl/tensor_reformat.cpp b/src/gopt/impl/tensor_reformat.cpp
index 9a8cd451..95ced749 100644
--- a/src/gopt/impl/tensor_reformat.cpp
+++ b/src/gopt/impl/tensor_reformat.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/impl/tensor_reformat.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/include/megbrain/gopt/basic_arith.h b/src/gopt/include/megbrain/gopt/basic_arith.h
index 056a42fd..fcaa3211 100644
--- a/src/gopt/include/megbrain/gopt/basic_arith.h
+++ b/src/gopt/include/megbrain/gopt/basic_arith.h
@@ -2,7 +2,7 @@
  * \file src/gopt/include/megbrain/gopt/basic_arith.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/include/megbrain/gopt/framework.h b/src/gopt/include/megbrain/gopt/framework.h
index 091a2fe9..d8270e68 100644
--- a/src/gopt/include/megbrain/gopt/framework.h
+++ b/src/gopt/include/megbrain/gopt/framework.h
@@ -2,7 +2,7 @@
  * \file src/gopt/include/megbrain/gopt/framework.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/include/megbrain/gopt/gtrans.h b/src/gopt/include/megbrain/gopt/gtrans.h
index 4bfc6a11..563721a3 100644
--- a/src/gopt/include/megbrain/gopt/gtrans.h
+++ b/src/gopt/include/megbrain/gopt/gtrans.h
@@ -2,7 +2,7 @@
  * \file src/gopt/include/megbrain/gopt/gtrans.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/include/megbrain/gopt/inference.h b/src/gopt/include/megbrain/gopt/inference.h
index 0ad3617b..aca7ad7b 100644
--- a/src/gopt/include/megbrain/gopt/inference.h
+++ b/src/gopt/include/megbrain/gopt/inference.h
@@ -2,7 +2,7 @@
  * \file src/gopt/include/megbrain/gopt/inference.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/include/megbrain/gopt/misc.h b/src/gopt/include/megbrain/gopt/misc.h
index f6fc87ad..4f7f0572 100644
--- a/src/gopt/include/megbrain/gopt/misc.h
+++ b/src/gopt/include/megbrain/gopt/misc.h
@@ -2,7 +2,7 @@
  * \file src/gopt/include/megbrain/gopt/misc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/basic_arith.cpp b/src/gopt/test/basic_arith.cpp
index 7f216066..1769855f 100644
--- a/src/gopt/test/basic_arith.cpp
+++ b/src/gopt/test/basic_arith.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/test/basic_arith.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/gtrans.cpp b/src/gopt/test/gtrans.cpp
index 77cfdaed..fe5416f4 100644
--- a/src/gopt/test/gtrans.cpp
+++ b/src/gopt/test/gtrans.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/test/gtrans.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/helper.cpp b/src/gopt/test/helper.cpp
index b8fa138d..17f89710 100644
--- a/src/gopt/test/helper.cpp
+++ b/src/gopt/test/helper.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/test/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/helper.h b/src/gopt/test/helper.h
index 6ebd92dc..fc036d7a 100644
--- a/src/gopt/test/helper.h
+++ b/src/gopt/test/helper.h
@@ -2,7 +2,7 @@
  * \file src/gopt/test/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/inference.cpp b/src/gopt/test/inference.cpp
index 9f5fd29d..f6e0f540 100644
--- a/src/gopt/test/inference.cpp
+++ b/src/gopt/test/inference.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/test/inference.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/gopt/test/misc.cpp b/src/gopt/test/misc.cpp
index 8f1688bc..ac38e938 100644
--- a/src/gopt/test/misc.cpp
+++ b/src/gopt/test/misc.cpp
@@ -2,7 +2,7 @@
  * \file src/gopt/test/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/ast_c.cpp b/src/jit/impl/ast_c.cpp
index 95143db3..d70d0b33 100644
--- a/src/jit/impl/ast_c.cpp
+++ b/src/jit/impl/ast_c.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/ast_c.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/compiler.cpp b/src/jit/impl/compiler.cpp
index 47094afc..0b87242d 100644
--- a/src/jit/impl/compiler.cpp
+++ b/src/jit/impl/compiler.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/compiler.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/executor_opr.cpp b/src/jit/impl/executor_opr.cpp
index b3d975d0..c207aaad 100644
--- a/src/jit/impl/executor_opr.cpp
+++ b/src/jit/impl/executor_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/executor_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/fusion_pass.cpp b/src/jit/impl/fusion_pass.cpp
index 6355a9be..0f6712f5 100644
--- a/src/jit/impl/fusion_pass.cpp
+++ b/src/jit/impl/fusion_pass.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/fusion_pass.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/ast_hl.cpp b/src/jit/impl/halide/ast_hl.cpp
index f67d2210..dbe0298d 100644
--- a/src/jit/impl/halide/ast_hl.cpp
+++ b/src/jit/impl/halide/ast_hl.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/ast_hl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/ast_hl.h b/src/jit/impl/halide/ast_hl.h
index 17eb43d9..c9e9c4e9 100644
--- a/src/jit/impl/halide/ast_hl.h
+++ b/src/jit/impl/halide/ast_hl.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/ast_hl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/compiler_cuda.cpp b/src/jit/impl/halide/compiler_cuda.cpp
index 3c109e2f..b31462b6 100644
--- a/src/jit/impl/halide/compiler_cuda.cpp
+++ b/src/jit/impl/halide/compiler_cuda.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/compiler_cuda.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/compiler_cuda.h b/src/jit/impl/halide/compiler_cuda.h
index 3ca09fd3..4adac357 100644
--- a/src/jit/impl/halide/compiler_cuda.h
+++ b/src/jit/impl/halide/compiler_cuda.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/compiler_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/halide_executable.cpp b/src/jit/impl/halide/halide_executable.cpp
index ec29d4fd..1ad7ea58 100644
--- a/src/jit/impl/halide/halide_executable.cpp
+++ b/src/jit/impl/halide/halide_executable.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/halide_executable.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/halide_executable.h b/src/jit/impl/halide/halide_executable.h
index 3c922416..b08bb7c7 100644
--- a/src/jit/impl/halide/halide_executable.h
+++ b/src/jit/impl/halide/halide_executable.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/halide_executable.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/halide/halide_header.h b/src/jit/impl/halide/halide_header.h
index 8e893087..9ac6d92a 100644
--- a/src/jit/impl/halide/halide_header.h
+++ b/src/jit/impl/halide/halide_header.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/halide/halide_header.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/internal_graph.cpp b/src/jit/impl/internal_graph.cpp
index e491b340..71cb0449 100644
--- a/src/jit/impl/internal_graph.cpp
+++ b/src/jit/impl/internal_graph.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/internal_graph.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/jit.sereg.h b/src/jit/impl/jit.sereg.h
index 5cbbea69..49cc2ce5 100644
--- a/src/jit/impl/jit.sereg.h
+++ b/src/jit/impl/jit.sereg.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/jit.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/compiler.cpp b/src/jit/impl/mlir/compiler.cpp
index 53bd7eb6..7f087395 100644
--- a/src/jit/impl/mlir/compiler.cpp
+++ b/src/jit/impl/mlir/compiler.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/compiler.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/compiler.h b/src/jit/impl/mlir/compiler.h
index a48ce79f..d2a92f90 100644
--- a/src/jit/impl/mlir/compiler.h
+++ b/src/jit/impl/mlir/compiler.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/compiler.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/executable_cpu.cpp b/src/jit/impl/mlir/executable_cpu.cpp
index 275e8559..5136b4b1 100644
--- a/src/jit/impl/mlir/executable_cpu.cpp
+++ b/src/jit/impl/mlir/executable_cpu.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/executable_cpu.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/executable_cpu.h b/src/jit/impl/mlir/executable_cpu.h
index 730d8361..805081bc 100644
--- a/src/jit/impl/mlir/executable_cpu.h
+++ b/src/jit/impl/mlir/executable_cpu.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/executable_cpu.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/executable_cuda.cpp b/src/jit/impl/mlir/executable_cuda.cpp
index cea26a67..5ca15db7 100644
--- a/src/jit/impl/mlir/executable_cuda.cpp
+++ b/src/jit/impl/mlir/executable_cuda.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/executable_cuda.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/executable_cuda.h b/src/jit/impl/mlir/executable_cuda.h
index 11a12626..47362328 100644
--- a/src/jit/impl/mlir/executable_cuda.h
+++ b/src/jit/impl/mlir/executable_cuda.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/executable_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/common.cpp b/src/jit/impl/mlir/ir/common.cpp
index 64061d9b..15343161 100644
--- a/src/jit/impl/mlir/ir/common.cpp
+++ b/src/jit/impl/mlir/ir/common.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/common.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/common.h b/src/jit/impl/mlir/ir/common.h
index b175c49b..d8c4e9d6 100644
--- a/src/jit/impl/mlir/ir/common.h
+++ b/src/jit/impl/mlir/ir/common.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/common.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/dialect.cpp b/src/jit/impl/mlir/ir/dialect.cpp
index 68dd4e8a..4aef6053 100644
--- a/src/jit/impl/mlir/ir/dialect.cpp
+++ b/src/jit/impl/mlir/ir/dialect.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/dialect.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/each_mode.cpp b/src/jit/impl/mlir/ir/each_mode.cpp
index f2d8c12c..6893962b 100644
--- a/src/jit/impl/mlir/ir/each_mode.cpp
+++ b/src/jit/impl/mlir/ir/each_mode.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/each_mode.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/each_mode.h b/src/jit/impl/mlir/ir/each_mode.h
index 9ddc0da9..74f07fc1 100644
--- a/src/jit/impl/mlir/ir/each_mode.h
+++ b/src/jit/impl/mlir/ir/each_mode.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/each_mode.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/lower_to_affine_pass.cpp b/src/jit/impl/mlir/ir/lower_to_affine_pass.cpp
index c99867ba..700d70a9 100644
--- a/src/jit/impl/mlir/ir/lower_to_affine_pass.cpp
+++ b/src/jit/impl/mlir/ir/lower_to_affine_pass.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/lower_to_affine_pass.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/lower_to_gpu_pass.cpp b/src/jit/impl/mlir/ir/lower_to_gpu_pass.cpp
index c4fc7ebf..3067585d 100644
--- a/src/jit/impl/mlir/ir/lower_to_gpu_pass.cpp
+++ b/src/jit/impl/mlir/ir/lower_to_gpu_pass.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/lower_to_gpu_pass.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/lower_to_llvm_pass.cpp b/src/jit/impl/mlir/ir/lower_to_llvm_pass.cpp
index 34a0bf62..2ab64d7e 100644
--- a/src/jit/impl/mlir/ir/lower_to_llvm_pass.cpp
+++ b/src/jit/impl/mlir/ir/lower_to_llvm_pass.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/lower_to_llvm_pass.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/numerical.cpp b/src/jit/impl/mlir/ir/numerical.cpp
index 4d06ae6c..5f742f04 100644
--- a/src/jit/impl/mlir/ir/numerical.cpp
+++ b/src/jit/impl/mlir/ir/numerical.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/numerical.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/numerical.h b/src/jit/impl/mlir/ir/numerical.h
index 9550701e..8c44a4ad 100644
--- a/src/jit/impl/mlir/ir/numerical.h
+++ b/src/jit/impl/mlir/ir/numerical.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/numerical.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/types.cpp b/src/jit/impl/mlir/ir/types.cpp
index a04755c5..056f6963 100644
--- a/src/jit/impl/mlir/ir/types.cpp
+++ b/src/jit/impl/mlir/ir/types.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/types.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/types.h b/src/jit/impl/mlir/ir/types.h
