diff --git a/AUTHORS b/AUTHORS
index 96f2e834..d80d1ff9 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -24,7 +24,7 @@ and nasty bugs.
 
 -----
 
-Copyright (C) 1998-2015, 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 1998-2015, 2018-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/ChangeLog-2012 b/ChangeLog-2012
index fc1b67ec..cdfb6a3d 100644
--- a/ChangeLog-2012
+++ b/ChangeLog-2012
@@ -26732,8 +26732,8 @@
 
 	-----
 
-	Copyright (C) 1987-1988, 1991-2015, 2018-2022 Free Software
-	Foundation, Inc.
+	Copyright (C) 1987-1988, 1991-2015, 2018-2022, 2025 Free
+	Software Foundation, Inc.
 
 	Copying and distribution of this file, with or without
 	modification, are permitted provided the copyright notice and this
diff --git a/Makefile.am b/Makefile.am
index fc774aaa..7b3887b8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,7 @@
 ## Process this file with automake to produce Makefile.in.
 
-# Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/NEWS b/NEWS
index 9784581a..cdef3238 100644
--- a/NEWS
+++ b/NEWS
@@ -4748,7 +4748,7 @@ mode: outline
 fill-column: 76
 End:
 
-Copyright (C) 1995-2015, 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 1995-2015, 2018-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Parser Generator.
 
diff --git a/PACKAGING b/PACKAGING
index 7c20caf2..c5194a42 100644
--- a/PACKAGING
+++ b/PACKAGING
@@ -36,8 +36,8 @@ to the bison package.
 
 -----
 
-Copyright (C) 2002, 2005, 2009-2015, 2018-2022 Free Software Foundation,
-Inc.
+Copyright (C) 2002, 2005, 2009-2015, 2018-2022, 2025 Free Software
+Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/README b/README
index 7a73bc68..6a7cf7f9 100644
--- a/README
+++ b/README
@@ -120,8 +120,8 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018-2022 Free
-Software Foundation, Inc.
+Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018-2022, 2025
+Free Software Foundation, Inc.
 
 This file is part of GNU bison, the GNU Compiler Compiler.
 
diff --git a/README-alpha b/README-alpha
index f8b3f614..6488603d 100644
--- a/README-alpha
+++ b/README-alpha
@@ -12,8 +12,8 @@ the problems you encounter.
 
 -----
 
-Copyright (C) 2002, 2004, 2009-2015, 2018-2022 Free Software Foundation,
-Inc.
+Copyright (C) 2002, 2004, 2009-2015, 2018-2022, 2025 Free Software
+Foundation, Inc.
 
 This file is part of GNU Bison.
 
diff --git a/README-hacking.md b/README-hacking.md
index b5647fff..930eb691 100644
--- a/README-hacking.md
+++ b/README-hacking.md
@@ -638,8 +638,8 @@ bootstrapped.
 
 <!--
 
-Copyright (C) 2002-2005, 2007-2015, 2018-2022 Free Software Foundation,
-Inc.
+Copyright (C) 2002-2005, 2007-2015, 2018-2022, 2025 Free Software
+Foundation, Inc.
 
 This file is part of GNU Bison.
 
diff --git a/THANKS b/THANKS
index d9159fa5..c2183478 100644
--- a/THANKS
+++ b/THANKS
@@ -242,7 +242,7 @@ End:
 
 -----
 
-Copyright (C) 2000-2015, 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2000-2015, 2018-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Parser Generator.
 
diff --git a/TODO b/TODO
index 781a4240..793e4473 100644
--- a/TODO
+++ b/TODO
@@ -714,7 +714,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2001-2004, 2006, 2008-2015, 2018-2022 Free Software
+Copyright (C) 2001-2004, 2006, 2008-2015, 2018-2022, 2025 Free Software
 Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
diff --git a/bootstrap.conf b/bootstrap.conf
index fbe89422..be0d8e44 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,6 +1,7 @@
 # Bootstrap configuration.
 
-# Copyright (C) 2006-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2006-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/Darwin.valgrind b/build-aux/Darwin.valgrind
index 1dc24f90..4a06f451 100644
--- a/build-aux/Darwin.valgrind
+++ b/build-aux/Darwin.valgrind
@@ -1,4 +1,5 @@
-# Copyright (C) 2012-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/Linux.valgrind b/build-aux/Linux.valgrind
index 7400a433..7e30a6fc 100644
--- a/build-aux/Linux.valgrind
+++ b/build-aux/Linux.valgrind
@@ -1,4 +1,5 @@
-# Copyright (C) 2012-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/cross-options.pl b/build-aux/cross-options.pl
index 87434841..7fe4de2b 100755
--- a/build-aux/cross-options.pl
+++ b/build-aux/cross-options.pl
@@ -2,7 +2,7 @@
 
 # Generate a release announcement message.
 
-# Copyright (C) 2007-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/local.mk b/build-aux/local.mk
index ee0e33fc..4297e977 100644
--- a/build-aux/local.mk
+++ b/build-aux/local.mk
@@ -1,4 +1,5 @@
-## Copyright (C) 2000-2015, 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2000-2015, 2018-2022, 2025 Free Software Foundation,
+## Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/build-aux/update-b4-copyright b/build-aux/update-b4-copyright
index 43d6f0ee..71c11612 100755
--- a/build-aux/update-b4-copyright
+++ b/build-aux/update-b4-copyright
@@ -3,7 +3,8 @@
 # Update b4_copyright invocations or b4_copyright_years definitions to
 # include the current year.
 
-# Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/update-package-copyright-year b/build-aux/update-package-copyright-year
index cb8ea352..c35efdbd 100755
--- a/build-aux/update-package-copyright-year
+++ b/build-aux/update-package-copyright-year
@@ -2,7 +2,8 @@
 
 # In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.
 
-# Copyright (C) 2010-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2010-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/build-aux/update-test b/build-aux/update-test
index 11e92532..e7d9df4d 100755
--- a/build-aux/update-test
+++ b/build-aux/update-test
@@ -2,7 +2,7 @@
 
 # Update expectations in an Autotest test suite.
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/cfg.mk b/cfg.mk
index ad580762..462ea63c 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,6 @@
 ## Customize maint.mk                           -*- makefile -*-
-## Copyright (C) 2008-2015, 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2008-2015, 2018-2022, 2025 Free Software Foundation,
+## Inc.
 
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/configure.ac b/configure.ac
index 442874d6..0ac24c9a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,7 +25,7 @@ AC_INIT([GNU Bison],
         [bug-bison@gnu.org],
         [],
         [https://www.gnu.org/software/bison/])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2022])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2025])
 AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
                    [The copyright year for this package])
 
diff --git a/data/README.md b/data/README.md
index dea32d2d..0a77642d 100644
--- a/data/README.md
+++ b/data/README.md
@@ -207,7 +207,8 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2002, 2008-2015, 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2015, 2018-2022, 2025 Free Software Foundation,
+Inc.
 
 This file is part of GNU Bison.
 
diff --git a/data/bison-default.css b/data/bison-default.css
index 70932172..836ffeef 100644
--- a/data/bison-default.css
+++ b/data/bison-default.css
@@ -1,5 +1,5 @@
 /* Default styling rules for Bison when doing terminal output.
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/data/local.mk b/data/local.mk
index 3f5bc68e..3937c0cb 100644
--- a/data/local.mk
+++ b/data/local.mk
@@ -1,5 +1,5 @@
-## Copyright (C) 2002, 2005-2015, 2018-2022 Free Software Foundation,
-## Inc.
+## Copyright (C) 2002, 2005-2015, 2018-2022, 2025 Free Software
+## Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/bison.m4 b/data/skeletons/bison.m4
index 22e6abe6..e0c730d7 100644
--- a/data/skeletons/bison.m4
+++ b/data/skeletons/bison.m4
@@ -2,8 +2,8 @@
 
 # Language-independent M4 Macros for Bison.
 
-# Copyright (C) 2002, 2004-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002, 2004-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/c++-skel.m4 b/data/skeletons/c++-skel.m4
index 3ff1d551..a8402c64 100644
--- a/data/skeletons/c++-skel.m4
+++ b/data/skeletons/c++-skel.m4
@@ -2,7 +2,7 @@
 
