Update copyright years.

284 files changed, 284 insertions, 284 deletions

diff --git a/libstdc++-v3/include/ext/algorithm b/libstdc++-v3/include/ext/algorithm
index e7106fd..6dce623 100644
--- a/libstdc++-v3/include/ext/algorithm
+++ b/libstdc++-v3/include/ext/algorithm
@@ -1,6 +1,6 @@
 // Algorithm extensions -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/aligned_buffer.h b/libstdc++-v3/include/ext/aligned_buffer.h
index 667a9c0..8e3d8d7 100644
--- a/libstdc++-v3/include/ext/aligned_buffer.h
+++ b/libstdc++-v3/include/ext/aligned_buffer.h
@@ -1,6 +1,6 @@
 // Aligned memory buffer -*- C++ -*-
 
-// Copyright (C) 2013-2020 Free Software Foundation, Inc.
+// Copyright (C) 2013-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/alloc_traits.h b/libstdc++-v3/include/ext/alloc_traits.h
index 3bbef9e..df0561d 100644
--- a/libstdc++-v3/include/ext/alloc_traits.h
+++ b/libstdc++-v3/include/ext/alloc_traits.h
@@ -1,6 +1,6 @@
 // Allocator traits -*- C++ -*-
 
-// Copyright (C) 2011-2020 Free Software Foundation, Inc.
+// Copyright (C) 2011-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/atomicity.h b/libstdc++-v3/include/ext/atomicity.h
index 2d3e5fb..1dbf6c3 100644
--- a/libstdc++-v3/include/ext/atomicity.h
+++ b/libstdc++-v3/include/ext/atomicity.h
@@ -1,6 +1,6 @@
 // Support for atomic operations -*- C++ -*-
 
-// Copyright (C) 2004-2020 Free Software Foundation, Inc.
+// Copyright (C) 2004-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/bitmap_allocator.h b/libstdc++-v3/include/ext/bitmap_allocator.h
index edddf32..cc80593 100644
--- a/libstdc++-v3/include/ext/bitmap_allocator.h
+++ b/libstdc++-v3/include/ext/bitmap_allocator.h
@@ -1,6 +1,6 @@
 // Bitmap Allocator. -*- C++ -*-
 
-// Copyright (C) 2004-2020 Free Software Foundation, Inc.
+// Copyright (C) 2004-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/cast.h b/libstdc++-v3/include/ext/cast.h
index 4c83368..9a29169 100644
--- a/libstdc++-v3/include/ext/cast.h
+++ b/libstdc++-v3/include/ext/cast.h
@@ -1,6 +1,6 @@
 // <cast.h> -*- C++ -*-
 
-// Copyright (C) 2008-2020 Free Software Foundation, Inc.
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/cmath b/libstdc++-v3/include/ext/cmath
index 09c6e44..842abe9 100644
--- a/libstdc++-v3/include/ext/cmath
+++ b/libstdc++-v3/include/ext/cmath
@@ -1,6 +1,6 @@
 // Math extensions -*- C++ -*-
 
-// Copyright (C) 2013-2020 Free Software Foundation, Inc.
+// Copyright (C) 2013-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/codecvt_specializations.h b/libstdc++-v3/include/ext/codecvt_specializations.h
index 7401e2e..f825a03 100644
--- a/libstdc++-v3/include/ext/codecvt_specializations.h
+++ b/libstdc++-v3/include/ext/codecvt_specializations.h
@@ -1,6 +1,6 @@
 // Locale support (codecvt) -*- C++ -*-
 
-// Copyright (C) 2000-2020 Free Software Foundation, Inc.
+// Copyright (C) 2000-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/concurrence.h b/libstdc++-v3/include/ext/concurrence.h
index db3d9e7..ff37657 100644
--- a/libstdc++-v3/include/ext/concurrence.h
+++ b/libstdc++-v3/include/ext/concurrence.h
@@ -1,6 +1,6 @@
 // Support for concurrent programing -*- C++ -*-
 