index dacf2dea..51f29fe2 100644
--- a/src/jit/impl/mlir/ir/types.h
+++ b/src/jit/impl/mlir/ir/types.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/types.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/ir/utils.cpp b/src/jit/impl/mlir/ir/utils.cpp
index 3b40fc90..f0076ea2 100644
--- a/src/jit/impl/mlir/ir/utils.cpp
+++ b/src/jit/impl/mlir/ir/utils.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/ir/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/mlir_gen.cpp b/src/jit/impl/mlir/mlir_gen.cpp
index 234d289d..d0e3fddb 100644
--- a/src/jit/impl/mlir/mlir_gen.cpp
+++ b/src/jit/impl/mlir/mlir_gen.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/mlir_gen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/mlir/mlir_gen.h b/src/jit/impl/mlir/mlir_gen.h
index 21cd8a2a..e54245d8 100644
--- a/src/jit/impl/mlir/mlir_gen.h
+++ b/src/jit/impl/mlir/mlir_gen.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/mlir/mlir_gen.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/nvrtc/codegen_cuda.cpp b/src/jit/impl/nvrtc/codegen_cuda.cpp
index 1a10884f..1cf8b52f 100644
--- a/src/jit/impl/nvrtc/codegen_cuda.cpp
+++ b/src/jit/impl/nvrtc/codegen_cuda.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/nvrtc/codegen_cuda.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/nvrtc/codegen_cuda.h b/src/jit/impl/nvrtc/codegen_cuda.h
index bc74854e..74624b2a 100644
--- a/src/jit/impl/nvrtc/codegen_cuda.h
+++ b/src/jit/impl/nvrtc/codegen_cuda.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/nvrtc/codegen_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/nvrtc/compiler_cuda.cpp b/src/jit/impl/nvrtc/compiler_cuda.cpp
index f8d3dfb4..184bf95a 100644
--- a/src/jit/impl/nvrtc/compiler_cuda.cpp
+++ b/src/jit/impl/nvrtc/compiler_cuda.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/nvrtc/compiler_cuda.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/nvrtc/compiler_cuda.h b/src/jit/impl/nvrtc/compiler_cuda.h
index c90ed856..bcd058c6 100644
--- a/src/jit/impl/nvrtc/compiler_cuda.h
+++ b/src/jit/impl/nvrtc/compiler_cuda.h
@@ -2,7 +2,7 @@
  * \file src/jit/impl/nvrtc/compiler_cuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/placeholder_opr.cpp b/src/jit/impl/placeholder_opr.cpp
index 9de43199..74f5082a 100644
--- a/src/jit/impl/placeholder_opr.cpp
+++ b/src/jit/impl/placeholder_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/placeholder_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/impl/utils.cpp b/src/jit/impl/utils.cpp
index aaf80e65..f2b4f737 100644
--- a/src/jit/impl/utils.cpp
+++ b/src/jit/impl/utils.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/impl/utils.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/ast_c.h b/src/jit/include/megbrain/jit/ast_c.h
index c0d7d1f3..d46f2bfc 100644
--- a/src/jit/include/megbrain/jit/ast_c.h
+++ b/src/jit/include/megbrain/jit/ast_c.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/ast_c.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/base.h b/src/jit/include/megbrain/jit/base.h
index 671d4555..620a439d 100644
--- a/src/jit/include/megbrain/jit/base.h
+++ b/src/jit/include/megbrain/jit/base.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/compiler.h b/src/jit/include/megbrain/jit/compiler.h
index 9778abfd..9f9b12c8 100644
--- a/src/jit/include/megbrain/jit/compiler.h
+++ b/src/jit/include/megbrain/jit/compiler.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/compiler.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/executor_opr.h b/src/jit/include/megbrain/jit/executor_opr.h
index 4bc8b5b5..0f9279f2 100644
--- a/src/jit/include/megbrain/jit/executor_opr.h
+++ b/src/jit/include/megbrain/jit/executor_opr.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/executor_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/fusion_pass.h b/src/jit/include/megbrain/jit/fusion_pass.h
index 398c328e..91a7af9d 100644
--- a/src/jit/include/megbrain/jit/fusion_pass.h
+++ b/src/jit/include/megbrain/jit/fusion_pass.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/fusion_pass.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/internal_graph.h b/src/jit/include/megbrain/jit/internal_graph.h
index 94715536..b5573373 100644
--- a/src/jit/include/megbrain/jit/internal_graph.h
+++ b/src/jit/include/megbrain/jit/internal_graph.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/internal_graph.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/mlir/ir/dialect.h b/src/jit/include/megbrain/jit/mlir/ir/dialect.h
index 12c5ca73..d11c9545 100644
--- a/src/jit/include/megbrain/jit/mlir/ir/dialect.h
+++ b/src/jit/include/megbrain/jit/mlir/ir/dialect.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/mlir/ir/dialect.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/mlir/ir/mgb_dialect.td b/src/jit/include/megbrain/jit/mlir/ir/mgb_dialect.td
index 01706b70..70ed3e4d 100644
--- a/src/jit/include/megbrain/jit/mlir/ir/mgb_dialect.td
+++ b/src/jit/include/megbrain/jit/mlir/ir/mgb_dialect.td
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/mlir/ir/mgb_dialect.td
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/mlir/ir/passes.h b/src/jit/include/megbrain/jit/mlir/ir/passes.h
index 5f15a6ab..1f33dfa2 100644
--- a/src/jit/include/megbrain/jit/mlir/ir/passes.h
+++ b/src/jit/include/megbrain/jit/mlir/ir/passes.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/mlir/ir/passes.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/mlir/ir/utils.h b/src/jit/include/megbrain/jit/mlir/ir/utils.h
index a65f1029..a5b5754a 100644
--- a/src/jit/include/megbrain/jit/mlir/ir/utils.h
+++ b/src/jit/include/megbrain/jit/mlir/ir/utils.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/mlir/ir/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/param_elem_visitor.h b/src/jit/include/megbrain/jit/param_elem_visitor.h
index 81c3dd13..5c08d83e 100644
--- a/src/jit/include/megbrain/jit/param_elem_visitor.h
+++ b/src/jit/include/megbrain/jit/param_elem_visitor.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/param_elem_visitor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/placeholder_opr.h b/src/jit/include/megbrain/jit/placeholder_opr.h
index aacb4277..5af8a624 100644
--- a/src/jit/include/megbrain/jit/placeholder_opr.h
+++ b/src/jit/include/megbrain/jit/placeholder_opr.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/placeholder_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/include/megbrain/jit/utils.h b/src/jit/include/megbrain/jit/utils.h
index 7ca32945..f7ca98f8 100644
--- a/src/jit/include/megbrain/jit/utils.h
+++ b/src/jit/include/megbrain/jit/utils.h
@@ -2,7 +2,7 @@
  * \file src/jit/include/megbrain/jit/utils.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/test/codegen.cpp b/src/jit/test/codegen.cpp
index e36a5172..896aec5a 100644
--- a/src/jit/test/codegen.cpp
+++ b/src/jit/test/codegen.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/test/codegen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/test/fusion.cpp b/src/jit/test/fusion.cpp
index 0561d72b..a91e095c 100644
--- a/src/jit/test/fusion.cpp
+++ b/src/jit/test/fusion.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/test/fusion.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/test/helper.cpp b/src/jit/test/helper.cpp
index eef8f6ef..021bf2e8 100644
--- a/src/jit/test/helper.cpp
+++ b/src/jit/test/helper.cpp
@@ -2,7 +2,7 @@
  * \file src/jit/test/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/test/helper.h b/src/jit/test/helper.h
index f69df975..74cf98ff 100644
--- a/src/jit/test/helper.h
+++ b/src/jit/test/helper.h
@@ -2,7 +2,7 @@
  * \file src/jit/test/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/jit/test/mlir/utils/lit.bzl.cfg.py b/src/jit/test/mlir/utils/lit.bzl.cfg.py
index 64eb7b5d..fcad5d91 100644
--- a/src/jit/test/mlir/utils/lit.bzl.cfg.py
+++ b/src/jit/test/mlir/utils/lit.bzl.cfg.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/src/jit/test/mlir/utils/lit.bzl.site.cfg.py b/src/jit/test/mlir/utils/lit.bzl.site.cfg.py
index c1499052..45e27c15 100644
--- a/src/jit/test/mlir/utils/lit.bzl.site.cfg.py
+++ b/src/jit/test/mlir/utils/lit.bzl.site.cfg.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/src/jit/test/mlir/utils/lit.cfg.py b/src/jit/test/mlir/utils/lit.cfg.py
index a4a06252..e8d79811 100644
--- a/src/jit/test/mlir/utils/lit.cfg.py
+++ b/src/jit/test/mlir/utils/lit.cfg.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
diff --git a/src/megbrain_build_config.h.in b/src/megbrain_build_config.h.in
index 0db1250f..c5060346 100644
--- a/src/megbrain_build_config.h.in
+++ b/src/megbrain_build_config.h.in
@@ -2,7 +2,7 @@
  * \file src/core/include/megbrain_build_config.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/collective_comm.cpp b/src/opr-mm/impl/collective_comm.cpp
index b14f81d3..786a7516 100644
--- a/src/opr-mm/impl/collective_comm.cpp
+++ b/src/opr-mm/impl/collective_comm.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/impl/collective_comm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/group_manager.cpp b/src/opr-mm/impl/group_manager.cpp
index 698bb2f0..9054c92b 100644
--- a/src/opr-mm/impl/group_manager.cpp
+++ b/src/opr-mm/impl/group_manager.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/impl/group_manager.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/io_remote.cpp b/src/opr-mm/impl/io_remote.cpp
index b0285ba1..bc352617 100644
--- a/src/opr-mm/impl/io_remote.cpp
+++ b/src/opr-mm/impl/io_remote.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/impl/io_remote.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/lock.cpp b/src/opr-mm/impl/lock.cpp
index e7f79658..48f4ad10 100644
--- a/src/opr-mm/impl/lock.cpp
+++ b/src/opr-mm/impl/lock.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/impl/lock.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/megray_helper.cpp b/src/opr-mm/impl/megray_helper.cpp
index 1d99b907..2f4c688f 100644
--- a/src/opr-mm/impl/megray_helper.cpp
+++ b/src/opr-mm/impl/megray_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/impl/megray_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/impl/mm_handler.cpp b/src/opr-mm/impl/mm_handler.cpp
index 1dc9381d..be03601c 100644
--- a/src/opr-mm/impl/mm_handler.cpp
+++ b/src/opr-mm/impl/mm_handler.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/opr-mm/include/megbrain/opr/collective_comm.h b/src/opr-mm/include/megbrain/opr/collective_comm.h
index 677dab77..a8a73afc 100644
--- a/src/opr-mm/include/megbrain/opr/collective_comm.h
+++ b/src/opr-mm/include/megbrain/opr/collective_comm.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/include/megbrain/opr/collective_comm.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/include/megbrain/opr/group_manager.h b/src/opr-mm/include/megbrain/opr/group_manager.h
index 3ee7222f..d397be82 100644
--- a/src/opr-mm/include/megbrain/opr/group_manager.h
+++ b/src/opr-mm/include/megbrain/opr/group_manager.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/include/megbrain/opr/group_manager.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/include/megbrain/opr/io_remote.h b/src/opr-mm/include/megbrain/opr/io_remote.h
index a5bb9ec6..04929b6a 100644
--- a/src/opr-mm/include/megbrain/opr/io_remote.h
+++ b/src/opr-mm/include/megbrain/opr/io_remote.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/include/megbrain/opr/io_remote.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/include/megbrain/opr/lock.h b/src/opr-mm/include/megbrain/opr/lock.h
index 6cc46ccc..f62d4d6b 100644
--- a/src/opr-mm/include/megbrain/opr/lock.h
+++ b/src/opr-mm/include/megbrain/opr/lock.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/include/megbrain/opr/lock.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/include/megbrain/opr/megray_helper.h b/src/opr-mm/include/megbrain/opr/megray_helper.h