 # C++ skeleton dispatching for Bison.
 
-# Copyright (C) 2006-2007, 2009-2015, 2018-2022 Free Software
+# Copyright (C) 2006-2007, 2009-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/data/skeletons/c++.m4 b/data/skeletons/c++.m4
index d63d1548..fa26b069 100644
--- a/data/skeletons/c++.m4
+++ b/data/skeletons/c++.m4
@@ -2,7 +2,7 @@
 
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/c-like.m4 b/data/skeletons/c-like.m4
index 79a761f7..2ae373f1 100644
--- a/data/skeletons/c-like.m4
+++ b/data/skeletons/c-like.m4
@@ -2,7 +2,8 @@
 
 # Common code for C-like languages (C, C++, Java, etc.)
 
-# Copyright (C) 2012-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/c-skel.m4 b/data/skeletons/c-skel.m4
index a3315f2b..88f576c0 100644
--- a/data/skeletons/c-skel.m4
+++ b/data/skeletons/c-skel.m4
@@ -2,7 +2,7 @@
 
 # C skeleton dispatching for Bison.
 
-# Copyright (C) 2006-2007, 2009-2015, 2018-2022 Free Software
+# Copyright (C) 2006-2007, 2009-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/data/skeletons/c.m4 b/data/skeletons/c.m4
index 6f90ebe8..cdfd8126 100644
--- a/data/skeletons/c.m4
+++ b/data/skeletons/c.m4
@@ -2,8 +2,8 @@
 
 # C M4 Macros for Bison.
 
-# Copyright (C) 2002, 2004-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002, 2004-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/d-skel.m4 b/data/skeletons/d-skel.m4
index 436ec1dd..a4ff170a 100644
--- a/data/skeletons/d-skel.m4
+++ b/data/skeletons/d-skel.m4
@@ -2,7 +2,7 @@
 
 # D skeleton dispatching for Bison.
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/d.m4 b/data/skeletons/d.m4
index e82f87e5..bf509a40 100644
--- a/data/skeletons/d.m4
+++ b/data/skeletons/d.m4
@@ -2,7 +2,7 @@
 
 # D language support for Bison
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/glr.c b/data/skeletons/glr.c
index fd654140..2f7e31ee 100644
--- a/data/skeletons/glr.c
+++ b/data/skeletons/glr.c
@@ -2,7 +2,8 @@
 
 # GLR skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -199,7 +200,7 @@ b4_glr_cc_if([],
 [b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C],
-             [2002-2015, 2018-2022])[
+             [2002-2015, 2018-2022, 2025])[
 ]b4_cpp_guard_open([b4_spec_mapped_header_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_mapped_header_file])[
@@ -213,7 +214,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C],
 
 b4_output_begin([b4_parser_file_name])
 b4_copyright([Skeleton implementation for Bison GLR parsers in C],
-             [2002-2015, 2018-2022])[
+             [2002-2015, 2018-2022, 2025])[
 /* C GLR parser skeleton written by Paul Hilfinger.  */
 
 ]b4_disclaimer[
diff --git a/data/skeletons/glr.cc b/data/skeletons/glr.cc
index e31083f8..6c25b8bf 100644
--- a/data/skeletons/glr.cc
+++ b/data/skeletons/glr.cc
@@ -1,6 +1,7 @@
 # C++ GLR skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -381,7 +382,7 @@ b4_percent_code_get([[requires]])[
 ]b4_header_if(
 [b4_output_begin([b4_spec_header_file])
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
-             [2002-2015, 2018-2022])[
+             [2002-2015, 2018-2022, 2025])[
 // C++ GLR parser skeleton written by Akim Demaille.
 
 ]b4_disclaimer[
diff --git a/data/skeletons/glr2.cc b/data/skeletons/glr2.cc
index 970ccfdf..28b12ecd 100644
--- a/data/skeletons/glr2.cc
+++ b/data/skeletons/glr2.cc
@@ -1,6 +1,7 @@
 # C++ GLR skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/java-skel.m4 b/data/skeletons/java-skel.m4
index cde22050..fab432df 100644
--- a/data/skeletons/java-skel.m4
+++ b/data/skeletons/java-skel.m4
@@ -2,8 +2,8 @@
 
 # Java skeleton dispatching for Bison.
 
-# Copyright (C) 2007, 2009-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2007, 2009-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/java.m4 b/data/skeletons/java.m4
index e6bafb8c..a520b203 100644
--- a/data/skeletons/java.m4
+++ b/data/skeletons/java.m4
@@ -2,7 +2,8 @@
 
 # Java language support for Bison
 
-# Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/lalr1.cc b/data/skeletons/lalr1.cc
index 464a23b8..9f60d2b4 100644
--- a/data/skeletons/lalr1.cc
+++ b/data/skeletons/lalr1.cc
@@ -1,6 +1,7 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -159,7 +160,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))])])
 
 
 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018-2022])
+           [2002-2015, 2018-2022, 2025])
 
 m4_define([b4_parser_class],
           [b4_percent_define_get([[api.parser.class]])])
diff --git a/data/skeletons/lalr1.d b/data/skeletons/lalr1.d
index 01175325..d5723e6e 100644
--- a/data/skeletons/lalr1.d
+++ b/data/skeletons/lalr1.d
@@ -1,6 +1,7 @@
 # D skeleton for Bison -*- autoconf -*-
 
-# Copyright (C) 2007-2012, 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012, 2019-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -61,7 +62,7 @@ b4_use_push_for_pull_if([
 # or as class instance variable when doing push parsing.
 b4_output_begin([b4_parser_file_name])
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in D],
-             [2007-2012, 2019-2022])[
+             [2007-2012, 2019-2022, 2025])[
 ]b4_disclaimer[
 ]b4_percent_define_ifdef([package], [module b4_percent_define_get([package]);
 ])[
diff --git a/data/skeletons/lalr1.java b/data/skeletons/lalr1.java
index 11a46873..70a482e5 100644
--- a/data/skeletons/lalr1.java
+++ b/data/skeletons/lalr1.java
@@ -1,6 +1,7 @@
 # Java skeleton for Bison                           -*- java -*-
 
-# Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/location.cc b/data/skeletons/location.cc
index 091a95b1..20211830 100644
--- a/data/skeletons/location.cc
+++ b/data/skeletons/location.cc
@@ -1,6 +1,7 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -16,7 +17,7 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 m4_pushdef([b4_copyright_years],
-           [2002-2015, 2018-2022])
+           [2002-2015, 2018-2022, 2025])
 
 
 # b4_location_file
diff --git a/data/skeletons/stack.hh b/data/skeletons/stack.hh
index 552910a2..dade4745 100644
--- a/data/skeletons/stack.hh
+++ b/data/skeletons/stack.hh
@@ -1,6 +1,7 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/variant.hh b/data/skeletons/variant.hh
index 98a0b3c9..e3a38786 100644
--- a/data/skeletons/variant.hh
+++ b/data/skeletons/variant.hh
@@ -1,6 +1,7 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/skeletons/yacc.c b/data/skeletons/yacc.c
index 8b377475..ef4b0134 100644
--- a/data/skeletons/yacc.c
+++ b/data/skeletons/yacc.c
@@ -1,11 +1,11 @@
 #                                                            -*- C -*-
 # Yacc compatible skeleton for Bison
 
-# Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2022 Free Software
-# Foundation, Inc.
+# Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2022, 2025 Free
+# Software Foundation, Inc.
 
 m4_pushdef([b4_copyright_years],
-           [1984, 1989-1990, 2000-2015, 2018-2022])
+           [1984, 1989-1990, 2000-2015, 2018-2022, 2025])
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/data/xslt/bison.xsl b/data/xslt/bison.xsl
index 7599f13c..8a8ec132 100644
--- a/data/xslt/bison.xsl
+++ b/data/xslt/bison.xsl
@@ -3,7 +3,8 @@
 <!--
     bison.xsl - common templates for Bison XSLT.
 
-    Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+    Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/data/xslt/xml2dot.xsl b/data/xslt/xml2dot.xsl
index 8d99ed17..0bff9354 100644
--- a/data/xslt/xml2dot.xsl
+++ b/data/xslt/xml2dot.xsl
@@ -3,7 +3,8 @@
 <!--
     xml2dot.xsl - transform Bison XML Report into DOT.
 