-// Copyright (C) 2003-2020 Free Software Foundation, Inc.
+// Copyright (C) 2003-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/debug_allocator.h b/libstdc++-v3/include/ext/debug_allocator.h
index 8b39416..2269342 100644
--- a/libstdc++-v3/include/ext/debug_allocator.h
+++ b/libstdc++-v3/include/ext/debug_allocator.h
@@ -1,6 +1,6 @@
 // Allocators -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/enc_filebuf.h b/libstdc++-v3/include/ext/enc_filebuf.h
index 8de1a28..c93253e 100644
--- a/libstdc++-v3/include/ext/enc_filebuf.h
+++ b/libstdc++-v3/include/ext/enc_filebuf.h
@@ -1,6 +1,6 @@
 // filebuf with encoding state type -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/extptr_allocator.h b/libstdc++-v3/include/ext/extptr_allocator.h
index 850ca28..7d8aaac 100644
--- a/libstdc++-v3/include/ext/extptr_allocator.h
+++ b/libstdc++-v3/include/ext/extptr_allocator.h
@@ -1,6 +1,6 @@
 // <extptr_allocator.h> -*- C++ -*-
 
-// Copyright (C) 2008-2020 Free Software Foundation, Inc.
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/functional b/libstdc++-v3/include/ext/functional
index 4f50a60..5609462 100644
--- a/libstdc++-v3/include/ext/functional
+++ b/libstdc++-v3/include/ext/functional
@@ -1,6 +1,6 @@
 // Functional extensions -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/iterator b/libstdc++-v3/include/ext/iterator
index acfb353..e5296c9 100644
--- a/libstdc++-v3/include/ext/iterator
+++ b/libstdc++-v3/include/ext/iterator
@@ -1,6 +1,6 @@
 // HP/SGI iterator extensions -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/malloc_allocator.h b/libstdc++-v3/include/ext/malloc_allocator.h
index dd45470..3112f7f 100644
--- a/libstdc++-v3/include/ext/malloc_allocator.h
+++ b/libstdc++-v3/include/ext/malloc_allocator.h
@@ -1,6 +1,6 @@
 // Allocator that wraps "C" malloc -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/memory b/libstdc++-v3/include/ext/memory
index f590fd9..14c9414 100644
--- a/libstdc++-v3/include/ext/memory
+++ b/libstdc++-v3/include/ext/memory
@@ -1,6 +1,6 @@
 // Memory extensions -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/mt_allocator.h b/libstdc++-v3/include/ext/mt_allocator.h
index 0857390..596c1e3 100644
--- a/libstdc++-v3/include/ext/mt_allocator.h
+++ b/libstdc++-v3/include/ext/mt_allocator.h
@@ -1,6 +1,6 @@
 // MT-optimized allocator -*- C++ -*-
 