index da4d47a1..ac5f4787 100644
--- a/src/opr-mm/include/megbrain/opr/megray_helper.h
+++ b/src/opr-mm/include/megbrain/opr/megray_helper.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/include/megbrain/opr/megray_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/include/megbrain/opr/mm_handler.h b/src/opr-mm/include/megbrain/opr/mm_handler.h
index c5e5c0f6..49860d90 100644
--- a/src/opr-mm/include/megbrain/opr/mm_handler.h
+++ b/src/opr-mm/include/megbrain/opr/mm_handler.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/opr-mm/test/collective_comm.cpp b/src/opr-mm/test/collective_comm.cpp
index 5b9755e8..078759f9 100644
--- a/src/opr-mm/test/collective_comm.cpp
+++ b/src/opr-mm/test/collective_comm.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/test/collective_comm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/test/io_remote.cpp b/src/opr-mm/test/io_remote.cpp
index 3f965f83..e58cbe32 100644
--- a/src/opr-mm/test/io_remote.cpp
+++ b/src/opr-mm/test/io_remote.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/test/io_remote.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/test/lock.cpp b/src/opr-mm/test/lock.cpp
index 56451848..8053a1b2 100644
--- a/src/opr-mm/test/lock.cpp
+++ b/src/opr-mm/test/lock.cpp
@@ -2,7 +2,7 @@
  * \file src/opr-mm/test/lock.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr-mm/test/mock_client.h b/src/opr-mm/test/mock_client.h
index fa02f3e6..a0e5f57f 100644
--- a/src/opr-mm/test/mock_client.h
+++ b/src/opr-mm/test/mock_client.h
@@ -2,7 +2,7 @@
  * \file src/opr-mm/test/mock_client.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/atlas_runtime_op.cpp b/src/opr/impl/atlas_runtime_op.cpp
index 46d3e437..b6323cf8 100644
--- a/src/opr/impl/atlas_runtime_op.cpp
+++ b/src/opr/impl/atlas_runtime_op.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/atlas_runtime_op.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/atlas_runtime_op.sereg.h b/src/opr/impl/atlas_runtime_op.sereg.h
index b81848c1..2110e8a6 100644
--- a/src/opr/impl/atlas_runtime_op.sereg.h
+++ b/src/opr/impl/atlas_runtime_op.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/atlas_runtime_opr.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/basic_arith.cpp b/src/opr/impl/basic_arith.cpp
index 56897fc5..7570f714 100644
--- a/src/opr/impl/basic_arith.cpp
+++ b/src/opr/impl/basic_arith.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/basic_arith.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/basic_arith.sereg.h b/src/opr/impl/basic_arith.sereg.h
index 1db4ba75..84c086aa 100644
--- a/src/opr/impl/basic_arith.sereg.h
+++ b/src/opr/impl/basic_arith.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/basic_arith.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/blas.cpp b/src/opr/impl/blas.cpp
index bb89a0a1..32ddf4eb 100644
--- a/src/opr/impl/blas.cpp
+++ b/src/opr/impl/blas.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/blas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/blas.sereg.h b/src/opr/impl/blas.sereg.h
index 5ffb29cf..04813fc9 100644
--- a/src/opr/impl/blas.sereg.h
+++ b/src/opr/impl/blas.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/blas.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/cond.cpp b/src/opr/impl/cond.cpp
index 66f29b24..905f7d01 100644
--- a/src/opr/impl/cond.cpp
+++ b/src/opr/impl/cond.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/cond.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/cond.sereg.h b/src/opr/impl/cond.sereg.h
index 362c587a..d4bf53f3 100644
--- a/src/opr/impl/cond.sereg.h
+++ b/src/opr/impl/cond.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/cond.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/adaptive_pooling.cpp b/src/opr/impl/dnn/adaptive_pooling.cpp
index 14ec425e..8a80947e 100644
--- a/src/opr/impl/dnn/adaptive_pooling.cpp
+++ b/src/opr/impl/dnn/adaptive_pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/adaptive_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/batch_norm.cpp b/src/opr/impl/dnn/batch_norm.cpp
index 8fb4e3a3..d58c17f6 100644
--- a/src/opr/impl/dnn/batch_norm.cpp
+++ b/src/opr/impl/dnn/batch_norm.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/batch_norm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/convolution.cpp b/src/opr/impl/dnn/convolution.cpp
index 6402335d..8a061dcc 100644
--- a/src/opr/impl/dnn/convolution.cpp
+++ b/src/opr/impl/dnn/convolution.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/dnn.sereg.h b/src/opr/impl/dnn/dnn.sereg.h
index 9a90e6c9..059585e8 100644
--- a/src/opr/impl/dnn/dnn.sereg.h
+++ b/src/opr/impl/dnn/dnn.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/dnn.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/fake_quant.cpp b/src/opr/impl/dnn/fake_quant.cpp
index f910947e..2b2bb6dc 100644
--- a/src/opr/impl/dnn/fake_quant.cpp
+++ b/src/opr/impl/dnn/fake_quant.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/fake_quant.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/helper.h b/src/opr/impl/dnn/helper.h
index c3c65e1b..0bc0e3f8 100644
--- a/src/opr/impl/dnn/helper.h
+++ b/src/opr/impl/dnn/helper.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/images2neibs.cpp b/src/opr/impl/dnn/images2neibs.cpp
index e3bba152..de984ddc 100644
--- a/src/opr/impl/dnn/images2neibs.cpp
+++ b/src/opr/impl/dnn/images2neibs.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/images2neibs.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/local.cpp b/src/opr/impl/dnn/local.cpp
index 6795ed7e..2b69d9c2 100644
--- a/src/opr/impl/dnn/local.cpp
+++ b/src/opr/impl/dnn/local.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/lrn.cpp b/src/opr/impl/dnn/lrn.cpp
index 26395e64..95aecac7 100644
--- a/src/opr/impl/dnn/lrn.cpp
+++ b/src/opr/impl/dnn/lrn.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/lrn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/pooling.cpp b/src/opr/impl/dnn/pooling.cpp
index 01f3742a..21fc9480 100644
--- a/src/opr/impl/dnn/pooling.cpp
+++ b/src/opr/impl/dnn/pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/roi_align.cpp b/src/opr/impl/dnn/roi_align.cpp
index 5ebf401d..b74a5771 100644
--- a/src/opr/impl/dnn/roi_align.cpp
+++ b/src/opr/impl/dnn/roi_align.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/roi_align.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/roi_pooling.cpp b/src/opr/impl/dnn/roi_pooling.cpp
index 90d03092..f8886b49 100644
--- a/src/opr/impl/dnn/roi_pooling.cpp
+++ b/src/opr/impl/dnn/roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/dnn/tqt.cpp b/src/opr/impl/dnn/tqt.cpp
index 84934765..18d653af 100644
--- a/src/opr/impl/dnn/tqt.cpp
+++ b/src/opr/impl/dnn/tqt.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/dnn/tqt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/imgproc.cpp b/src/opr/impl/imgproc.cpp
index 58e497ef..1d424b40 100644
--- a/src/opr/impl/imgproc.cpp
+++ b/src/opr/impl/imgproc.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/imgproc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/imgproc.sereg.h b/src/opr/impl/imgproc.sereg.h
index e50d85e1..effacd3d 100644
--- a/src/opr/impl/imgproc.sereg.h
+++ b/src/opr/impl/imgproc.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/imgproc.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/indexing.cpp b/src/opr/impl/indexing.cpp
index f41129cd..2edee142 100644
--- a/src/opr/impl/indexing.cpp
+++ b/src/opr/impl/indexing.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/indexing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/indexing.sereg.h b/src/opr/impl/indexing.sereg.h
index d73f9ab2..c4e120ba 100644
--- a/src/opr/impl/indexing.sereg.h
+++ b/src/opr/impl/indexing.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/indexing.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/identical_fwd.cpp b/src/opr/impl/internal/identical_fwd.cpp
index 0afd21a7..5512d345 100644
--- a/src/opr/impl/internal/identical_fwd.cpp
+++ b/src/opr/impl/internal/identical_fwd.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/identical_fwd.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/indexing_helper.cpp b/src/opr/impl/internal/indexing_helper.cpp
index df6a81a9..db4f9087 100644
--- a/src/opr/impl/internal/indexing_helper.cpp
+++ b/src/opr/impl/internal/indexing_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/indexing_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/megdnn_opr_wrapper.cpp b/src/opr/impl/internal/megdnn_opr_wrapper.cpp
index 82e66a0d..8c6acb88 100644
--- a/src/opr/impl/internal/megdnn_opr_wrapper.cpp
+++ b/src/opr/impl/internal/megdnn_opr_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/megdnn_opr_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/megdnn_opr_wrapper.inl b/src/opr/impl/internal/megdnn_opr_wrapper.inl
index 04c642b5..3ad5e83e 100644
--- a/src/opr/impl/internal/megdnn_opr_wrapper.inl
+++ b/src/opr/impl/internal/megdnn_opr_wrapper.inl
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/megdnn_opr_wrapper.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/megdnn_opr_wrapper_megdnn_opr_meth_invoker_impl.inl b/src/opr/impl/internal/megdnn_opr_wrapper_megdnn_opr_meth_invoker_impl.inl
index 0d752c1d..c23c27a0 100644
--- a/src/opr/impl/internal/megdnn_opr_wrapper_megdnn_opr_meth_invoker_impl.inl
+++ b/src/opr/impl/internal/megdnn_opr_wrapper_megdnn_opr_meth_invoker_impl.inl
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/megdnn_opr_wrapper_megdnn_opr_meth_invoker_impl.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/internal/out_shape_by_sym_var.cpp b/src/opr/impl/internal/out_shape_by_sym_var.cpp
index 5a4ecf4a..30a56c93 100644
--- a/src/opr/impl/internal/out_shape_by_sym_var.cpp
+++ b/src/opr/impl/internal/out_shape_by_sym_var.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/internal/out_shape_by_sym_var.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/io.cpp b/src/opr/impl/io.cpp
index ee0da3e5..e8753be6 100644
--- a/src/opr/impl/io.cpp
+++ b/src/opr/impl/io.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/io.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/io.sereg.h b/src/opr/impl/io.sereg.h
index f41898db..ac609d4a 100644
--- a/src/opr/impl/io.sereg.h
+++ b/src/opr/impl/io.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/io.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/forward.cpp b/src/opr/impl/loop/forward.cpp
index bce04c77..679243ab 100644
--- a/src/opr/impl/loop/forward.cpp
+++ b/src/opr/impl/loop/forward.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/forward.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/forward.sereg.h b/src/opr/impl/loop/forward.sereg.h
index 030715d2..091a3133 100644
--- a/src/opr/impl/loop/forward.sereg.h
+++ b/src/opr/impl/loop/forward.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/forward.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/forward_sereg.cpp b/src/opr/impl/loop/forward_sereg.cpp
index a3dfec5d..353c65f0 100644
--- a/src/opr/impl/loop/forward_sereg.cpp
+++ b/src/opr/impl/loop/forward_sereg.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/forward_sereg.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/forward_sereg.h b/src/opr/impl/loop/forward_sereg.h
index 84241467..4bd00c01 100644
--- a/src/opr/impl/loop/forward_sereg.h
+++ b/src/opr/impl/loop/forward_sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/forward_sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/grad.cpp b/src/opr/impl/loop/grad.cpp
index fd6ada5b..44c33bb4 100644
--- a/src/opr/impl/loop/grad.cpp
+++ b/src/opr/impl/loop/grad.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/grad.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/grad.h b/src/opr/impl/loop/grad.h
index ddc3934b..5ef843ee 100644