-    Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+    Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/data/xslt/xml2text.xsl b/data/xslt/xml2text.xsl
index 62d5fd45..b225843a 100644
--- a/data/xslt/xml2text.xsl
+++ b/data/xslt/xml2text.xsl
@@ -3,7 +3,8 @@
 <!--
     xml2text.xsl - transform Bison XML Report into plain text.
 
-    Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+    Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/data/xslt/xml2xhtml.xsl b/data/xslt/xml2xhtml.xsl
index f608a255..a4f14196 100644
--- a/data/xslt/xml2xhtml.xsl
+++ b/data/xslt/xml2xhtml.xsl
@@ -3,7 +3,8 @@
 <!--
     xml2html.xsl - transform Bison XML Report into XHTML.
 
-    Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+    Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+    Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/doc/bison.texi b/doc/bison.texi
index a8e47580..0afe71b0 100644
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -173,8 +173,8 @@
 This manual (@value{UPDATED}) is for GNU Bison (version @value{VERSION}),
 the GNU parser generator.
 
-Copyright @copyright{} 1988--1993, 1995, 1998--2015, 2018--2022 Free
-Software Foundation, Inc.
+Copyright @copyright{} 1988--1993, 1995, 1998--2015, 2018--2022, 2025
+Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document under
@@ -1736,8 +1736,8 @@ after @samp{//}.
 @example
 /* Parser for rpcalc.   -*- C -*-
 
-   Copyright (C) 1988-1993, 1995, 1998-2015, 2018-2021 Free Software
-   Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -2629,8 +2629,8 @@ calculator.
 @example
 /* Parser for mfcalc.   -*- C -*-
 
-   Copyright (C) 1988-1993, 1995, 1998-2015, 2018-2021 Free Software
-   Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -2765,8 +2765,8 @@ provides for either functions or variables to be placed in the table.
 @example
 /* Functions for mfcalc.   -*- C -*-
 
-   Copyright (C) 1988-1993, 1995, 1998-2015, 2018-2021 Free Software
-   Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -12232,7 +12232,8 @@ generate C++.
 @example
 /* Simple variant-based parser.   -*- C++ -*-
 
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -13323,7 +13324,8 @@ library components, and the declaration of the parser class.
 @example
 /* Driver for calc++.   -*- C++ -*-
 
-   Copyright (C) 2005-2015, 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -13419,7 +13421,8 @@ The implementation of the driver (@file{driver.cc}) is straightforward.
 @example
 /* Driver for calc++.   -*- C++ -*-
 
-   Copyright (C) 2005-2015, 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -13486,7 +13489,8 @@ designed the grammar for.
 @example
 /* Parser for calc++.   -*- C++ -*-
 
-   Copyright (C) 2005-2015, 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -13698,7 +13702,8 @@ then the parser's to get the set of defined tokens.
 @example
 /* Scanner for calc++.   -*- C++ -*-
 
-   Copyright (C) 2005-2015, 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -13959,7 +13964,8 @@ The top level file, @file{calc++.cc}, poses no problem.
 @example
 /* Main for calc++.   -*- C++ -*-
 
-   Copyright (C) 2005-2015, 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988--1993, 1995, 1998--2015, 2018--2021, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/doc/local.mk b/doc/local.mk
index 1abe658e..5895916e 100644
--- a/doc/local.mk
+++ b/doc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2001-2003, 2005-2015, 2018-2022 Free Software
+## Copyright (C) 2001-2003, 2005-2015, 2018-2022, 2025 Free Software
 ## Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify
diff --git a/doc/refcard.tex b/doc/refcard.tex
index 0e21a649..6face2b1 100644
--- a/doc/refcard.tex
+++ b/doc/refcard.tex
@@ -19,7 +19,7 @@
 \def\finalout{\overfullrule=0pt}
 %\finalout
 
-% Copyright (c) 1998, 2001, 2009--2015, 2018--2022 Free Software
+% Copyright (c) 1998, 2001, 2009--2015, 2018--2022, 2025 Free Software
 % Foundation, Inc.
 %
 % This file is part of Bison.
diff --git a/etc/README.md b/etc/README.md
index 6ba4e763..be3c8227 100644
--- a/etc/README.md
+++ b/etc/README.md
@@ -22,7 +22,8 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2006, 2009-2015, 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2006, 2009-2015, 2018-2022, 2025 Free Software Foundation,
+Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/etc/bench.pl.in b/etc/bench.pl.in
index e2ea0748..cf25d016 100755
--- a/etc/bench.pl.in
+++ b/etc/bench.pl.in
@@ -1,7 +1,7 @@
 #! /usr/bin/perl -w
 
-# Copyright (C) 2006, 2008-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2006, 2008-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 #
 # This file is part of Bison, the GNU Compiler Compiler.
 #
diff --git a/etc/local.mk b/etc/local.mk
index 6f6bb6de..02666009 100644
--- a/etc/local.mk
+++ b/etc/local.mk
@@ -1,5 +1,5 @@
-## Copyright (C) 2006, 2008-2015, 2018-2022 Free Software Foundation,
-## Inc.
+## Copyright (C) 2006, 2008-2015, 2018-2022, 2025 Free Software
+## Foundation, Inc.
 
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/README.md b/examples/README.md
index 7eafd8d2..6dfbf7bc 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -17,7 +17,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/c++/README.md b/examples/c++/README.md
index 91ab18cf..2f8cb11c 100644
--- a/examples/c++/README.md
+++ b/examples/c++/README.md
@@ -55,7 +55,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/c++/calc++/README.md b/examples/c++/calc++/README.md
index 11ee1810..782c3ded 100644
--- a/examples/c++/calc++/README.md
+++ b/examples/c++/calc++/README.md
@@ -36,7 +36,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/c++/calc++/calc++.test b/examples/c++/calc++/calc++.test
index 868a2601..9550ee49 100755
--- a/examples/c++/calc++/calc++.test
+++ b/examples/c++/calc++/calc++.test
@@ -1,6 +1,7 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/calc++/local.mk b/examples/c++/calc++/local.mk
index 521cf4bf..4a2f7d01 100644
--- a/examples/c++/calc++/local.mk
+++ b/examples/c++/calc++/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2022 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2022, 2025 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
diff --git a/examples/c++/glr/README.md b/examples/c++/glr/README.md
index 7142bde2..9661beef 100644
--- a/examples/c++/glr/README.md
+++ b/examples/c++/glr/README.md
@@ -13,7 +13,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c++/glr/ast.hh b/examples/c++/glr/ast.hh
index ba3ec239..20e328f4 100644
--- a/examples/c++/glr/ast.hh
+++ b/examples/c++/glr/ast.hh
@@ -1,5 +1,5 @@
 /*
-  Copyright (C) 2020-2022 Free Software Foundation, Inc.
+  Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/glr/c++-types.test b/examples/c++/glr/c++-types.test
index 8f6050ea..ecf7367e 100644
--- a/examples/c++/glr/c++-types.test
+++ b/examples/c++/glr/c++-types.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/glr/c++-types.yy b/examples/c++/glr/c++-types.yy
index d011da04..bd4c32a8 100644
--- a/examples/c++/glr/c++-types.yy
+++ b/examples/c++/glr/c++-types.yy
@@ -1,5 +1,5 @@
 /*                                                       -*- C++ -*-
-  Copyright (C) 2020-2022 Free Software Foundation, Inc.
+  Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/glr/local.mk b/examples/c++/glr/local.mk
index d5d01a1a..f70fc0a7 100644
--- a/examples/c++/glr/local.mk
+++ b/examples/c++/glr/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2020-2022 Free Software Foundation, Inc.
+## Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/local.mk b/examples/c++/local.mk
index dcaa83d7..b00bcb45 100644
--- a/examples/c++/local.mk
+++ b/examples/c++/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/variant-11.test b/examples/c++/variant-11.test
index 946b50c0..5fc6648e 100644
--- a/examples/c++/variant-11.test
+++ b/examples/c++/variant-11.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/variant-11.yy b/examples/c++/variant-11.yy
index f73cac91..ee1fd30e 100644
--- a/examples/c++/variant-11.yy
+++ b/examples/c++/variant-11.yy
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2008-2015, 2018-2022 Free Software Foundation, Inc.
+  Copyright (C) 2008-2015, 2018-2022, 2025 Free Software Foundation,
+  Inc.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/variant.test b/examples/c++/variant.test
index 122756a5..79b4d563 100644
--- a/examples/c++/variant.test
+++ b/examples/c++/variant.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c++/variant.yy b/examples/c++/variant.yy
index a6cda01f..a059fa5e 100644
--- a/examples/c++/variant.yy
+++ b/examples/c++/variant.yy
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2008-2015, 2018-2022 Free Software Foundation, Inc.
+  Copyright (C) 2008-2015, 2018-2022, 2025 Free Software Foundation,
+  Inc.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/examples/c/README.md b/examples/c/README.md
index 7b5d6378..abc2f420 100644
--- a/examples/c/README.md
+++ b/examples/c/README.md
@@ -81,7 +81,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of GNU bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/bistromathic/README.md b/examples/c/bistromathic/README.md
index 21dfea83..de3e4e9c 100644
--- a/examples/c/bistromathic/README.md
+++ b/examples/c/bistromathic/README.md
@@ -32,7 +32,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/bistromathic/bistromathic.test b/examples/c/bistromathic/bistromathic.test
index 4a8efe44..a5e33063 100755
--- a/examples/c/bistromathic/bistromathic.test
+++ b/examples/c/bistromathic/bistromathic.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/bistromathic/local.mk b/examples/c/bistromathic/local.mk
index 343e8eb6..f719fe3c 100644
--- a/examples/c/bistromathic/local.mk
+++ b/examples/c/bistromathic/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2020-2022 Free Software Foundation, Inc.
+## Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/bistromathic/parse.y b/examples/c/bistromathic/parse.y
index 99db3540..ecf98273 100644
--- a/examples/c/bistromathic/parse.y
+++ b/examples/c/bistromathic/parse.y
@@ -1,6 +1,6 @@
 /* Parser and scanner for bistromathic.   -*- C -*-
 