-// Copyright (C) 2003-2020 Free Software Foundation, Inc.
+// Copyright (C) 2003-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/new_allocator.h b/libstdc++-v3/include/ext/new_allocator.h
index a43c8d9..9e624ba 100644
--- a/libstdc++-v3/include/ext/new_allocator.h
+++ b/libstdc++-v3/include/ext/new_allocator.h
@@ -1,6 +1,6 @@
 // Allocator that wraps operator new -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/numeric b/libstdc++-v3/include/ext/numeric
index f437eca..2b14ed7 100644
--- a/libstdc++-v3/include/ext/numeric
+++ b/libstdc++-v3/include/ext/numeric
@@ -1,6 +1,6 @@
 // Numeric extensions -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/numeric_traits.h b/libstdc++-v3/include/ext/numeric_traits.h
index 78a03e3..a81fa6f 100644
--- a/libstdc++-v3/include/ext/numeric_traits.h
+++ b/libstdc++-v3/include/ext/numeric_traits.h
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2007-2020 Free Software Foundation, Inc.
+// Copyright (C) 2007-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/assoc_container.hpp b/libstdc++-v3/include/ext/pb_ds/assoc_container.hpp
index f497cfe..2dbf6d3 100644
--- a/libstdc++-v3/include/ext/pb_ds/assoc_container.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/assoc_container.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp
index 32dcb6e..53b7a25 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp
index e44c6aa..9139f6b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp
index a0d0956..3473270 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
index dd8bcf8..2dc37ae 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp
index 46505de..be70540 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp
index 47c90a3..4f74230 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
index 3942da0..6f62002 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp
index 10dfbe5..b0dbc83 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp
index cf97211..87df174 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp
index eb2f4fd..05a0e54 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp
index 0883a43..dfbe181 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/r_erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/r_erase_fn_imps.hpp
index 8835f11..4281061 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/r_erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/r_erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp
index 1f18243..9c92c4d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp
index d08288f..38dac07 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/traits.hpp
index 37fbc5b..c94102d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp
index 0faafbc..a75cb1e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/const_iterator.hpp
index 542665c..9419e25 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp
index 0cbf295..3381af1 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp
index 0393c11..ef0f55b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_cmp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_cmp.hpp
index 2972435..318239f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_cmp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_cmp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_pred.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_pred.hpp
index 3ed37b1..bda206c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_pred.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/entry_pred.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp
index 7876c19..12c8372 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp
index 89b843b..a703f21 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp
index 11ac77f..4cf947c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
index f89818c..99ed174 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp
index b2a3e0f..42dd8a3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp
index 9f7517f..70b1d33 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp
index 2d7fba6..2eb228c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/resize_policy.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/resize_policy.hpp
index ebdc6bc..87f821a 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/resize_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/resize_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp
index 1c5d1d6..27e32aa 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp
index 3ba53ff..314cc21 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/binomial_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/binomial_heap_.hpp
index 00ade99..e367083 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/binomial_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/binomial_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/constructors_destructor_fn_imps.hpp
index a1a18c5..2edd856 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/debug_fn_imps.hpp
index 28e58be..43bd353 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp
index 53bf685..d164c55 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/constructors_destructor_fn_imps.hpp
index 2e1f954..8cf0e6f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/debug_fn_imps.hpp
index fe84475..a66c342 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/erase_fn_imps.hpp
index d0cc08e..4aa2c3d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/find_fn_imps.hpp
index ea05c3c..ea6fb0e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/insert_fn_imps.hpp
index 764e5cd..302901f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/split_join_fn_imps.hpp
index 5971312..660f802 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/binomial_heap_base_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp
index b7cb0b9..c30bb38 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/null_node_metadata.hpp b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/null_node_metadata.hpp
index e5a2fa4..f355f8e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/null_node_metadata.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/null_node_metadata.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/traits.hpp
index dcb014f..06cb724 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/branch_policy/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
index a46b23f..aa5c94b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cmp_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cmp_fn_imps.hpp
index 4a634d0..4f72a20 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cmp_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cmp_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cond_key_dtor_entry_dealtor.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cond_key_dtor_entry_dealtor.hpp
index 29b6567..69a1bba 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cond_key_dtor_entry_dealtor.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/cond_key_dtor_entry_dealtor.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp
index 7d4f7f2..d72c440 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
index c2bafc1..53d8a45 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
index 52b02da..4a1d4db 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_fn_imps.hpp
index f7530d9..61f9cd7 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_no_store_hash_fn_imps.hpp
index a177fd9..8b7e8a2 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_store_hash_fn_imps.hpp
index 6d979e8..1eead38 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/debug_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp
index 89df665..f59772d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_fn_imps.hpp
index 62fc89b..b6cbbfb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp
index b3ceffb..d824bc8 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp
index acef0e4..85e5cbe 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_fn_imps.hpp
index d146bf7..e162b70 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_store_hash_fn_imps.hpp
index 9289570..a6ce184 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/find_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp
index 3e15ca72..0e2c6df 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_fn_imps.hpp
index 8c82248..4f873ff 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
index 0727d5c..191adfe 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_store_hash_fn_imps.hpp
index ea2b74f..80ef2aa 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/insert_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/iterators_fn_imps.hpp
index 3d5052b..c4b913b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/policy_access_fn_imps.hpp
index d283a99..3cf1c8d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_fn_imps.hpp
index 22a3de7..a4999f4 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp
index 5a274ee..f6ef5bc 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp
index f2190d0..888e89d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp
index 584682f..656a250 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/trace_fn_imps.hpp
index b603c49..0bdb8e6 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/cond_dealtor.hpp b/libstdc++-v3/include/ext/pb_ds/detail/cond_dealtor.hpp
index aaf8ee8..3782e3b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/cond_dealtor.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/cond_dealtor.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/container_base_dispatch.hpp b/libstdc++-v3/include/ext/pb_ds/detail/container_base_dispatch.hpp
index 95424e3..a003750 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/container_base_dispatch.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/container_base_dispatch.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/debug_map_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/debug_map_base.hpp
index 4e21f08..84419b3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/debug_map_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/debug_map_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/eq_by_less.hpp b/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/eq_by_less.hpp
index 9f18e44..95e7ade 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/eq_by_less.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/eq_by_less.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp
index 96eb76b..99ac777 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/eq_fn/hash_eq_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp
index 1aae7c5..b53d494 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
index 4275be9..8023564 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
index a15047b..ed3c8e2 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/constructor_destructor_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp
index a52707c..b0da514 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_no_store_hash_fn_imps.hpp
index 6188fd5..acd6bd7 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_store_hash_fn_imps.hpp
index b416aa0..e709888 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/debug_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp
index cdc6f95..1791d86 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp
index 463310c..10d029e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp
index 037b61a..839cbee 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp
index b054c73..3a27dad 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_no_store_hash_fn_imps.hpp
index 0246442..38f3ddc 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_store_hash_fn_imps.hpp
index dd485ff..aad0e49 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/find_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp
index cb88ea9..77d46b6 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp
index b477259..cec7466 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp
index c55c4d5..ab91a98 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp
index bec15d7..b2e645e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_store_hash_fn_imps.hpp
index d8185b6..f2087f9 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/insert_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp
index 8c1a052..3a8e272 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/iterator_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp
index 2f1e926..5b50cb1 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp
index 55ecb86..d7cba04 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_no_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_no_store_hash_fn_imps.hpp
index d858eb6..ebeeae3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_no_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_no_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_store_hash_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_store_hash_fn_imps.hpp
index 96e3e5a..3591d3f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_store_hash_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/resize_store_hash_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp
index d6071af..d1c4b63 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/gp_hash_table_map_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp
index 1064df2..ef5c637 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp
index 89c0cb7..6c80455 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp
index 93cd4b5..c52ad1c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp
index 2b8ce31..67f5c98 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp
index db0b383..520ecb0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp
index 2dbe9c5..c19b444 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp
index ab0fde4..e1fa09b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp
index c51138f..8f4e073 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp
index 5a1f2ff..f3b50cf 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp
index 39f5306..81037bb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp
index 0a2fd04..6f8bedf 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp
index b314af0..c26f880 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp
index bf0317b..c92b5ab 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp
index 937887b..fe16df9 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp
index 895bc8c..4848c90 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp
index 8d83a86..98c5996 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp
index c0b13f2..7dee7f2 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp
index dc9ae44..b1b1a81 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp
index 06d69ee..23b46fb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp
index 7859103..011639c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
index afe0c4a..91e27d3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp
index b0be512..ae198dd 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp
index 62e3dc7..687cdc6 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp
index bcf69f0..fc04e16 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp
index a1e2c0c..6c83d64 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/constructor_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/constructor_destructor_fn_imps.hpp
index 0e94d6f..bdc3620 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/constructor_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/constructor_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/debug_fn_imps.hpp
index a799f39..db93cc2 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/entry_metadata_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/entry_metadata_base.hpp
index 249871f..a47647f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/entry_metadata_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/entry_metadata_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/erase_fn_imps.hpp
index 5fa8836..2a91d81 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/find_fn_imps.hpp
index 763cb76..c0a46f6 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp
index 9720142..1e61f2f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp
index 04c17ef..0d37ceb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp
index 81d8e8a..820fcf7 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp
index 2cadfcf..d9e2370 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/trace_fn_imps.hpp
index 0737bf7..aa1b471 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/lu_counter_metadata.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/lu_counter_metadata.hpp
index 6e930e4..d813a22 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/lu_counter_metadata.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/lu_counter_metadata.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/sample_update_policy.hpp b/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/sample_update_policy.hpp
index 8d533a5..a51a097 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/sample_update_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/list_update_policy/sample_update_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp
index 14786b5..1b5a8bb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp
index c9b1e20..e66a7f3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp
index edd85ff..e07b721 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp
index 366113d..7f43f0a 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp
index 590a9ef..0fb2ce9 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp
index 35ca994..57f7ce0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp
index 4e97f4a..a780d3b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp
index 79ca5b3..7752205 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/policy_access_fn_imps.hpp
index 560b71f..fb910c5 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp
index 2b941a1..2bb310d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/traits.hpp
index cf30046..6352192 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/ov_tree_map_/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/constructors_destructor_fn_imps.hpp
index 4c1cbee..67d85f9 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp
index b1b7ac2..ccb93f9 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp
index 95ee2d6..74471c0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/find_fn_imps.hpp
index 67bab20..7536c2b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp
index 64f0f73..b2e2864 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/pairing_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/pairing_heap_.hpp
index 72684b5..a3943f2 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/pairing_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/pairing_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/split_join_fn_imps.hpp
index 9cc69e7..4d5e40f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pairing_heap_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp
index 0d5802b..4776663 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
  // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp
index 3c3f8f5..9f08f25 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp
index e989518..3e4c421 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp
index 28c97d7..91425c3 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp
index 972a750..79b65cd 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp
index 8397108..ff2e236 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp
index b5f5d94..cde217c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp
index 68a7e23..1352ed5 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_base.hpp
index e77ce21..5529092 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/pat_trie_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp
index f326abd..c8fcc34 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp
index f16d995..231c10e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp
index 66f625d..f56ccb0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp
index 0566bec..952f2a8 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_access_traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_access_traits.hpp
index 50bfbd5..78d1a89 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_access_traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_access_traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp
index ac513d1..dbdc7ad 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/traits.hpp
index b649145..3efd1bb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp
index f06c74e..62d6ecd 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp b/libstdc++-v3/include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp
index 1dc3f86..aaca457 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp
index adb32ca..b3e41f1 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp
index c6391f6..434cc10 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp
index f293103..437f13f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/find_fn_imps.hpp
index e68f8e7..d34a367 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp
index 9da79d4..daf9a39 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp
index e7eb91c..447d810 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/node.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/node.hpp
index de2d92a..edf95f6 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/node.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/node.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp
index cf7f527..c9aae8e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp
index 199e98a..79251fb 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/traits.hpp
index ff04e6c..1b7a123 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rb_tree_map_/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp
index e596f91..bd3fabc 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp
index 1222512..b0aee96 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
index 2ba79e5..1639160 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
index 716ec76..94cff11 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp
index d264414..d4175a7 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
index 37092a2..a496905 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp
index 281475c..c1376d0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp
index 518dc9e..768b747 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
index a02910b..6642f36 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp
index 0dac05a..91f167c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_imp.hpp
index 57c3844..ed1aaf8 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp
index 23f2937..0692522 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp
index 1f68eaa..71b6733 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_standard_resize_policy_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_standard_resize_policy_imp.hpp
index c9dbf26..bd80cc1 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_standard_resize_policy_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_standard_resize_policy_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_policy.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_policy.hpp
index a3ce717..d437faa 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_trigger.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_trigger.hpp
index 43be664..bf5a91f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_trigger.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_resize_trigger.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp
index 4acbcfd..77d4b26 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/constructors_destructor_fn_imps.hpp
index 8040845..7d47058 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp
index ff2ac36..020ed75 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp
index 61b124f..d252332 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp
index 37b186b..8a21780 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/info_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/info_fn_imps.hpp
index 24f8b08..bb00d3d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/info_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/info_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp
index 7901e8c..4dc19a1 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/node.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/node.hpp