--- a/src/opr/impl/loop/grad.h
+++ b/src/opr/impl/loop/grad.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/grad.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/grad.sereg.h b/src/opr/impl/loop/grad.sereg.h
index a84a1894..2b64ed2b 100644
--- a/src/opr/impl/loop/grad.sereg.h
+++ b/src/opr/impl/loop/grad.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/grad.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/grad_sereg.cpp b/src/opr/impl/loop/grad_sereg.cpp
index b57eb516..3287e96d 100644
--- a/src/opr/impl/loop/grad_sereg.cpp
+++ b/src/opr/impl/loop/grad_sereg.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/grad_sereg.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/grad_sereg.h b/src/opr/impl/loop/grad_sereg.h
index 87a4ac62..48511bdf 100644
--- a/src/opr/impl/loop/grad_sereg.h
+++ b/src/opr/impl/loop/grad_sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/grad_sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/impl.cpp b/src/opr/impl/loop/impl.cpp
index e34b5971..d2f6b61b 100644
--- a/src/opr/impl/loop/impl.cpp
+++ b/src/opr/impl/loop/impl.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/impl.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/impl.h b/src/opr/impl/loop/impl.h
index b03b5da7..becaea90 100644
--- a/src/opr/impl/loop/impl.h
+++ b/src/opr/impl/loop/impl.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/impl.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/output_recorder.cpp b/src/opr/impl/loop/output_recorder.cpp
index cad47589..a1c1c6a0 100644
--- a/src/opr/impl/loop/output_recorder.cpp
+++ b/src/opr/impl/loop/output_recorder.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/output_recorder.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/loop/output_recorder.h b/src/opr/impl/loop/output_recorder.h
index a4781960..317ffc33 100644
--- a/src/opr/impl/loop/output_recorder.h
+++ b/src/opr/impl/loop/output_recorder.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/loop/output_recorder.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/misc.cpp b/src/opr/impl/misc.cpp
index 93931680..f557e2b6 100644
--- a/src/opr/impl/misc.cpp
+++ b/src/opr/impl/misc.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/misc.sereg.h b/src/opr/impl/misc.sereg.h
index a3780ac8..3e4c16e3 100644
--- a/src/opr/impl/misc.sereg.h
+++ b/src/opr/impl/misc.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/misc.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/muxing.cpp b/src/opr/impl/muxing.cpp
index 4d8a4a5f..e4b40665 100644
--- a/src/opr/impl/muxing.cpp
+++ b/src/opr/impl/muxing.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/muxing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nn_int.cpp b/src/opr/impl/nn_int.cpp
index 469ad5f7..1238e2b5 100644
--- a/src/opr/impl/nn_int.cpp
+++ b/src/opr/impl/nn_int.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/nn_int.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nn_int.sereg.h b/src/opr/impl/nn_int.sereg.h
index 1fb9aa80..91169150 100644
--- a/src/opr/impl/nn_int.sereg.h
+++ b/src/opr/impl/nn_int.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/nn_int.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/NvOF.cpp b/src/opr/impl/nvof/NvOF.cpp
index 3b7d87b9..d696eb5b 100644
--- a/src/opr/impl/nvof/NvOF.cpp
+++ b/src/opr/impl/nvof/NvOF.cpp
@@ -13,7 +13,7 @@
  * \file src/opr/impl/nvof/NvOF.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/NvOF.h b/src/opr/impl/nvof/NvOF.h
index f0a8e40b..1fe34feb 100644
--- a/src/opr/impl/nvof/NvOF.h
+++ b/src/opr/impl/nvof/NvOF.h
@@ -13,7 +13,7 @@
  * \file src/opr/impl/nvof/NvOF.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/NvOFCuda.cpp b/src/opr/impl/nvof/NvOFCuda.cpp
index b82ba74b..c117d002 100644
--- a/src/opr/impl/nvof/NvOFCuda.cpp
+++ b/src/opr/impl/nvof/NvOFCuda.cpp
@@ -13,7 +13,7 @@
  * \file src/opr/impl/nvof/NvOFCuda.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/NvOFCuda.h b/src/opr/impl/nvof/NvOFCuda.h
index 35c14736..afaea985 100644
--- a/src/opr/impl/nvof/NvOFCuda.h
+++ b/src/opr/impl/nvof/NvOFCuda.h
@@ -13,7 +13,7 @@
  * \file src/opr/impl/nvof/NvOFCuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/NvOFDefines.h b/src/opr/impl/nvof/NvOFDefines.h
index 1d4a09d0..de76bb30 100644
--- a/src/opr/impl/nvof/NvOFDefines.h
+++ b/src/opr/impl/nvof/NvOFDefines.h
@@ -13,7 +13,7 @@
  * \file src/opr/impl/nvof/NvOFDefines.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/denseflownvidia.cpp b/src/opr/impl/nvof/denseflownvidia.cpp
index 5793018b..5b8cc8f5 100644
--- a/src/opr/impl/nvof/denseflownvidia.cpp
+++ b/src/opr/impl/nvof/denseflownvidia.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/nvof/denseflownvidia.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/denseflownvidia.h b/src/opr/impl/nvof/denseflownvidia.h
index c8c7b546..92946284 100644
--- a/src/opr/impl/nvof/denseflownvidia.h
+++ b/src/opr/impl/nvof/denseflownvidia.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/nvof/denseflownvidia.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/nvOpticalFlowCommon.h b/src/opr/impl/nvof/nvOpticalFlowCommon.h
index f5ea372e..392b7a30 100644
--- a/src/opr/impl/nvof/nvOpticalFlowCommon.h
+++ b/src/opr/impl/nvof/nvOpticalFlowCommon.h
@@ -38,7 +38,7 @@
  * \file src/opr/impl/nvof/nvOpticalFlowCommon.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/nvof/nvOpticalFlowCuda.h b/src/opr/impl/nvof/nvOpticalFlowCuda.h
index 2cbf63e0..a09ece1b 100644
--- a/src/opr/impl/nvof/nvOpticalFlowCuda.h
+++ b/src/opr/impl/nvof/nvOpticalFlowCuda.h
@@ -37,7 +37,7 @@
  * \file src/opr/impl/nvof/nvOpticalFlowCuda.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/rand.cpp b/src/opr/impl/rand.cpp
index e25d5f91..7bc0c724 100644
--- a/src/opr/impl/rand.cpp
+++ b/src/opr/impl/rand.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/rand.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/rand.sereg.h b/src/opr/impl/rand.sereg.h
index e319e3ed..68869f0b 100644
--- a/src/opr/impl/rand.sereg.h
+++ b/src/opr/impl/rand.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/rand.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/search_policy/algo_chooser.cpp b/src/opr/impl/search_policy/algo_chooser.cpp
index f9d72994..4860a4d5 100644
--- a/src/opr/impl/search_policy/algo_chooser.cpp
+++ b/src/opr/impl/search_policy/algo_chooser.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/search_policy/algo_chooser.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/search_policy/algo_chooser_helper.cpp b/src/opr/impl/search_policy/algo_chooser_helper.cpp
index 5ccf388f..49e9ca19 100644
--- a/src/opr/impl/search_policy/algo_chooser_helper.cpp
+++ b/src/opr/impl/search_policy/algo_chooser_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/search_policy/algo_chooser_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/search_policy/profiler.cpp b/src/opr/impl/search_policy/profiler.cpp
index 1b3c7c83..2d25eab7 100644
--- a/src/opr/impl/search_policy/profiler.cpp
+++ b/src/opr/impl/search_policy/profiler.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/search_policy/profile.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/search_policy/workspace_need_limit_getter.inl b/src/opr/impl/search_policy/workspace_need_limit_getter.inl
index 73be379f..d8defec9 100644
--- a/src/opr/impl/search_policy/workspace_need_limit_getter.inl
+++ b/src/opr/impl/search_policy/workspace_need_limit_getter.inl
@@ -2,7 +2,7 @@
  * \file src/opr/impl/search_policy/workspace_need_limit_getter.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/tensor_gen.cpp b/src/opr/impl/tensor_gen.cpp
index 47b102fe..53a409a0 100644
--- a/src/opr/impl/tensor_gen.cpp
+++ b/src/opr/impl/tensor_gen.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/tensor_gen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/tensor_gen.sereg.h b/src/opr/impl/tensor_gen.sereg.h
index b67aa74a..c91f8db7 100644
--- a/src/opr/impl/tensor_gen.sereg.h
+++ b/src/opr/impl/tensor_gen.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/tensor_gen.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/tensor_manip.cpp b/src/opr/impl/tensor_manip.cpp
index 1a71a5af..03e453bc 100644
--- a/src/opr/impl/tensor_manip.cpp
+++ b/src/opr/impl/tensor_manip.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/tensor_manip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/tensor_manip.sereg.h b/src/opr/impl/tensor_manip.sereg.h
index adb5db42..1926136d 100644
--- a/src/opr/impl/tensor_manip.sereg.h
+++ b/src/opr/impl/tensor_manip.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/tensor_manip.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/utility.cpp b/src/opr/impl/utility.cpp
index 0463572e..808e858f 100644
--- a/src/opr/impl/utility.cpp
+++ b/src/opr/impl/utility.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/impl/utility.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/impl/utility.sereg.h b/src/opr/impl/utility.sereg.h
index eb866117..61e4c7f3 100644
--- a/src/opr/impl/utility.sereg.h
+++ b/src/opr/impl/utility.sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/impl/utility.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/atlas_runtime_op.h b/src/opr/include/megbrain/opr/atlas_runtime_op.h
index eca1800b..eb6a9f34 100644
--- a/src/opr/include/megbrain/opr/atlas_runtime_op.h
+++ b/src/opr/include/megbrain/opr/atlas_runtime_op.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/atlas_runtime_op.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/basic_arith.h b/src/opr/include/megbrain/opr/basic_arith.h
index e541e553..848ecc44 100644
--- a/src/opr/include/megbrain/opr/basic_arith.h
+++ b/src/opr/include/megbrain/opr/basic_arith.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/basic_arith.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/basic_arith_wrapper.h b/src/opr/include/megbrain/opr/basic_arith_wrapper.h
index 2397e83b..4ea820b2 100644
--- a/src/opr/include/megbrain/opr/basic_arith_wrapper.h
+++ b/src/opr/include/megbrain/opr/basic_arith_wrapper.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/basic_arith_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/blas.h b/src/opr/include/megbrain/opr/blas.h
index f007195c..12227cdc 100644
--- a/src/opr/include/megbrain/opr/blas.h
+++ b/src/opr/include/megbrain/opr/blas.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/blas.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/cond.h b/src/opr/include/megbrain/opr/cond.h
index 0a20b5c5..33fbfb75 100644
--- a/src/opr/include/megbrain/opr/cond.h
+++ b/src/opr/include/megbrain/opr/cond.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/cond.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/adaptive_pooling.h b/src/opr/include/megbrain/opr/dnn/adaptive_pooling.h
index aa94f9c1..f77a4b17 100644
--- a/src/opr/include/megbrain/opr/dnn/adaptive_pooling.h
+++ b/src/opr/include/megbrain/opr/dnn/adaptive_pooling.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/adaptive_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/batch_norm.h b/src/opr/include/megbrain/opr/dnn/batch_norm.h
index c3ca2f24..774582de 100644
--- a/src/opr/include/megbrain/opr/dnn/batch_norm.h
+++ b/src/opr/include/megbrain/opr/dnn/batch_norm.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/batch_norm.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/convolution.h b/src/opr/include/megbrain/opr/dnn/convolution.h
index 4af1bfc2..bf005d72 100644
--- a/src/opr/include/megbrain/opr/dnn/convolution.h
+++ b/src/opr/include/megbrain/opr/dnn/convolution.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/convolution.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/fake_quant.h b/src/opr/include/megbrain/opr/dnn/fake_quant.h
index e73fe1ad..7b42e01c 100644
--- a/src/opr/include/megbrain/opr/dnn/fake_quant.h