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/calc/README.md b/examples/c/calc/README.md
index a6ee7afa..465a826e 100644
--- a/examples/c/calc/README.md
+++ b/examples/c/calc/README.md
@@ -9,7 +9,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2019-2022 Free Software Foundation, Inc.
+Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/calc/calc.test b/examples/c/calc/calc.test
index 4483103c..d2483064 100644
--- a/examples/c/calc/calc.test
+++ b/examples/c/calc/calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/calc/local.mk b/examples/c/calc/local.mk
index 57cb58e5..e98e6da5 100644
--- a/examples/c/calc/local.mk
+++ b/examples/c/calc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2019-2022 Free Software Foundation, Inc.
+## Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/glr/README.md b/examples/c/glr/README.md
index ee54f84e..bd36d305 100644
--- a/examples/c/glr/README.md
+++ b/examples/c/glr/README.md
@@ -10,7 +10,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/glr/c++-types.test b/examples/c/glr/c++-types.test
index 71ce5485..d976f5a1 100644
--- a/examples/c/glr/c++-types.test
+++ b/examples/c/glr/c++-types.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/glr/c++-types.y b/examples/c/glr/c++-types.y
index ca592e27..4f516d35 100644
--- a/examples/c/glr/c++-types.y
+++ b/examples/c/glr/c++-types.y
@@ -1,5 +1,5 @@
 /*                                                       -*- C -*-
-  Copyright (C) 2020-2022 Free Software Foundation, Inc.
+  Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
diff --git a/examples/c/glr/local.mk b/examples/c/glr/local.mk
index fd5c0930..6c1f4710 100644
--- a/examples/c/glr/local.mk
+++ b/examples/c/glr/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2020-2022 Free Software Foundation, Inc.
+## Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/lexcalc/README.md b/examples/c/lexcalc/README.md
index 59e94e3e..722506c9 100644
--- a/examples/c/lexcalc/README.md
+++ b/examples/c/lexcalc/README.md
@@ -11,7 +11,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/lexcalc/lexcalc.test b/examples/c/lexcalc/lexcalc.test
index 2fb66bae..818d951f 100644
--- a/examples/c/lexcalc/lexcalc.test
+++ b/examples/c/lexcalc/lexcalc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/lexcalc/local.mk b/examples/c/lexcalc/local.mk
index 6e8d3c86..25702e67 100644
--- a/examples/c/lexcalc/local.mk
+++ b/examples/c/lexcalc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/lexcalc/parse.y b/examples/c/lexcalc/parse.y
index ad73f9e6..f7315bbd 100644
--- a/examples/c/lexcalc/parse.y
+++ b/examples/c/lexcalc/parse.y
@@ -1,6 +1,6 @@
 /* Parser for lexcalc.   -*- C -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/lexcalc/scan.l b/examples/c/lexcalc/scan.l
index b6961be0..4e24b708 100644
--- a/examples/c/lexcalc/scan.l
+++ b/examples/c/lexcalc/scan.l
@@ -1,6 +1,6 @@
 /* Scanner for lexcalc.   -*- C -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/local.mk b/examples/c/local.mk
index 45f9394f..2c1ff69b 100644
--- a/examples/c/local.mk
+++ b/examples/c/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/mfcalc/local.mk b/examples/c/mfcalc/local.mk
index 8957bbc0..a9a0f7b9 100644
--- a/examples/c/mfcalc/local.mk
+++ b/examples/c/mfcalc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2022 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2022, 2025 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
diff --git a/examples/c/mfcalc/mfcalc.test b/examples/c/mfcalc/mfcalc.test
index 79c34d66..f91ff3e9 100755
--- a/examples/c/mfcalc/mfcalc.test
+++ b/examples/c/mfcalc/mfcalc.test
@@ -1,6 +1,7 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/pushcalc/README.md b/examples/c/pushcalc/README.md
index 0d471d4d..66ad5e33 100644
--- a/examples/c/pushcalc/README.md
+++ b/examples/c/pushcalc/README.md
@@ -20,7 +20,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2020-2022 Free Software Foundation, Inc.
+Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/c/pushcalc/calc.test b/examples/c/pushcalc/calc.test
index c283704d..c04870a7 100644
--- a/examples/c/pushcalc/calc.test
+++ b/examples/c/pushcalc/calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/pushcalc/calc.y b/examples/c/pushcalc/calc.y
index db4a4fdd..56da9dee 100644
--- a/examples/c/pushcalc/calc.y
+++ b/examples/c/pushcalc/calc.y
@@ -1,6 +1,6 @@
 /* Parser and scanner for pushcalc.   -*- C -*-
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/pushcalc/local.mk b/examples/c/pushcalc/local.mk
index d9bfcb3d..0c9ddef0 100644
--- a/examples/c/pushcalc/local.mk
+++ b/examples/c/pushcalc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2020-2022 Free Software Foundation, Inc.
+## Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/reccalc/README.md b/examples/c/reccalc/README.md
index 65f7bf84..4c5cdcd2 100644
--- a/examples/c/reccalc/README.md
+++ b/examples/c/reccalc/README.md
@@ -26,7 +26,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/c/reccalc/local.mk b/examples/c/reccalc/local.mk
index d13128e9..af80d622 100644
--- a/examples/c/reccalc/local.mk
+++ b/examples/c/reccalc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2019-2022 Free Software Foundation, Inc.
+## Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/c/reccalc/parse.y b/examples/c/reccalc/parse.y
index 5e401b73..64dbfbc6 100644
--- a/examples/c/reccalc/parse.y
+++ b/examples/c/reccalc/parse.y
@@ -1,6 +1,6 @@
 /* Parser for reccalc.   -*- C -*-
 
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/reccalc/reccalc.test b/examples/c/reccalc/reccalc.test
index 37255b37..ebaedb46 100644
--- a/examples/c/reccalc/reccalc.test
+++ b/examples/c/reccalc/reccalc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/c/reccalc/scan.l b/examples/c/reccalc/scan.l
index 024b0d2c..d0acde03 100644
--- a/examples/c/reccalc/scan.l
+++ b/examples/c/reccalc/scan.l
@@ -1,6 +1,6 @@
 /* Scanner for reccalc.   -*- C -*-
 