index 5c7b5d4..045de64 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/node.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/node.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp
index bcbbabc..e19a964 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_tree_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_tree_.hpp
index e100677..a37c291 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_tree_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/splay_tree_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/split_join_fn_imps.hpp
index c7ac40e..382419c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/traits.hpp
index 57d8551..4ff8228 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/splay_tree_/traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp b/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp
index d6dc838..1978e9f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/constructors_destructor_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/constructors_destructor_fn_imps.hpp
index 88b9728..d98b135 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/constructors_destructor_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/constructors_destructor_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp
index 8dc3883..c6436c5 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp
index ac7cca2..4af0a7f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp
index a057961..c84903a 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp
index 2c30916..a132b10 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp
index c35dd38..2ef98e7 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/thin_heap_.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/thin_heap_.hpp
index e13731a..67741de 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/thin_heap_.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/thin_heap_.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/trace_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/trace_fn_imps.hpp
index 06b5e4f..b74f810 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/trace_fn_imps.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/thin_heap_/trace_fn_imps.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp
index f77a6226..289f53c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
index a31d598..283e4ab 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/order_statistics_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/sample_tree_node_update.hpp b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/sample_tree_node_update.hpp
index 2d03c09..ebed73c 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/sample_tree_node_update.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/tree_policy/sample_tree_node_update.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp
index 024db1f..cf03158 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp
index f446af4..cbde92b 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/order_statistics_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/order_statistics_imp.hpp
index c4c5070..f74097d 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/order_statistics_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/order_statistics_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/prefix_search_node_update_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/prefix_search_node_update_imp.hpp
index 2475e25..7c3f43f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/prefix_search_node_update_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/prefix_search_node_update_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_access_traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_access_traits.hpp
index 2e3663e..6ff0043 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_access_traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_access_traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_node_update.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_node_update.hpp
index 1469e3e..06ea474 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_node_update.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/sample_trie_node_update.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_policy_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_policy_base.hpp
index b83ff2e..d8446f0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_policy_base.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_policy_base.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_string_access_traits_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_string_access_traits_imp.hpp
index 8fb1fd2..82470e5 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_string_access_traits_imp.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/trie_string_access_traits_imp.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/type_utils.hpp b/libstdc++-v3/include/ext/pb_ds/detail/type_utils.hpp
index ab1020e..9acdbd0 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/type_utils.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/type_utils.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/types_traits.hpp b/libstdc++-v3/include/ext/pb_ds/detail/types_traits.hpp
index 4e91ed1..6f94c38 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/types_traits.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/types_traits.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp
index f3f9b3f..9d5ec7f 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp
index 88dd89a..09c6ff29 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp
index be40df6..f29dfc5 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp
index 7177eab..7710a1e 100644
--- a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/exception.hpp b/libstdc++-v3/include/ext/pb_ds/exception.hpp
index b801392..eb61204 100644
--- a/libstdc++-v3/include/ext/pb_ds/exception.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/exception.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/hash_policy.hpp b/libstdc++-v3/include/ext/pb_ds/hash_policy.hpp
index c1181a7..4f1f1d7 100644
--- a/libstdc++-v3/include/ext/pb_ds/hash_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/hash_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/list_update_policy.hpp b/libstdc++-v3/include/ext/pb_ds/list_update_policy.hpp
index 73f6a43..bca695a 100644
--- a/libstdc++-v3/include/ext/pb_ds/list_update_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/list_update_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/priority_queue.hpp b/libstdc++-v3/include/ext/pb_ds/priority_queue.hpp
index d2010fc..dee140a 100644
--- a/libstdc++-v3/include/ext/pb_ds/priority_queue.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/priority_queue.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/tag_and_trait.hpp b/libstdc++-v3/include/ext/pb_ds/tag_and_trait.hpp
index 46dc114..4156302 100644
--- a/libstdc++-v3/include/ext/pb_ds/tag_and_trait.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/tag_and_trait.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/tree_policy.hpp b/libstdc++-v3/include/ext/pb_ds/tree_policy.hpp
index e76b56a..13ff0a1 100644
--- a/libstdc++-v3/include/ext/pb_ds/tree_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/tree_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pb_ds/trie_policy.hpp b/libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
index 9c0ea38..d5ba0b6 100644
--- a/libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
+++ b/libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/pod_char_traits.h b/libstdc++-v3/include/ext/pod_char_traits.h
index fc68a72..6ccc174 100644
--- a/libstdc++-v3/include/ext/pod_char_traits.h
+++ b/libstdc++-v3/include/ext/pod_char_traits.h
@@ -1,6 +1,6 @@
 // POD character, std::char_traits specialization -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/pointer.h b/libstdc++-v3/include/ext/pointer.h
index a0ade4a..6bed55f 100644
--- a/libstdc++-v3/include/ext/pointer.h
+++ b/libstdc++-v3/include/ext/pointer.h
@@ -1,6 +1,6 @@
 // Custom pointer adapter and sample storage policies
 