+++ b/src/opr/include/megbrain/opr/dnn/fake_quant.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/fake_quant.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/images2neibs.h b/src/opr/include/megbrain/opr/dnn/images2neibs.h
index 49126f97..ac1c3a2f 100644
--- a/src/opr/include/megbrain/opr/dnn/images2neibs.h
+++ b/src/opr/include/megbrain/opr/dnn/images2neibs.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/images2neibs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/local.h b/src/opr/include/megbrain/opr/dnn/local.h
index 0363e9a2..0a89d4da 100644
--- a/src/opr/include/megbrain/opr/dnn/local.h
+++ b/src/opr/include/megbrain/opr/dnn/local.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/local.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/lrn.h b/src/opr/include/megbrain/opr/dnn/lrn.h
index 364495dd..347df58a 100644
--- a/src/opr/include/megbrain/opr/dnn/lrn.h
+++ b/src/opr/include/megbrain/opr/dnn/lrn.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/lrn.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/pooling.h b/src/opr/include/megbrain/opr/dnn/pooling.h
index 6f8f99ee..83b7ba80 100644
--- a/src/opr/include/megbrain/opr/dnn/pooling.h
+++ b/src/opr/include/megbrain/opr/dnn/pooling.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/roi_align.h b/src/opr/include/megbrain/opr/dnn/roi_align.h
index 43515828..cb4faa6b 100644
--- a/src/opr/include/megbrain/opr/dnn/roi_align.h
+++ b/src/opr/include/megbrain/opr/dnn/roi_align.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/roi_align.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/roi_pooling.h b/src/opr/include/megbrain/opr/dnn/roi_pooling.h
index 405fb04f..692a2834 100644
--- a/src/opr/include/megbrain/opr/dnn/roi_pooling.h
+++ b/src/opr/include/megbrain/opr/dnn/roi_pooling.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/roi_pooling.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/dnn/tqt.h b/src/opr/include/megbrain/opr/dnn/tqt.h
index 61b39571..5ef9fed1 100644
--- a/src/opr/include/megbrain/opr/dnn/tqt.h
+++ b/src/opr/include/megbrain/opr/dnn/tqt.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/dnn/tqt.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/imgproc.h b/src/opr/include/megbrain/opr/imgproc.h
index d4fabc9e..7bfc71c2 100644
--- a/src/opr/include/megbrain/opr/imgproc.h
+++ b/src/opr/include/megbrain/opr/imgproc.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/imgproc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/indexing.h b/src/opr/include/megbrain/opr/indexing.h
index d9104100..60c655e3 100644
--- a/src/opr/include/megbrain/opr/indexing.h
+++ b/src/opr/include/megbrain/opr/indexing.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/indexing.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/identical_fwd.h b/src/opr/include/megbrain/opr/internal/identical_fwd.h
index 8e2b7702..cc643a1f 100644
--- a/src/opr/include/megbrain/opr/internal/identical_fwd.h
+++ b/src/opr/include/megbrain/opr/internal/identical_fwd.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/identical_fwd.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/indexing_helper.h b/src/opr/include/megbrain/opr/internal/indexing_helper.h
index bf6a5519..9f6406d7 100644
--- a/src/opr/include/megbrain/opr/internal/indexing_helper.h
+++ b/src/opr/include/megbrain/opr/internal/indexing_helper.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/indexing_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/indexing_helper_sereg.h b/src/opr/include/megbrain/opr/internal/indexing_helper_sereg.h
index 2d1ec286..ddf07b74 100644
--- a/src/opr/include/megbrain/opr/internal/indexing_helper_sereg.h
+++ b/src/opr/include/megbrain/opr/internal/indexing_helper_sereg.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/indexing_helper_sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/megdnn_opr_wrapper.h b/src/opr/include/megbrain/opr/internal/megdnn_opr_wrapper.h
index 236eadaa..916488dd 100644
--- a/src/opr/include/megbrain/opr/internal/megdnn_opr_wrapper.h
+++ b/src/opr/include/megbrain/opr/internal/megdnn_opr_wrapper.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/megdnn_opr_wrapper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/mixin_base.h b/src/opr/include/megbrain/opr/internal/mixin_base.h
index fb6b32a5..5f8d7ea2 100644
--- a/src/opr/include/megbrain/opr/internal/mixin_base.h
+++ b/src/opr/include/megbrain/opr/internal/mixin_base.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/mixin_base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/out_shape_by_sym_var.h b/src/opr/include/megbrain/opr/internal/out_shape_by_sym_var.h
index d6352337..fb10d709 100644
--- a/src/opr/include/megbrain/opr/internal/out_shape_by_sym_var.h
+++ b/src/opr/include/megbrain/opr/internal/out_shape_by_sym_var.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/out_shape_by_sym_var.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/internal/param_tag_defs.h b/src/opr/include/megbrain/opr/internal/param_tag_defs.h
index 843d7507..ed82dce7 100644
--- a/src/opr/include/megbrain/opr/internal/param_tag_defs.h
+++ b/src/opr/include/megbrain/opr/internal/param_tag_defs.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/internal/param_tag_defs.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/io.h b/src/opr/include/megbrain/opr/io.h
index d6b4c1ec..040e2621 100644
--- a/src/opr/include/megbrain/opr/io.h
+++ b/src/opr/include/megbrain/opr/io.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/io.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/loop.h b/src/opr/include/megbrain/opr/loop.h
index f254223b..8ade6d3c 100644
--- a/src/opr/include/megbrain/opr/loop.h
+++ b/src/opr/include/megbrain/opr/loop.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/loop.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/misc.h b/src/opr/include/megbrain/opr/misc.h
index c3826dba..63d17b59 100644
--- a/src/opr/include/megbrain/opr/misc.h
+++ b/src/opr/include/megbrain/opr/misc.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/misc.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/muxing.h b/src/opr/include/megbrain/opr/muxing.h
index a74fc3dd..5129a435 100644
--- a/src/opr/include/megbrain/opr/muxing.h
+++ b/src/opr/include/megbrain/opr/muxing.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/muxing.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/nn_int.h b/src/opr/include/megbrain/opr/nn_int.h
index 5b608ad2..2d72f33e 100644
--- a/src/opr/include/megbrain/opr/nn_int.h
+++ b/src/opr/include/megbrain/opr/nn_int.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/nn_int.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/rand.h b/src/opr/include/megbrain/opr/rand.h
index f4fc4526..b1508a58 100644
--- a/src/opr/include/megbrain/opr/rand.h
+++ b/src/opr/include/megbrain/opr/rand.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/rand.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/search_policy/algo_chooser.h b/src/opr/include/megbrain/opr/search_policy/algo_chooser.h
index 1a193921..d4ffbbd1 100644
--- a/src/opr/include/megbrain/opr/search_policy/algo_chooser.h
+++ b/src/opr/include/megbrain/opr/search_policy/algo_chooser.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/search_policy/algo_chooser.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/search_policy/algo_chooser_helper.h b/src/opr/include/megbrain/opr/search_policy/algo_chooser_helper.h
index c0b8699a..8c69ab35 100644
--- a/src/opr/include/megbrain/opr/search_policy/algo_chooser_helper.h
+++ b/src/opr/include/megbrain/opr/search_policy/algo_chooser_helper.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/search_policy/algo_chooser_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/search_policy/profiler.h b/src/opr/include/megbrain/opr/search_policy/profiler.h
index a59ba5eb..02d07632 100644
--- a/src/opr/include/megbrain/opr/search_policy/profiler.h
+++ b/src/opr/include/megbrain/opr/search_policy/profiler.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/search_policy/profile.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/tensor_gen.h b/src/opr/include/megbrain/opr/tensor_gen.h
index bb2efe2b..75f0d7b3 100644
--- a/src/opr/include/megbrain/opr/tensor_gen.h
+++ b/src/opr/include/megbrain/opr/tensor_gen.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/tensor_gen.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/tensor_manip.h b/src/opr/include/megbrain/opr/tensor_manip.h
index 1c7b15aa..dd3713e3 100644
--- a/src/opr/include/megbrain/opr/tensor_manip.h
+++ b/src/opr/include/megbrain/opr/tensor_manip.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/tensor_manip.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/include/megbrain/opr/utility.h b/src/opr/include/megbrain/opr/utility.h
index 37783dec..8f3cf6b8 100644
--- a/src/opr/include/megbrain/opr/utility.h
+++ b/src/opr/include/megbrain/opr/utility.h
@@ -2,7 +2,7 @@
  * \file src/opr/include/megbrain/opr/utility.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/atlas_runtime_op.cpp b/src/opr/test/atlas_runtime_op.cpp
index b837da44..883d71a0 100644
--- a/src/opr/test/atlas_runtime_op.cpp
+++ b/src/opr/test/atlas_runtime_op.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/atlas_runtime_op.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/elemwise.cpp b/src/opr/test/basic_arith/elemwise.cpp
index dc3e92c0..87aac28e 100644
--- a/src/opr/test/basic_arith/elemwise.cpp
+++ b/src/opr/test/basic_arith/elemwise.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/elemwise.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/elemwise_binary_trait_def.inl b/src/opr/test/basic_arith/elemwise_binary_trait_def.inl
index 0a70f1b9..481667d9 100644
--- a/src/opr/test/basic_arith/elemwise_binary_trait_def.inl
+++ b/src/opr/test/basic_arith/elemwise_binary_trait_def.inl
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/elemwise_binary_trait_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/elemwise_ternary_trait_def.inl b/src/opr/test/basic_arith/elemwise_ternary_trait_def.inl
index 4c4a5fda..5c0dc1df 100644
--- a/src/opr/test/basic_arith/elemwise_ternary_trait_def.inl
+++ b/src/opr/test/basic_arith/elemwise_ternary_trait_def.inl
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/elemwise_ternary_trait_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/elemwise_unary_trait_def.inl b/src/opr/test/basic_arith/elemwise_unary_trait_def.inl
index e0e9d41b..1d1d64c6 100644
--- a/src/opr/test/basic_arith/elemwise_unary_trait_def.inl
+++ b/src/opr/test/basic_arith/elemwise_unary_trait_def.inl
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/elemwise_unary_trait_def.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/erfinv.h b/src/opr/test/basic_arith/erfinv.h
index 284c3008..3a6d53ec 100644
--- a/src/opr/test/basic_arith/erfinv.h
+++ b/src/opr/test/basic_arith/erfinv.h
@@ -28,7 +28,7 @@
  *
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/others.cpp b/src/opr/test/basic_arith/others.cpp
index f599da7d..951a2aa4 100644
--- a/src/opr/test/basic_arith/others.cpp
+++ b/src/opr/test/basic_arith/others.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/others.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/basic_arith/reduction.cpp b/src/opr/test/basic_arith/reduction.cpp
index 0e74f476..58dec096 100644
--- a/src/opr/test/basic_arith/reduction.cpp
+++ b/src/opr/test/basic_arith/reduction.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/basic_arith/reduction.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/blas.cpp b/src/opr/test/blas.cpp
index 4373e9a7..10ada0c9 100644
--- a/src/opr/test/blas.cpp
+++ b/src/opr/test/blas.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/blas.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/cond.cpp b/src/opr/test/cond.cpp