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/c/rpcalc/local.mk b/examples/c/rpcalc/local.mk
index 645024df..56eb43e6 100644
--- a/examples/c/rpcalc/local.mk
+++ b/examples/c/rpcalc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2005-2006, 2008-2015, 2018-2022 Free Software
+## Copyright (C) 2005-2006, 2008-2015, 2018-2022, 2025 Free Software
 ## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
diff --git a/examples/c/rpcalc/rpcalc.test b/examples/c/rpcalc/rpcalc.test
index 15195019..8a49ff46 100755
--- a/examples/c/rpcalc/rpcalc.test
+++ b/examples/c/rpcalc/rpcalc.test
@@ -1,6 +1,7 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/d/README.md b/examples/d/README.md
index c7aec912..38556359 100644
--- a/examples/d/README.md
+++ b/examples/d/README.md
@@ -18,7 +18,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/d/calc/calc.test b/examples/d/calc/calc.test
index 27f7385b..b59fe325 100644
--- a/examples/d/calc/calc.test
+++ b/examples/d/calc/calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/d/calc/calc.y b/examples/d/calc/calc.y
index 823534fa..46b6d35b 100644
--- a/examples/d/calc/calc.y
+++ b/examples/d/calc/calc.y
@@ -1,6 +1,6 @@
 /* Parser and scanner for calc in D.   -*- D -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/d/calc/local.mk b/examples/d/calc/local.mk
index 94a72af3..9299b282 100644
--- a/examples/d/calc/local.mk
+++ b/examples/d/calc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/d/local.mk b/examples/d/local.mk
index cfd23dd3..20f2a68f 100644
--- a/examples/d/local.mk
+++ b/examples/d/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/d/simple/calc.test b/examples/d/simple/calc.test
index 819b00f6..13f801f2 100644
--- a/examples/d/simple/calc.test
+++ b/examples/d/simple/calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/d/simple/calc.y b/examples/d/simple/calc.y
index 834d9a28..5cc25430 100644
--- a/examples/d/simple/calc.y
+++ b/examples/d/simple/calc.y
@@ -1,6 +1,6 @@
 /* Parser and scanner for calc in D.   -*- D -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/d/simple/local.mk b/examples/d/simple/local.mk
index f167bbf5..6035fd78 100644
--- a/examples/d/simple/local.mk
+++ b/examples/d/simple/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/extexi b/examples/extexi
index cfc6f511..94cfe424 100755
--- a/examples/extexi
+++ b/examples/extexi
@@ -3,8 +3,8 @@
 
 # This file is part of GNU Bison
 
-# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015, 2018-2022 Free
-# Software Foundation, Inc.
+# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2015, 2018-2022, 2025
+# Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/java/README.md b/examples/java/README.md
index 0cc5dbb9..0cd785c6 100644
--- a/examples/java/README.md
+++ b/examples/java/README.md
@@ -19,7 +19,7 @@ fill-column: 76
 ispell-dictionary: "american"
 End:
 
-Copyright (C) 2018-2022 Free Software Foundation, Inc.
+Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
diff --git a/examples/java/calc/Calc.test b/examples/java/calc/Calc.test
index dca18c1e..0b16232e 100644
--- a/examples/java/calc/Calc.test
+++ b/examples/java/calc/Calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/java/calc/Calc.y b/examples/java/calc/Calc.y
index 575b41ea..74119673 100644
--- a/examples/java/calc/Calc.y
+++ b/examples/java/calc/Calc.y
@@ -1,6 +1,6 @@
 /* Parser and scanner for calc in Java.   -*- Java -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/java/calc/local.mk b/examples/java/calc/local.mk
index c5a59c70..02638eae 100644
--- a/examples/java/calc/local.mk
+++ b/examples/java/calc/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/java/local.mk b/examples/java/local.mk
index 594d0a57..c054046f 100644
--- a/examples/java/local.mk
+++ b/examples/java/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2020-2022 Free Software Foundation, Inc.
+## Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/java/simple/Calc.test b/examples/java/simple/Calc.test
index ab1f5c75..2287636b 100644
--- a/examples/java/simple/Calc.test
+++ b/examples/java/simple/Calc.test
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/examples/java/simple/Calc.y b/examples/java/simple/Calc.y
index 175028fe..4a3a4da9 100644
--- a/examples/java/simple/Calc.y
+++ b/examples/java/simple/Calc.y
@@ -1,6 +1,6 @@
 /* Simple parser and scanner in Java.   -*- Java -*-
 
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/examples/java/simple/local.mk b/examples/java/simple/local.mk
index ae767a33..85ac49ee 100644
--- a/examples/java/simple/local.mk
+++ b/examples/java/simple/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/local.mk b/examples/local.mk
index 896ec7a0..cba12f1b 100644
--- a/examples/local.mk
+++ b/examples/local.mk
@@ -1,5 +1,5 @@
-## Copyright (C) 2005, 2008-2015, 2018-2022 Free Software Foundation,
-## Inc.
+## Copyright (C) 2005, 2008-2015, 2018-2022, 2025 Free Software
+## Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/examples/test b/examples/test
index 738dcae4..471e1bf2 100755
--- a/examples/test
+++ b/examples/test
@@ -1,6 +1,7 @@
 #! /bin/sh
 
-# Copyright (C) 2005-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2005-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/lib/get-errno.c b/lib/get-errno.c
index 8910ccf3..fca67363 100644
--- a/lib/get-errno.c
+++ b/lib/get-errno.c
@@ -1,6 +1,6 @@
 /* get-errno.c - get and set errno.
 
-   Copyright (C) 2002, 2006, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2002, 2006, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/lib/get-errno.h b/lib/get-errno.h
index 24570c8e..1f4b76ce 100644
--- a/lib/get-errno.h
+++ b/lib/get-errno.h
@@ -1,7 +1,7 @@
 /* get-errno.h - get and set errno.
 
-   Copyright (C) 2002, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/lib/local.mk b/lib/local.mk
index 44390169..a0aaec81 100644
--- a/lib/local.mk
+++ b/lib/local.mk
@@ -1,4 +1,5 @@
-## Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+## Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/lib/main.c b/lib/main.c
index 04ceffff..3358a6bb 100644
--- a/lib/main.c
+++ b/lib/main.c
@@ -1,7 +1,7 @@
 /* Yacc library main function.
 
-   Copyright (C) 2002, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/lib/path-join.c b/lib/path-join.c
index ffde38c3..714516a0 100644
--- a/lib/path-join.c
+++ b/lib/path-join.c
@@ -1,5 +1,5 @@
 /* Concatenate path components.
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
diff --git a/lib/path-join.h b/lib/path-join.h
index 52225078..727de270 100644
--- a/lib/path-join.h
+++ b/lib/path-join.h
@@ -1,5 +1,5 @@
 /* Concatenate path components.
-   Copyright (C) 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
diff --git a/lib/timevar.def b/lib/timevar.def
index 6606fed9..3a806644 100644
--- a/lib/timevar.def
+++ b/lib/timevar.def
@@ -1,7 +1,7 @@
 /* This file contains the definitions for timing variables used to -*- C -*-
    measure run-time performance of the compiler.
 
-   Copyright (C) 2002, 2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2002, 2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    Contributed by Akim Demaille <akim@freefriends.org>.
diff --git a/lib/yyerror.c b/lib/yyerror.c
index 8b86f1c6..bcd8316d 100644
--- a/lib/yyerror.c
+++ b/lib/yyerror.c
@@ -1,7 +1,7 @@
 /* Yacc library error-printing function.
 
-   Copyright (C) 2002, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/m4/bison-check-compiler-flag.m4 b/m4/bison-check-compiler-flag.m4
index 89853069..6a313054 100644
--- a/m4/bison-check-compiler-flag.m4
+++ b/m4/bison-check-compiler-flag.m4
@@ -2,7 +2,7 @@
 
 # serial 1
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/m4/bison-cxx-std.m4 b/m4/bison-cxx-std.m4
index cc7fea19..a6f4c116 100644
--- a/m4/bison-cxx-std.m4
+++ b/m4/bison-cxx-std.m4
@@ -1,6 +1,6 @@
 # bison-cxx-std.m4 serial 1
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/m4/bison-i18n.m4 b/m4/bison-i18n.m4
index 24d53991..57a2c865 100644
--- a/m4/bison-i18n.m4
+++ b/m4/bison-i18n.m4
@@ -1,6 +1,6 @@
 # bison-i18n.m4 serial 2
 
-dnl Copyright (C) 2005-2006, 2009-2015, 2018-2022 Free Software
+dnl Copyright (C) 2005-2006, 2009-2015, 2018-2022, 2025 Free Software
 dnl Foundation, Inc.
 
 dnl This file is free software; the Free Software Foundation
diff --git a/m4/c-working.m4 b/m4/c-working.m4
index 4087ebba..d4aa9412 100644
--- a/m4/c-working.m4
+++ b/m4/c-working.m4
@@ -1,7 +1,7 @@
 # Sanity test a C compiler.
 