-// Copyright (C) 2008-2020 Free Software Foundation, Inc.
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/pool_allocator.h b/libstdc++-v3/include/ext/pool_allocator.h
index c247c40..8522197 100644
--- a/libstdc++-v3/include/ext/pool_allocator.h
+++ b/libstdc++-v3/include/ext/pool_allocator.h
@@ -1,6 +1,6 @@
 // Allocators -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/random b/libstdc++-v3/include/ext/random
index 25d7250..6404077 100644
--- a/libstdc++-v3/include/ext/random
+++ b/libstdc++-v3/include/ext/random
@@ -1,6 +1,6 @@
 // Random number extensions -*- C++ -*-
 
-// Copyright (C) 2012-2020 Free Software Foundation, Inc.
+// Copyright (C) 2012-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/random.tcc b/libstdc++-v3/include/ext/random.tcc
index 3b91478..9bdd97b 100644
--- a/libstdc++-v3/include/ext/random.tcc
+++ b/libstdc++-v3/include/ext/random.tcc
@@ -1,6 +1,6 @@
 // Random number extensions -*- C++ -*-
 
-// Copyright (C) 2012-2020 Free Software Foundation, Inc.
+// Copyright (C) 2012-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/rb_tree b/libstdc++-v3/include/ext/rb_tree
index 036e959b..44bf8d9 100644
--- a/libstdc++-v3/include/ext/rb_tree
+++ b/libstdc++-v3/include/ext/rb_tree
@@ -1,6 +1,6 @@
 // rb_tree extension -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/rc_string_base.h b/libstdc++-v3/include/ext/rc_string_base.h
index 9c89374..819f52d 100644
--- a/libstdc++-v3/include/ext/rc_string_base.h
+++ b/libstdc++-v3/include/ext/rc_string_base.h
@@ -1,6 +1,6 @@
 // Reference-counted versatile string base -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/rope b/libstdc++-v3/include/ext/rope
index de6ecdd..81e4f23 100644
--- a/libstdc++-v3/include/ext/rope
+++ b/libstdc++-v3/include/ext/rope
@@ -1,6 +1,6 @@
 // SGI's rope class -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/ropeimpl.h b/libstdc++-v3/include/ext/ropeimpl.h
index e571847..e748c7e 100644
--- a/libstdc++-v3/include/ext/ropeimpl.h
+++ b/libstdc++-v3/include/ext/ropeimpl.h
@@ -1,6 +1,6 @@
 // SGI's rope class implementation -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/slist b/libstdc++-v3/include/ext/slist
index 03c5501..1fe9f00 100644
--- a/libstdc++-v3/include/ext/slist
+++ b/libstdc++-v3/include/ext/slist
@@ -1,6 +1,6 @@
 // Singly-linked list implementation -*- C++ -*-
 