index ab8e6d1d..4ed560be 100644
--- a/src/opr/test/cond.cpp
+++ b/src/opr/test/cond.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/cond.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/adaptive_pooling.cpp b/src/opr/test/dnn/adaptive_pooling.cpp
index cf08f889..66712995 100644
--- a/src/opr/test/dnn/adaptive_pooling.cpp
+++ b/src/opr/test/dnn/adaptive_pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/adaptive_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/batch_norm.cpp b/src/opr/test/dnn/batch_norm.cpp
index 490c3adb..e3a28c35 100644
--- a/src/opr/test/dnn/batch_norm.cpp
+++ b/src/opr/test/dnn/batch_norm.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/batch_norm.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/convolution.cpp b/src/opr/test/dnn/convolution.cpp
index 461dd978..d7daaf44 100644
--- a/src/opr/test/dnn/convolution.cpp
+++ b/src/opr/test/dnn/convolution.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/convolution.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/deformable_ps_roi_pooling.cpp b/src/opr/test/dnn/deformable_ps_roi_pooling.cpp
index ec85da85..91aed2b3 100644
--- a/src/opr/test/dnn/deformable_ps_roi_pooling.cpp
+++ b/src/opr/test/dnn/deformable_ps_roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/deformable_ps_roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/images2neibs.cpp b/src/opr/test/dnn/images2neibs.cpp
index bd5cbb98..4d31f6a6 100644
--- a/src/opr/test/dnn/images2neibs.cpp
+++ b/src/opr/test/dnn/images2neibs.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/images2neibs.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/legacy_checker.h b/src/opr/test/dnn/legacy_checker.h
index 1b88fb87..1d8dfac2 100644
--- a/src/opr/test/dnn/legacy_checker.h
+++ b/src/opr/test/dnn/legacy_checker.h
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/legacy_checker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/local.cpp b/src/opr/test/dnn/local.cpp
index 6da1a6dd..b39598e9 100644
--- a/src/opr/test/dnn/local.cpp
+++ b/src/opr/test/dnn/local.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/local.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/lrn.cpp b/src/opr/test/dnn/lrn.cpp
index 5b572a62..7faae153 100644
--- a/src/opr/test/dnn/lrn.cpp
+++ b/src/opr/test/dnn/lrn.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/lrn.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/pooling.cpp b/src/opr/test/dnn/pooling.cpp
index 8defe15b..932060f4 100644
--- a/src/opr/test/dnn/pooling.cpp
+++ b/src/opr/test/dnn/pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/roi_align.cpp b/src/opr/test/dnn/roi_align.cpp
index 4a78fa89..a518a24c 100644
--- a/src/opr/test/dnn/roi_align.cpp
+++ b/src/opr/test/dnn/roi_align.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/roi_align.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/roi_pooling.cpp b/src/opr/test/dnn/roi_pooling.cpp
index 638a347f..96ed67c7 100644
--- a/src/opr/test/dnn/roi_pooling.cpp
+++ b/src/opr/test/dnn/roi_pooling.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/roi_pooling.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/dnn/tqt.cpp b/src/opr/test/dnn/tqt.cpp
index 977ea03e..25c7b3f0 100644
--- a/src/opr/test/dnn/tqt.cpp
+++ b/src/opr/test/dnn/tqt.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/dnn/tqt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/imgproc.cpp b/src/opr/test/imgproc.cpp
index 521d8fba..7038523b 100644
--- a/src/opr/test/imgproc.cpp
+++ b/src/opr/test/imgproc.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/imgproc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/indexing.cpp b/src/opr/test/indexing.cpp
index 751d3116..dbed6d79 100644
--- a/src/opr/test/indexing.cpp
+++ b/src/opr/test/indexing.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/indexing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/internal.cpp b/src/opr/test/internal.cpp
index cf052fcb..58e64624 100644
--- a/src/opr/test/internal.cpp
+++ b/src/opr/test/internal.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/internal.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/io.cpp b/src/opr/test/io.cpp
index e2a9f609..61782789 100644
--- a/src/opr/test/io.cpp
+++ b/src/opr/test/io.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/io.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/basic.cpp b/src/opr/test/loop/basic.cpp
index 9e600bfd..62962402 100644
--- a/src/opr/test/loop/basic.cpp
+++ b/src/opr/test/loop/basic.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/basic.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/elemwise_grad.cpp b/src/opr/test/loop/elemwise_grad.cpp
index 566ae222..a37229f6 100644
--- a/src/opr/test/loop/elemwise_grad.cpp
+++ b/src/opr/test/loop/elemwise_grad.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/elemwise_grad.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/grad_trans.cpp b/src/opr/test/loop/grad_trans.cpp
index 16edab74..527ac66d 100644
--- a/src/opr/test/loop/grad_trans.cpp
+++ b/src/opr/test/loop/grad_trans.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/grad_trans.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/record_internal.cpp b/src/opr/test/loop/record_internal.cpp
index 2e8d119e..5ecc9a04 100644
--- a/src/opr/test/loop/record_internal.cpp
+++ b/src/opr/test/loop/record_internal.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/record_internal.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/taylor.cpp b/src/opr/test/loop/taylor.cpp
index 283733c1..33c29274 100644
--- a/src/opr/test/loop/taylor.cpp
+++ b/src/opr/test/loop/taylor.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/taylor.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/loop/taylor.h b/src/opr/test/loop/taylor.h
index 7dadb7a9..64f961b7 100644
--- a/src/opr/test/loop/taylor.h
+++ b/src/opr/test/loop/taylor.h
@@ -2,7 +2,7 @@
  * \file src/opr/test/loop/taylor.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/megdnn_wrapper.cpp b/src/opr/test/megdnn_wrapper.cpp
index e6655fd8..7859bfe9 100644
--- a/src/opr/test/megdnn_wrapper.cpp
+++ b/src/opr/test/megdnn_wrapper.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/megdnn_wrapper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/misc.cpp b/src/opr/test/misc.cpp
index 083cdb16..e7541304 100644
--- a/src/opr/test/misc.cpp
+++ b/src/opr/test/misc.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/misc.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/muxing.cpp b/src/opr/test/muxing.cpp
index 5fec111b..04fca6d0 100644
--- a/src/opr/test/muxing.cpp
+++ b/src/opr/test/muxing.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/muxing.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/nn_int.cpp b/src/opr/test/nn_int.cpp
index 11dc985f..f274e27e 100644
--- a/src/opr/test/nn_int.cpp
+++ b/src/opr/test/nn_int.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/nn_int.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/rand.cpp b/src/opr/test/rand.cpp
index 04ab4298..c6bd18b6 100644
--- a/src/opr/test/rand.cpp
+++ b/src/opr/test/rand.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/rand.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/standalone/nms.cpp b/src/opr/test/standalone/nms.cpp
index f53b0593..6ea2d925 100644
--- a/src/opr/test/standalone/nms.cpp
+++ b/src/opr/test/standalone/nms.cpp
@@ -1,7 +1,7 @@
 /**
  * \file src/opr/test/standalone/nms.cpp
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  */
 
 #include "megbrain/opr/standalone/nms_opr.h"
diff --git a/src/opr/test/tensor_gen.cpp b/src/opr/test/tensor_gen.cpp
index 636d2adc..e7c55cdf 100644
--- a/src/opr/test/tensor_gen.cpp
+++ b/src/opr/test/tensor_gen.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/tensor_gen.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/tensor_manip.cpp b/src/opr/test/tensor_manip.cpp
index edf7271c..b2dd152c 100644
--- a/src/opr/test/tensor_manip.cpp
+++ b/src/opr/test/tensor_manip.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/tensor_manip.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/opr/test/utility.cpp b/src/opr/test/utility.cpp
index 357c3b0e..dbb0068b 100644
--- a/src/opr/test/utility.cpp
+++ b/src/opr/test/utility.cpp
@@ -2,7 +2,7 @@
  * \file src/opr/test/utility.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/cpu_dispatch_checker.cpp b/src/plugin/impl/cpu_dispatch_checker.cpp
index 4006ecd3..93b55db7 100644
--- a/src/plugin/impl/cpu_dispatch_checker.cpp
+++ b/src/plugin/impl/cpu_dispatch_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/cpu_dispatch_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/infkern_finder.cpp b/src/plugin/impl/infkern_finder.cpp
index 33c36287..0db47839 100644
--- a/src/plugin/impl/infkern_finder.cpp
+++ b/src/plugin/impl/infkern_finder.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/infkern_finder.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/num_range_checker.cpp b/src/plugin/impl/num_range_checker.cpp
index 238d3993..cdf92f92 100644
--- a/src/plugin/impl/num_range_checker.cpp
+++ b/src/plugin/impl/num_range_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/num_range_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/opr_footprint.cpp b/src/plugin/impl/opr_footprint.cpp
index 730db81d..2b691d87 100644
--- a/src/plugin/impl/opr_footprint.cpp
+++ b/src/plugin/impl/opr_footprint.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/opr_footprint.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/opr_io_dump.cpp b/src/plugin/impl/opr_io_dump.cpp
index ba01102e..936093c6 100644
--- a/src/plugin/impl/opr_io_dump.cpp
+++ b/src/plugin/impl/opr_io_dump.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/opr_io_dump.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/profiler.cpp b/src/plugin/impl/profiler.cpp
index ad04fe38..6c90731a 100644
--- a/src/plugin/impl/profiler.cpp
+++ b/src/plugin/impl/profiler.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/profiler.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/var_sanity_check.cpp b/src/plugin/impl/var_sanity_check.cpp
index 37d17ed3..87662c6e 100644
--- a/src/plugin/impl/var_sanity_check.cpp
+++ b/src/plugin/impl/var_sanity_check.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/var_sanity_check.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/impl/var_value_checker.cpp b/src/plugin/impl/var_value_checker.cpp
index c646df81..04ae4c7d 100644
--- a/src/plugin/impl/var_value_checker.cpp
+++ b/src/plugin/impl/var_value_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/impl/var_value_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/base.h b/src/plugin/include/megbrain/plugin/base.h
index b65e7ede..51d5e99e 100644
--- a/src/plugin/include/megbrain/plugin/base.h
+++ b/src/plugin/include/megbrain/plugin/base.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/base.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/cpu_dispatch_checker.h b/src/plugin/include/megbrain/plugin/cpu_dispatch_checker.h
index d1bfaa23..cacca348 100644
--- a/src/plugin/include/megbrain/plugin/cpu_dispatch_checker.h
+++ b/src/plugin/include/megbrain/plugin/cpu_dispatch_checker.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/cpu_dispatch_checker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/infkern_finder.h b/src/plugin/include/megbrain/plugin/infkern_finder.h
index d67db19f..1d61912e 100644
--- a/src/plugin/include/megbrain/plugin/infkern_finder.h
+++ b/src/plugin/include/megbrain/plugin/infkern_finder.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/infkern_finder.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/num_range_checker.h b/src/plugin/include/megbrain/plugin/num_range_checker.h
index 0fec7098..993ea378 100644
--- a/src/plugin/include/megbrain/plugin/num_range_checker.h