-# Copyright (C) 2006, 2009-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2006, 2009-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/m4/cxx.m4 b/m4/cxx.m4
index cb6e9fcf..a3e040fa 100644
--- a/m4/cxx.m4
+++ b/m4/cxx.m4
@@ -1,7 +1,7 @@
 # -*- Autoconf -*-
 # Sanity-test a C++ compiler.
 #
-# Copyright (C) 2004, 2006, 2009-2015, 2018-2022 Free Software
+# Copyright (C) 2004, 2006, 2009-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/m4/flex.m4 b/m4/flex.m4
index c5ed43ac..f8691312 100644
--- a/m4/flex.m4
+++ b/m4/flex.m4
@@ -1,5 +1,6 @@
 # flex.m4 serial 2
-# Copyright (C) 2012-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
diff --git a/src/AnnotationList.c b/src/AnnotationList.c
index 3604daa7..5c8175ad 100644
--- a/src/AnnotationList.c
+++ b/src/AnnotationList.c
@@ -1,6 +1,7 @@
 /* IELR's inadequacy annotation list.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/AnnotationList.h b/src/AnnotationList.h
index 52958abc..fe2dd0e2 100644
--- a/src/AnnotationList.h
+++ b/src/AnnotationList.h
@@ -1,6 +1,7 @@
 /* IELR's inadequacy annotation list.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/InadequacyList.c b/src/InadequacyList.c
index 63093a99..83cb8340 100644
--- a/src/InadequacyList.c
+++ b/src/InadequacyList.c
@@ -1,6 +1,7 @@
 /* IELR's inadequacy list.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/InadequacyList.h b/src/InadequacyList.h
index caa0a933..f2773149 100644
--- a/src/InadequacyList.h
+++ b/src/InadequacyList.h
@@ -1,6 +1,7 @@
 /* IELR's inadequacy list.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/Sbitset.c b/src/Sbitset.c
index 2636ad59..db59d4aa 100644
--- a/src/Sbitset.c
+++ b/src/Sbitset.c
@@ -1,6 +1,7 @@
 /* A simple, memory-efficient bitset implementation.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/Sbitset.h b/src/Sbitset.h
index c232d85f..a1511659 100644
--- a/src/Sbitset.h
+++ b/src/Sbitset.h
@@ -1,6 +1,7 @@
 /* A simple, memory-efficient bitset implementation.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/assoc.c b/src/assoc.c
index 5ebf6d1c..b9ea9019 100644
--- a/src/assoc.c
+++ b/src/assoc.c
@@ -1,7 +1,7 @@
 /* Associativity information.
 
-   Copyright (C) 2002, 2005-2006, 2008-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002, 2005-2006, 2008-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/assoc.h b/src/assoc.h
index 41d43caa..72250e8c 100644
--- a/src/assoc.h
+++ b/src/assoc.h
@@ -1,6 +1,6 @@
 /* Associativity information.
 
-   Copyright (C) 2002, 2006, 2008-2015, 2018-2022 Free Software
+   Copyright (C) 2002, 2006, 2008-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/closure.c b/src/closure.c
index c138cf16..67c94f2b 100644
--- a/src/closure.c
+++ b/src/closure.c
@@ -1,7 +1,7 @@
 /* Closures for Bison
 
    Copyright (C) 1984, 1989, 2000-2002, 2004-2005, 2007, 2009-2015,
-   2018-2022 Free Software Foundation, Inc.
+   2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/closure.h b/src/closure.h
index c29a76b4..7628f085 100644
--- a/src/closure.h
+++ b/src/closure.h
@@ -1,7 +1,7 @@
 /* Subroutines for bison
 
-   Copyright (C) 1984, 1989, 2000-2002, 2007, 2009-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000-2002, 2007, 2009-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/complain.c b/src/complain.c
index 964a5642..7d7a1cd9 100644
--- a/src/complain.c
+++ b/src/complain.c
@@ -1,6 +1,6 @@
 /* Declaration for error-reporting function for Bison.
 
-   Copyright (C) 2000-2002, 2004-2006, 2009-2015, 2018-2022 Free
+   Copyright (C) 2000-2002, 2004-2006, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/complain.h b/src/complain.h
index 818427f5..f9e1ea36 100644
--- a/src/complain.h
+++ b/src/complain.h
@@ -1,7 +1,7 @@
 /* Declaration for error-reporting function for Bison.
 
-   Copyright (C) 2000-2002, 2006, 2009-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000-2002, 2006, 2009-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/conflicts.c b/src/conflicts.c
index 3bf0937f..342308d8 100644
--- a/src/conflicts.c
+++ b/src/conflicts.c
@@ -1,7 +1,7 @@
 /* Find and resolve or report lookahead conflicts for bison,
 
-   Copyright (C) 1984, 1989, 1992, 2000-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 1984, 1989, 1992, 2000-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/conflicts.h b/src/conflicts.h
index 07d74af2..8dac5db5 100644
--- a/src/conflicts.h
+++ b/src/conflicts.h
@@ -1,6 +1,6 @@
 /* Find and resolve or report lookahead conflicts for bison,
 
-   Copyright (C) 2000-2002, 2004, 2007, 2009-2015, 2018-2022 Free
+   Copyright (C) 2000-2002, 2004, 2007, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/counterexample.c b/src/counterexample.c
index 594849c1..d46af4f1 100644
--- a/src/counterexample.c
+++ b/src/counterexample.c
@@ -1,6 +1,6 @@
 /* Conflict counterexample generation
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/counterexample.h b/src/counterexample.h
index 53728f9b..574181b1 100644
--- a/src/counterexample.h
+++ b/src/counterexample.h
@@ -1,6 +1,6 @@
 /* Conflict counterexample generation
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/derivation.c b/src/derivation.c
index f96ed4a7..9032d024 100644
--- a/src/derivation.c
+++ b/src/derivation.c
@@ -1,6 +1,6 @@
 /* Counterexample derivation trees
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/derivation.h b/src/derivation.h
index db043862..95fcbb24 100644
--- a/src/derivation.h
+++ b/src/derivation.h
@@ -1,6 +1,6 @@
 /* Counterexample derivation trees
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/derives.c b/src/derives.c
index 44db4947..cca2f932 100644
--- a/src/derives.c
+++ b/src/derives.c
@@ -1,7 +1,7 @@
 /* Match rules with nonterminals for bison,
 
-   Copyright (C) 1984, 1989, 2000-2003, 2005, 2009-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000-2003, 2005, 2009-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/derives.h b/src/derives.h
index 90059007..4d4fea1b 100644
--- a/src/derives.h
+++ b/src/derives.h
@@ -1,6 +1,6 @@
 /* Match rules with nonterminals for bison,
 
-   Copyright (C) 1984, 1989, 2000-2002, 2009-2015, 2018-2022 Free
+   Copyright (C) 1984, 1989, 2000-2002, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/files.c b/src/files.c
index 32ea5e9e..af168294 100644
--- a/src/files.c
+++ b/src/files.c
@@ -1,6 +1,6 @@
 /* Open and close files for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022 Free
+   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/files.h b/src/files.h
index c2214b0a..686dc01c 100644
--- a/src/files.h
+++ b/src/files.h
@@ -1,7 +1,7 @@
 /* File names and variables for bison,
 
-   Copyright (C) 1984, 1989, 2000-2002, 2006-2007, 2009-2015, 2018-2022
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000-2002, 2006-2007, 2009-2015, 2018-2022,
+   2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/fixits.c b/src/fixits.c
index 0b58bb43..2c28631d 100644
--- a/src/fixits.c
+++ b/src/fixits.c
@@ -1,6 +1,6 @@
 /* Support for fixing grammar files.
 