-// Copyright (C) 2001-2020 Free Software Foundation, Inc.
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/sso_string_base.h b/libstdc++-v3/include/ext/sso_string_base.h
index f1cc9dc..4a8b3b9 100644
--- a/libstdc++-v3/include/ext/sso_string_base.h
+++ b/libstdc++-v3/include/ext/sso_string_base.h
@@ -1,6 +1,6 @@
 // Short-string-optimized versatile string base -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/stdio_filebuf.h b/libstdc++-v3/include/ext/stdio_filebuf.h
index 3b29728..11f038c 100644
--- a/libstdc++-v3/include/ext/stdio_filebuf.h
+++ b/libstdc++-v3/include/ext/stdio_filebuf.h
@@ -1,6 +1,6 @@
 // File descriptor layer for filebuf -*- C++ -*-
 
-// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/stdio_sync_filebuf.h b/libstdc++-v3/include/ext/stdio_sync_filebuf.h
index 5763809..178b471 100644
--- a/libstdc++-v3/include/ext/stdio_sync_filebuf.h
+++ b/libstdc++-v3/include/ext/stdio_sync_filebuf.h
@@ -1,6 +1,6 @@
 // Iostreams wrapper for stdio FILE* -*- C++ -*-
 
-// Copyright (C) 2003-2020 Free Software Foundation, Inc.
+// Copyright (C) 2003-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/string_conversions.h b/libstdc++-v3/include/ext/string_conversions.h
index 0ded5fd..4eef9c3 100644
--- a/libstdc++-v3/include/ext/string_conversions.h
+++ b/libstdc++-v3/include/ext/string_conversions.h
@@ -1,6 +1,6 @@
 // String Conversions -*- C++ -*-
 
-// Copyright (C) 2008-2020 Free Software Foundation, Inc.
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/throw_allocator.h b/libstdc++-v3/include/ext/throw_allocator.h
index 2364827..f4b3174 100644
--- a/libstdc++-v3/include/ext/throw_allocator.h
+++ b/libstdc++-v3/include/ext/throw_allocator.h
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/type_traits.h b/libstdc++-v3/include/ext/type_traits.h
index cf773cf..ff067c8 100644
--- a/libstdc++-v3/include/ext/type_traits.h
+++ b/libstdc++-v3/include/ext/type_traits.h
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the terms
diff --git a/libstdc++-v3/include/ext/typelist.h b/libstdc++-v3/include/ext/typelist.h
index 1835c14..3ecdc14 100644
--- a/libstdc++-v3/include/ext/typelist.h
+++ b/libstdc++-v3/include/ext/typelist.h
@@ -1,6 +1,6 @@
 // -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/vstring.h b/libstdc++-v3/include/ext/vstring.h
index 093c19a..db02af1 100644
--- a/libstdc++-v3/include/ext/vstring.h
+++ b/libstdc++-v3/include/ext/vstring.h
@@ -1,6 +1,6 @@
 // Versatile string -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/vstring.tcc b/libstdc++-v3/include/ext/vstring.tcc
index 1233480..59c638d 100644
--- a/libstdc++-v3/include/ext/vstring.tcc
+++ b/libstdc++-v3/include/ext/vstring.tcc
@@ -1,6 +1,6 @@
 // Versatile string -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/vstring_fwd.h b/libstdc++-v3/include/ext/vstring_fwd.h
index edde2d3..645c328 100644
--- a/libstdc++-v3/include/ext/vstring_fwd.h
+++ b/libstdc++-v3/include/ext/vstring_fwd.h
@@ -1,6 +1,6 @@
 // <vstring.h> Forward declarations -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/include/ext/vstring_util.h b/libstdc++-v3/include/ext/vstring_util.h
index da52e1a..680d2a4 100644
--- a/libstdc++-v3/include/ext/vstring_util.h
+++ b/libstdc++-v3/include/ext/vstring_util.h
@@ -1,6 +1,6 @@
 // Versatile string utility -*- C++ -*-
 
-// Copyright (C) 2005-2020 Free Software Foundation, Inc.
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the