+++ b/src/plugin/include/megbrain/plugin/num_range_checker.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/num_range_checker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/opr_footprint.h b/src/plugin/include/megbrain/plugin/opr_footprint.h
index a0c6a555..31775a42 100644
--- a/src/plugin/include/megbrain/plugin/opr_footprint.h
+++ b/src/plugin/include/megbrain/plugin/opr_footprint.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/opr_footprint.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/opr_io_dump.h b/src/plugin/include/megbrain/plugin/opr_io_dump.h
index e8af2489..84bc55de 100644
--- a/src/plugin/include/megbrain/plugin/opr_io_dump.h
+++ b/src/plugin/include/megbrain/plugin/opr_io_dump.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/opr_io_dump.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/profiler.h b/src/plugin/include/megbrain/plugin/profiler.h
index d6294988..0cb1031b 100644
--- a/src/plugin/include/megbrain/plugin/profiler.h
+++ b/src/plugin/include/megbrain/plugin/profiler.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/profiler.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/var_sanity_check.h b/src/plugin/include/megbrain/plugin/var_sanity_check.h
index d57bc849..7f32cc8e 100644
--- a/src/plugin/include/megbrain/plugin/var_sanity_check.h
+++ b/src/plugin/include/megbrain/plugin/var_sanity_check.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/var_sanity_check.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/include/megbrain/plugin/var_value_checker.h b/src/plugin/include/megbrain/plugin/var_value_checker.h
index 0e2c9ba6..b9b356f7 100644
--- a/src/plugin/include/megbrain/plugin/var_value_checker.h
+++ b/src/plugin/include/megbrain/plugin/var_value_checker.h
@@ -2,7 +2,7 @@
  * \file src/plugin/include/megbrain/plugin/var_value_checker.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/cpu_dispatch_checker.cpp b/src/plugin/test/cpu_dispatch_checker.cpp
index 16d47f69..9065e1ea 100644
--- a/src/plugin/test/cpu_dispatch_checker.cpp
+++ b/src/plugin/test/cpu_dispatch_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/cpu_dispatch_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/infkern_finder.cpp b/src/plugin/test/infkern_finder.cpp
index c96fb34d..650a732c 100644
--- a/src/plugin/test/infkern_finder.cpp
+++ b/src/plugin/test/infkern_finder.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/infkern_finder.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/num_range_checker.cpp b/src/plugin/test/num_range_checker.cpp
index 06d1a064..8d41a051 100644
--- a/src/plugin/test/num_range_checker.cpp
+++ b/src/plugin/test/num_range_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/num_range_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/opr_footprint.cpp b/src/plugin/test/opr_footprint.cpp
index 4da38c0f..d4577acf 100644
--- a/src/plugin/test/opr_footprint.cpp
+++ b/src/plugin/test/opr_footprint.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/opr_footprint.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/opr_io_dump.cpp b/src/plugin/test/opr_io_dump.cpp
index 3b88a2cc..78d65e68 100644
--- a/src/plugin/test/opr_io_dump.cpp
+++ b/src/plugin/test/opr_io_dump.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/opr_io_dump.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/opr_io_dump_text_out.h b/src/plugin/test/opr_io_dump_text_out.h
index 16dd505b..edf6eb50 100644
--- a/src/plugin/test/opr_io_dump_text_out.h
+++ b/src/plugin/test/opr_io_dump_text_out.h
@@ -2,7 +2,7 @@
  * \file src/plugin/test/opr_io_dump_text_out.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/profiler.cpp b/src/plugin/test/profiler.cpp
index c069ac4d..77994347 100644
--- a/src/plugin/test/profiler.cpp
+++ b/src/plugin/test/profiler.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/profiler.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/var_sanity_check.cpp b/src/plugin/test/var_sanity_check.cpp
index 17b90aa7..dfb902dd 100644
--- a/src/plugin/test/var_sanity_check.cpp
+++ b/src/plugin/test/var_sanity_check.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/var_sanity_check.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/plugin/test/var_value_checker.cpp b/src/plugin/test/var_value_checker.cpp
index 3f42abeb..2690786f 100644
--- a/src/plugin/test/var_value_checker.cpp
+++ b/src/plugin/test/var_value_checker.cpp
@@ -2,7 +2,7 @@
  * \file src/plugin/test/var_value_checker.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/batched_device_value_loader.cpp b/src/serialization/impl/batched_device_value_loader.cpp
index 7302f855..4f266425 100644
--- a/src/serialization/impl/batched_device_value_loader.cpp
+++ b/src/serialization/impl/batched_device_value_loader.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/batched_device_value_loader.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/batched_device_value_loader.h b/src/serialization/impl/batched_device_value_loader.h
index b1b41f5e..f7ed0bc2 100644
--- a/src/serialization/impl/batched_device_value_loader.h
+++ b/src/serialization/impl/batched_device_value_loader.h
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/batched_device_value_loader.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/extern_c_opr.cpp b/src/serialization/impl/extern_c_opr.cpp
index b0c7661a..1dcc8b8c 100644
--- a/src/serialization/impl/extern_c_opr.cpp
+++ b/src/serialization/impl/extern_c_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/extern_c_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/extern_c_opr.sereg.h b/src/serialization/impl/extern_c_opr.sereg.h
index 5f545f0b..bff76aa3 100644
--- a/src/serialization/impl/extern_c_opr.sereg.h
+++ b/src/serialization/impl/extern_c_opr.sereg.h
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/extern_c_opr.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/file.cpp b/src/serialization/impl/file.cpp
index 8af30080..d7ad8a80 100644
--- a/src/serialization/impl/file.cpp
+++ b/src/serialization/impl/file.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/file.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/flatbuffer_converter.inl b/src/serialization/impl/flatbuffer_converter.inl
index e315c301..cb212d1e 100644
--- a/src/serialization/impl/flatbuffer_converter.inl
+++ b/src/serialization/impl/flatbuffer_converter.inl
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/flatbuffer_converter.inl
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/flatbuffers_helper.cpp b/src/serialization/impl/flatbuffers_helper.cpp
index 5941c86e..86008742 100644
--- a/src/serialization/impl/flatbuffers_helper.cpp
+++ b/src/serialization/impl/flatbuffers_helper.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/flatbuffers_helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/helper.cpp b/src/serialization/impl/helper.cpp
index b2aad17e..477de3a6 100644
--- a/src/serialization/impl/helper.cpp
+++ b/src/serialization/impl/helper.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/opr_load_dump.cpp b/src/serialization/impl/opr_load_dump.cpp
index e709197e..19aacb90 100644
--- a/src/serialization/impl/opr_load_dump.cpp
+++ b/src/serialization/impl/opr_load_dump.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/serialization/impl/opr_registry.cpp b/src/serialization/impl/opr_registry.cpp
index 9bd9fd08..d4f96717 100644
--- a/src/serialization/impl/opr_registry.cpp
+++ b/src/serialization/impl/opr_registry.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/opr_registry.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/opr_shallow_copy.cpp b/src/serialization/impl/opr_shallow_copy.cpp
index 921a69a3..a503e6a8 100644
--- a/src/serialization/impl/opr_shallow_copy.cpp
+++ b/src/serialization/impl/opr_shallow_copy.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/serialization/impl/sereg_caller.cpp b/src/serialization/impl/sereg_caller.cpp
index ceb6db52..dc61c1ba 100644
--- a/src/serialization/impl/sereg_caller.cpp
+++ b/src/serialization/impl/sereg_caller.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/sereg_caller.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/serializer.cpp b/src/serialization/impl/serializer.cpp
index 76d1495f..504abdfe 100644
--- a/src/serialization/impl/serializer.cpp
+++ b/src/serialization/impl/serializer.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/serializer.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/impl/serializer_oss.cpp b/src/serialization/impl/serializer_oss.cpp
index d303804a..1f2727c3 100644
--- a/src/serialization/impl/serializer_oss.cpp
+++ b/src/serialization/impl/serializer_oss.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/impl/serializer_oss.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/dump_format.h b/src/serialization/include/megbrain/serialization/dump_format.h
index 010b722f..1fe2c80e 100644
--- a/src/serialization/include/megbrain/serialization/dump_format.h
+++ b/src/serialization/include/megbrain/serialization/dump_format.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/dump_format.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/extern_c_opr.h b/src/serialization/include/megbrain/serialization/extern_c_opr.h
index 126e34ff..8ce9c7b6 100644
--- a/src/serialization/include/megbrain/serialization/extern_c_opr.h
+++ b/src/serialization/include/megbrain/serialization/extern_c_opr.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/extern_c_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/extern_c_opr_io.h b/src/serialization/include/megbrain/serialization/extern_c_opr_io.h
index 72e8287d..f6fb39ec 100644
--- a/src/serialization/include/megbrain/serialization/extern_c_opr_io.h
+++ b/src/serialization/include/megbrain/serialization/extern_c_opr_io.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/extern_c_opr_io.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/file.h b/src/serialization/include/megbrain/serialization/file.h
index a4d47021..7c7f1b6a 100644
--- a/src/serialization/include/megbrain/serialization/file.h
+++ b/src/serialization/include/megbrain/serialization/file.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/file.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/helper.h b/src/serialization/include/megbrain/serialization/helper.h
index 4c33ec53..1807525f 100644
--- a/src/serialization/include/megbrain/serialization/helper.h
+++ b/src/serialization/include/megbrain/serialization/helper.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/internal/flatbuffers_helper.h b/src/serialization/include/megbrain/serialization/internal/flatbuffers_helper.h
index 126c9753..0b83aca8 100644
--- a/src/serialization/include/megbrain/serialization/internal/flatbuffers_helper.h
+++ b/src/serialization/include/megbrain/serialization/internal/flatbuffers_helper.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/internal/flatbuffers_helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/load_dump_config.h b/src/serialization/include/megbrain/serialization/load_dump_config.h
index a4c67c7c..857c59d4 100644
--- a/src/serialization/include/megbrain/serialization/load_dump_config.h
+++ b/src/serialization/include/megbrain/serialization/load_dump_config.h
@@ -5,7 +5,7 @@
  *
  * \brief graph loader and dumper config
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 #pragma once
diff --git a/src/serialization/include/megbrain/serialization/opr_load_dump.h b/src/serialization/include/megbrain/serialization/opr_load_dump.h
index 84258ce2..ef107a44 100644
--- a/src/serialization/include/megbrain/serialization/opr_load_dump.h
+++ b/src/serialization/include/megbrain/serialization/opr_load_dump.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/serialization/include/megbrain/serialization/opr_registry.h b/src/serialization/include/megbrain/serialization/opr_registry.h