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/fixits.h b/src/fixits.h
index 7ae29241..9a23adde 100644
--- a/src/fixits.h
+++ b/src/fixits.h
@@ -1,6 +1,6 @@
 /* Support for fixing grammar files.
 
-   Copyright (C) 2019-2022 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/flex-scanner.h b/src/flex-scanner.h
index e4cec853..41eaa082 100644
--- a/src/flex-scanner.h
+++ b/src/flex-scanner.h
@@ -1,7 +1,7 @@
 /* Common parts between scan-code.l, scan-gram.l, and scan-skel.l.
 
-   Copyright (C) 2006, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2006, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/getargs.c b/src/getargs.c
index dff57fe1..79a8b706 100644
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,6 +1,6 @@
 /* Parse command line arguments for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022 Free
+   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/getargs.h b/src/getargs.h
index c34b9d88..d0edce37 100644
--- a/src/getargs.h
+++ b/src/getargs.h
@@ -1,6 +1,6 @@
 /* Parse command line arguments for bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022 Free
+   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/glyphs.c b/src/glyphs.c
index cdfe6f29..75a67358 100644
--- a/src/glyphs.c
+++ b/src/glyphs.c
@@ -1,6 +1,6 @@
 /* Graphical symbols.
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/glyphs.h b/src/glyphs.h
index 9c77b889..96e1a21e 100644
--- a/src/glyphs.h
+++ b/src/glyphs.h
@@ -1,6 +1,6 @@
 /* Graphical symbols.
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/gram.c b/src/gram.c
index 33474ead..4ead9055 100644
--- a/src/gram.c
+++ b/src/gram.c
@@ -1,7 +1,7 @@
 /* Allocate input grammar variables for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2001-2003, 2005-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2001-2003, 2005-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/gram.h b/src/gram.h
index 06ab23db..62d5dbd0 100644
--- a/src/gram.h
+++ b/src/gram.h
@@ -1,7 +1,7 @@
 /* Data definitions for internal representation of Bison's input.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2001-2007, 2009-2015, 2018-2022
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 1992, 2001-2007, 2009-2015,
+   2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/graphviz.c b/src/graphviz.c
index c59aa221..d1144a23 100644
--- a/src/graphviz.c
+++ b/src/graphviz.c
@@ -1,6 +1,6 @@
 /* Output Graphviz specification of a state machine generated by Bison.
 
-   Copyright (C) 2006-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2006-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/graphviz.h b/src/graphviz.h
index 2ca89cbf..368b80a2 100644
--- a/src/graphviz.h
+++ b/src/graphviz.h
@@ -1,7 +1,7 @@
 /* Output Graphviz specification of a state machine generated by Bison.
 
-   Copyright (C) 2006, 2010-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2006, 2010-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/ielr.c b/src/ielr.c
index 3c5ec695..94fe48f5 100644
--- a/src/ielr.c
+++ b/src/ielr.c
@@ -1,6 +1,7 @@
 /* IELR main implementation.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/ielr.h b/src/ielr.h
index 0fa8cb25..00b5f026 100644
--- a/src/ielr.h
+++ b/src/ielr.h
@@ -1,6 +1,7 @@
 /* IELR main implementation.
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lalr.c b/src/lalr.c
index 83f0345e..8a27de20 100644
--- a/src/lalr.c
+++ b/src/lalr.c
@@ -1,7 +1,7 @@
 /* Compute lookahead criteria for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2000-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lalr.h b/src/lalr.h
index 765e5c93..bd27778c 100644
--- a/src/lalr.h
+++ b/src/lalr.h
@@ -1,7 +1,7 @@
 /* Compute lookahead criteria for bison,
 
    Copyright (C) 1984, 1986, 1989, 2000, 2002, 2004, 2006-2007,
-   2009-2015, 2018-2022 Free Software Foundation, Inc.
+   2009-2015, 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/local.mk b/src/local.mk
index 6051723b..1bdcbf4c 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -1,4 +1,5 @@
-## Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+## Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/src/location.c b/src/location.c
index 0f56bd39..fec88d8f 100644
--- a/src/location.c
+++ b/src/location.c
@@ -1,7 +1,7 @@
 /* Locations for Bison
 
-   Copyright (C) 2002, 2005-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2005-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/location.h b/src/location.h
index d63f352f..4c2497b0 100644
--- a/src/location.h
+++ b/src/location.h
@@ -1,7 +1,7 @@
 /* Locations for Bison
 
-   Copyright (C) 2002, 2004-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lr0.c b/src/lr0.c
index b3938884..87b75cfe 100644
--- a/src/lr0.c
+++ b/src/lr0.c
@@ -1,7 +1,7 @@
 /* Generate the LR(0) parser states for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2000-2002, 2004-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2002, 2004-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lr0.h b/src/lr0.h
index 4c298334..5a76ac1c 100644
--- a/src/lr0.h
+++ b/src/lr0.h
@@ -1,7 +1,7 @@
 /* Generate the LR(0) parser states for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2000-2002, 2009-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2002, 2009-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lssi.c b/src/lssi.c
index 2f35c53c..564c4e67 100644
--- a/src/lssi.c
+++ b/src/lssi.c
@@ -1,6 +1,6 @@
 /* Lookahead sensitive state item searches for counterexample generation
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/lssi.h b/src/lssi.h
index e2cc25e8..15ca51db 100644
--- a/src/lssi.h
+++ b/src/lssi.h
@@ -1,6 +1,6 @@
 /* Lookahead sensitive state item searches for counterexample generation
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/main.c b/src/main.c
index 7f2519c9..a61f1202 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,7 +1,7 @@
 /* Top level entry point of Bison.
 
    Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000-2002, 2004-2015,
-   2018-2022 Free Software Foundation, Inc.
+   2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/muscle-tab.c b/src/muscle-tab.c
index f4d84d6a..ffcca814 100644
--- a/src/muscle-tab.c
+++ b/src/muscle-tab.c
@@ -1,6 +1,7 @@
 /* Muscle table manager for Bison.
 
-   Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/muscle-tab.h b/src/muscle-tab.h
index 15254a62..75ce22ad 100644
--- a/src/muscle-tab.h
+++ b/src/muscle-tab.h
@@ -1,6 +1,6 @@
 /* Muscle table manager for Bison,
 
-   Copyright (C) 2001-2003, 2006-2015, 2018-2022 Free Software
+   Copyright (C) 2001-2003, 2006-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/named-ref.c b/src/named-ref.c
index f1b951fc..d9df1a8d 100644
--- a/src/named-ref.c
+++ b/src/named-ref.c
@@ -1,6 +1,7 @@
 /* Named symbol references for Bison
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/named-ref.h b/src/named-ref.h
index 7d3a4ea5..ccd17e9c 100644
--- a/src/named-ref.h
+++ b/src/named-ref.h
@@ -1,6 +1,7 @@
 /* Named symbol references for Bison
 
-   Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/nullable.c b/src/nullable.c
index 08ebd2be..8314f5a8 100644
--- a/src/nullable.c
+++ b/src/nullable.c
@@ -1,6 +1,6 @@
 /* Calculate which nonterminals can expand into the null string for Bison.
 