index f6960076..6946deb4 100644
--- a/src/serialization/include/megbrain/serialization/opr_registry.h
+++ b/src/serialization/include/megbrain/serialization/opr_registry.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/opr_registry.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/opr_shallow_copy.h b/src/serialization/include/megbrain/serialization/opr_shallow_copy.h
index 0b3e30b4..61291b4f 100644
--- a/src/serialization/include/megbrain/serialization/opr_shallow_copy.h
+++ b/src/serialization/include/megbrain/serialization/opr_shallow_copy.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2019 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/src/serialization/include/megbrain/serialization/sereg.h b/src/serialization/include/megbrain/serialization/sereg.h
index 395bb7e1..ab039f79 100644
--- a/src/serialization/include/megbrain/serialization/sereg.h
+++ b/src/serialization/include/megbrain/serialization/sereg.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/include/megbrain/serialization/serializer.h b/src/serialization/include/megbrain/serialization/serializer.h
index c30c8fa2..30706e2a 100644
--- a/src/serialization/include/megbrain/serialization/serializer.h
+++ b/src/serialization/include/megbrain/serialization/serializer.h
@@ -2,7 +2,7 @@
  * \file src/serialization/include/megbrain/serialization/serializer.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/test/extern_c_opr.cpp b/src/serialization/test/extern_c_opr.cpp
index 280755c1..98ffad2f 100644
--- a/src/serialization/test/extern_c_opr.cpp
+++ b/src/serialization/test/extern_c_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/test/extern_c_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/test/extern_c_opr_v23.cpp b/src/serialization/test/extern_c_opr_v23.cpp
index 339b0861..9100d541 100644
--- a/src/serialization/test/extern_c_opr_v23.cpp
+++ b/src/serialization/test/extern_c_opr_v23.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/test/extern_c_opr_v23.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/test/extern_c_opr_v23.h b/src/serialization/test/extern_c_opr_v23.h
index d7f7357e..06368453 100644
--- a/src/serialization/test/extern_c_opr_v23.h
+++ b/src/serialization/test/extern_c_opr_v23.h
@@ -2,7 +2,7 @@
  * \file src/serialization/test/extern_c_opr_v23.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/serialization/test/serializer_oss.cpp b/src/serialization/test/serializer_oss.cpp
index 90364db5..bdb82734 100644
--- a/src/serialization/test/serializer_oss.cpp
+++ b/src/serialization/test/serializer_oss.cpp
@@ -2,7 +2,7 @@
  * \file src/serialization/test/serializer_oss.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/impl/opr_replace.cpp b/src/tensorrt/impl/opr_replace.cpp
index bcd4d0d7..ad9d1e8a 100644
--- a/src/tensorrt/impl/opr_replace.cpp
+++ b/src/tensorrt/impl/opr_replace.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/impl/opr_replace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/impl/tensorrt_engine_cache.cpp b/src/tensorrt/impl/tensorrt_engine_cache.cpp
index 3ed917bf..f4ad2195 100644
--- a/src/tensorrt/impl/tensorrt_engine_cache.cpp
+++ b/src/tensorrt/impl/tensorrt_engine_cache.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/impl/tensorrt_engine_cache.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/impl/tensorrt_opr.cpp b/src/tensorrt/impl/tensorrt_opr.cpp
index 00b3cd7b..91f5cc3b 100644
--- a/src/tensorrt/impl/tensorrt_opr.cpp
+++ b/src/tensorrt/impl/tensorrt_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/impl/tensorrt_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/impl/tensorrt_opr.sereg.h b/src/tensorrt/impl/tensorrt_opr.sereg.h
index e5f97a9f..9bb72e4a 100644
--- a/src/tensorrt/impl/tensorrt_opr.sereg.h
+++ b/src/tensorrt/impl/tensorrt_opr.sereg.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/impl/tensorrt_opr.sereg.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/impl/tensorrt_runtime_opr.cpp b/src/tensorrt/impl/tensorrt_runtime_opr.cpp
index db746d7a..ffb5a511 100644
--- a/src/tensorrt/impl/tensorrt_runtime_opr.cpp
+++ b/src/tensorrt/impl/tensorrt_runtime_opr.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/impl/tensorrt_runtime_opr.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/include/megbrain/tensorrt/opr_replace.h b/src/tensorrt/include/megbrain/tensorrt/opr_replace.h
index f61a4e06..8d4ba2e7 100644
--- a/src/tensorrt/include/megbrain/tensorrt/opr_replace.h
+++ b/src/tensorrt/include/megbrain/tensorrt/opr_replace.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/include/megbrain/tensorrt/opr_replace.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/include/megbrain/tensorrt/tensorrt_engine_cache.h b/src/tensorrt/include/megbrain/tensorrt/tensorrt_engine_cache.h
index 4f927ecb..fb0a2f62 100644
--- a/src/tensorrt/include/megbrain/tensorrt/tensorrt_engine_cache.h
+++ b/src/tensorrt/include/megbrain/tensorrt/tensorrt_engine_cache.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/include/megbrain/tensorrt/tensorrt_engine_cache.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/include/megbrain/tensorrt/tensorrt_opr.h b/src/tensorrt/include/megbrain/tensorrt/tensorrt_opr.h
index a671e6ae..04f0086a 100644
--- a/src/tensorrt/include/megbrain/tensorrt/tensorrt_opr.h
+++ b/src/tensorrt/include/megbrain/tensorrt/tensorrt_opr.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/include/megbrain/tensorrt/tensorrt_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/include/megbrain/tensorrt/tensorrt_runtime_opr.h b/src/tensorrt/include/megbrain/tensorrt/tensorrt_runtime_opr.h
index bf66487a..fbb241af 100644
--- a/src/tensorrt/include/megbrain/tensorrt/tensorrt_runtime_opr.h
+++ b/src/tensorrt/include/megbrain/tensorrt/tensorrt_runtime_opr.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/include/megbrain/tensorrt/tensorrt_runtime_opr.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/helper.cpp b/src/tensorrt/test/helper.cpp
index 6c47780b..9565ce8d 100644
--- a/src/tensorrt/test/helper.cpp
+++ b/src/tensorrt/test/helper.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/helper.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/helper.h b/src/tensorrt/test/helper.h
index 25dc34e7..08898d01 100644
--- a/src/tensorrt/test/helper.h
+++ b/src/tensorrt/test/helper.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/helper.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/make_trt_net.cpp b/src/tensorrt/test/make_trt_net.cpp
index 0d33314f..5b72916c 100644
--- a/src/tensorrt/test/make_trt_net.cpp
+++ b/src/tensorrt/test/make_trt_net.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/make_trt_net.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/make_trt_net.h b/src/tensorrt/test/make_trt_net.h
index 8b90b485..672e9d81 100644
--- a/src/tensorrt/test/make_trt_net.h
+++ b/src/tensorrt/test/make_trt_net.h
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/make_trt_net.h
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/opr_replace.cpp b/src/tensorrt/test/opr_replace.cpp
index fba3fbd5..52189347 100644
--- a/src/tensorrt/test/opr_replace.cpp
+++ b/src/tensorrt/test/opr_replace.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/opr_replace.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/tensorrt.cpp b/src/tensorrt/test/tensorrt.cpp
index 423b0bdb..c4797601 100644
--- a/src/tensorrt/test/tensorrt.cpp
+++ b/src/tensorrt/test/tensorrt.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/tensorrt.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/src/tensorrt/test/tensorrt_runtime.cpp b/src/tensorrt/test/tensorrt_runtime.cpp
index 242981d4..debd27bb 100644
--- a/src/tensorrt/test/tensorrt_runtime.cpp
+++ b/src/tensorrt/test/tensorrt_runtime.cpp
@@ -2,7 +2,7 @@
  * \file src/tensorrt/test/tensorrt_runtime.cpp
  * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
  *
- * Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
diff --git a/test/src/autocheck.cpp b/test/src/autocheck.cpp
index 674e4da6..2bb678af 100644
--- a/test/src/autocheck.cpp
+++ b/test/src/autocheck.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/helper.cpp b/test/src/helper.cpp
index fe111bca..82f63681 100644
--- a/test/src/helper.cpp
+++ b/test/src/helper.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/host_static_calc.cpp b/test/src/host_static_calc.cpp
index 9e2acaee..081e2bf3 100644
--- a/test/src/host_static_calc.cpp
+++ b/test/src/host_static_calc.cpp
@@ -5,7 +5,7 @@
  *
  * \brief static calculating on host to check opr correctness
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/include/megbrain/test/autocheck.h b/test/src/include/megbrain/test/autocheck.h
index 4c17d0a9..d3d8272b 100644
--- a/test/src/include/megbrain/test/autocheck.h
+++ b/test/src/include/megbrain/test/autocheck.h
@@ -5,7 +5,7 @@
  *
  * \brief automatically check operator and grad
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/include/megbrain/test/helper.h b/test/src/include/megbrain/test/helper.h
index b9b34745..e122a761 100644
--- a/test/src/include/megbrain/test/helper.h
+++ b/test/src/include/megbrain/test/helper.h
@@ -5,7 +5,7 @@
  *
  * \brief helper functions for testing
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/include/megbrain/test/host_static_calc.h b/test/src/include/megbrain/test/host_static_calc.h
index f32deef6..66b91621 100644
--- a/test/src/include/megbrain/test/host_static_calc.h
+++ b/test/src/include/megbrain/test/host_static_calc.h
@@ -5,7 +5,7 @@
  *
  * \brief static calculating on host to check opr correctness
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/include/megbrain/test/megdnn_helper.h b/test/src/include/megbrain/test/megdnn_helper.h
index e613dc44..48b9d4ef 100644
--- a/test/src/include/megbrain/test/megdnn_helper.h
+++ b/test/src/include/megbrain/test/megdnn_helper.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/include/megbrain/test/numerical_diff.h b/test/src/include/megbrain/test/numerical_diff.h
index 82000b61..62b2910c 100644
--- a/test/src/include/megbrain/test/numerical_diff.h
+++ b/test/src/include/megbrain/test/numerical_diff.h
@@ -5,7 +5,7 @@
  *
  * \brief numerical differentiation
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/main.cpp b/test/src/main.cpp
index be296b14..d782efc1 100644
--- a/test/src/main.cpp
+++ b/test/src/main.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/megdnn_helper.cpp b/test/src/megdnn_helper.cpp
index 7b940686..86ebefe1 100644
--- a/test/src/megdnn_helper.cpp
+++ b/test/src/megdnn_helper.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/numerical_diff.cpp b/test/src/numerical_diff.cpp
index fe369609..7d248bd7 100644
--- a/test/src/numerical_diff.cpp
+++ b/test/src/numerical_diff.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/rng_seed.cpp b/test/src/rng_seed.cpp
index 4462eea9..f9ccd6a3 100644
--- a/test/src/rng_seed.cpp
+++ b/test/src/rng_seed.cpp
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/test/src/rng_seed.h b/test/src/rng_seed.h
index 3dc42d58..6157d76f 100644
--- a/test/src/rng_seed.h
+++ b/test/src/rng_seed.h
@@ -3,7 +3,7 @@
  *
  * This file is part of MegBrain, a deep learning framework developed by Megvii.
  *
- * \copyright Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+ * \copyright Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
  *
  */
 
diff --git a/tools/gen_header_for_bin_reduce.py b/tools/gen_header_for_bin_reduce.py
index 83e7a350..d084f87e 100755
--- a/tools/gen_header_for_bin_reduce.py
+++ b/tools/gen_header_for_bin_reduce.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 # MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 #
-# Copyright (c) 2014-2020 Megvii Inc. All rights reserved.
+# Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an