-   Copyright (C) 1984, 1989, 2000-2006, 2009-2015, 2018-2022 Free
+   Copyright (C) 1984, 1989, 2000-2006, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/nullable.h b/src/nullable.h
index 759bf979..9a6b07b8 100644
--- a/src/nullable.h
+++ b/src/nullable.h
@@ -1,6 +1,6 @@
 /* Part of the bison parser generator,
 
-   Copyright (C) 2000, 2002, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2000, 2002, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/output.c b/src/output.c
index cd332f26..5963714d 100644
--- a/src/output.c
+++ b/src/output.c
@@ -1,6 +1,6 @@
 /* Output the generated parsing program for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022 Free
+   Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/output.h b/src/output.h
index bf4f4aa5..848b528a 100644
--- a/src/output.h
+++ b/src/output.h
@@ -1,6 +1,6 @@
 /* Output the generated parsing program for bison,
 
-   Copyright (C) 2000-2003, 2006-2007, 2009-2015, 2018-2022 Free
+   Copyright (C) 2000-2003, 2006-2007, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/parse-gram.c b/src/parse-gram.c
index 97fbb925..2c1c93cf 100644
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -2,8 +2,8 @@
 
 /* Bison implementation for Yacc-like parsers in C
 
-   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
diff --git a/src/parse-gram.y b/src/parse-gram.y
index 7e2299f1..f467b813 100644
--- a/src/parse-gram.y
+++ b/src/parse-gram.y
@@ -1,6 +1,7 @@
 /* Bison Grammar Parser                             -*- C -*-
 
-   Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/parse-simulation.c b/src/parse-simulation.c
index 7c9fe382..3fe95f1f 100644
--- a/src/parse-simulation.c
+++ b/src/parse-simulation.c
@@ -1,6 +1,6 @@
 /* Parser simulator for unifying counterexample search
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/parse-simulation.h b/src/parse-simulation.h
index 7d66bd9b..ea2db773 100644
--- a/src/parse-simulation.h
+++ b/src/parse-simulation.h
@@ -1,6 +1,6 @@
 /* Parser simulator for unifying counterexample search
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/print-graph.c b/src/print-graph.c
index b8e7b42c..59f05e0f 100644
--- a/src/print-graph.c
+++ b/src/print-graph.c
@@ -1,6 +1,6 @@
 /* Output a graph of the generated parser, for Bison.
 
-   Copyright (C) 2001-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2001-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/print-graph.h b/src/print-graph.h
index 0a496fac..d0f2b06f 100644
--- a/src/print-graph.h
+++ b/src/print-graph.h
@@ -1,6 +1,6 @@
 /* Output a graph of the generated parser, for Bison.
 
-   Copyright (C) 2000, 2006, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2000, 2006, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/print-xml.c b/src/print-xml.c
index e4f77143..f5fd0948 100644
--- a/src/print-xml.c
+++ b/src/print-xml.c
@@ -1,7 +1,7 @@
 /* Print an xml on generated parser, for Bison,
 
-   Copyright (C) 2007, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2007, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/print-xml.h b/src/print-xml.h
index 8bb78359..5085eaf1 100644
--- a/src/print-xml.h
+++ b/src/print-xml.h
@@ -1,7 +1,7 @@
 /* Output an xml of the generated parser, for Bison.
 
-   Copyright (C) 2007, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2007, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/print.c b/src/print.c
index b7e2ebed..b005901a 100644
--- a/src/print.c
+++ b/src/print.c
@@ -1,7 +1,7 @@
 /* Print information on generated parser, for bison,
 
-   Copyright (C) 1984, 1986, 1989, 2000-2005, 2007, 2009-2015, 2018-2022
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2005, 2007, 2009-2015,
+   2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/print.h b/src/print.h
index b00021b0..cc182555 100644
--- a/src/print.h
+++ b/src/print.h
@@ -1,7 +1,7 @@
 /* Print information on generated parser, for bison,
 
-   Copyright (C) 2000, 2009-2015, 2018-2022 Free Software Foundation,
-   Inc.
+   Copyright (C) 2000, 2009-2015, 2018-2022, 2025 Free Software
+   Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/reader.c b/src/reader.c
index 3d60ab36..7ba438dc 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -1,7 +1,7 @@
 /* Input parser for Bison
 
    Copyright (C) 1984, 1986, 1989, 1992, 1998, 2000-2003, 2005-2007,
-   2009-2015, 2018-2022 Free Software Foundation, Inc.
+   2009-2015, 2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/reader.h b/src/reader.h
index 1e9b6dea..eeeaec52 100644
--- a/src/reader.h
+++ b/src/reader.h
@@ -1,6 +1,6 @@
 /* Input parser for Bison
 
-   Copyright (C) 2000-2003, 2005-2007, 2009-2015, 2018-2022 Free
+   Copyright (C) 2000-2003, 2005-2007, 2009-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/reduce.c b/src/reduce.c
index b68b2a30..859c4568 100644
--- a/src/reduce.c
+++ b/src/reduce.c
@@ -1,6 +1,6 @@
 /* Grammar reduction for Bison.
 
-   Copyright (C) 1988-1989, 2000-2003, 2005-2015, 2018-2022 Free
+   Copyright (C) 1988-1989, 2000-2003, 2005-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/reduce.h b/src/reduce.h
index d86a3aa6..2bdce739 100644
--- a/src/reduce.h
+++ b/src/reduce.h
@@ -1,7 +1,7 @@
 /* Grammar reduction for Bison.
 
-   Copyright (C) 2000-2002, 2007, 2009-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000-2002, 2007, 2009-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/relation.c b/src/relation.c
index ae4d3c51..c1c1462c 100644
--- a/src/relation.c
+++ b/src/relation.c
@@ -1,7 +1,7 @@
 /* Binary relations.
 
-   Copyright (C) 2002, 2004-2005, 2009-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002, 2004-2005, 2009-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/relation.h b/src/relation.h
index 4e78a860..96d0d7b3 100644
--- a/src/relation.h
+++ b/src/relation.h
@@ -1,6 +1,6 @@
 /* Binary relations.
 
-   Copyright (C) 2002, 2004, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2002, 2004, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/scan-code.h b/src/scan-code.h
index 2d6537ab..35305623 100644
--- a/src/scan-code.h
+++ b/src/scan-code.h
@@ -1,6 +1,6 @@
 /* Bison code properties structure and scanner.
 
-   Copyright (C) 2006-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2006-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/scan-code.l b/src/scan-code.l
index b6b8fa4d..dbdce804 100644
--- a/src/scan-code.l
+++ b/src/scan-code.l
@@ -1,6 +1,7 @@
 /* Bison Action Scanner                             -*- C -*-
 
-   Copyright (C) 2006-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2006-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/scan-gram.h b/src/scan-gram.h
index 6c6c74de..7fb432d9 100644
--- a/src/scan-gram.h
+++ b/src/scan-gram.h
@@ -1,6 +1,6 @@
 /* Bison Grammar Scanner
 
-   Copyright (C) 2006-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2006-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/scan-gram.l b/src/scan-gram.l
index 64c2fe8d..5f3ff1f3 100644
--- a/src/scan-gram.l
+++ b/src/scan-gram.l
@@ -1,6 +1,7 @@
 /* Bison Grammar Scanner                             -*- C -*-
 
-   Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/scan-skel.h b/src/scan-skel.h
index 62042865..faf9fb0c 100644
--- a/src/scan-skel.h
+++ b/src/scan-skel.h
@@ -1,6 +1,6 @@
 /* Scan Bison Skeletons.
 
-   Copyright (C) 2005-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2005-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/scan-skel.l b/src/scan-skel.l
index d647c079..2733eb29 100644
--- a/src/scan-skel.l
+++ b/src/scan-skel.l
@@ -1,6 +1,7 @@
 /* Scan Bison Skeletons.                                       -*- C -*-
 
-   Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+   Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/state-item.c b/src/state-item.c
index addf4dc3..84d7339e 100644
--- a/src/state-item.c
+++ b/src/state-item.c
@@ -1,6 +1,6 @@
 /* Counterexample Generation Search Nodes
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/state-item.h b/src/state-item.h
index a1f8ffde..1f613f0a 100644
--- a/src/state-item.h
+++ b/src/state-item.h
@@ -1,6 +1,6 @@
 /* Counterexample Generation Search Nodes
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/state.c b/src/state.c
index 9b678ec5..42b4ae54 100644
--- a/src/state.c
+++ b/src/state.c
@@ -1,6 +1,6 @@
 /* Type definitions for the finite state machine for Bison.
 
-   Copyright (C) 2001-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2001-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/state.h b/src/state.h
index 657838f0..4efaaf23 100644
--- a/src/state.h
+++ b/src/state.h
@@ -1,7 +1,7 @@
 /* Type definitions for the finite state machine for Bison.
 
-   Copyright (C) 1984, 1989, 2000-2004, 2007, 2009-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000-2004, 2007, 2009-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/strversion.c b/src/strversion.c
index 5cc0ceec..030bcb2a 100644
--- a/src/strversion.c
+++ b/src/strversion.c
@@ -1,6 +1,6 @@
 /* Convert version string to int.
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/strversion.h b/src/strversion.h
index f61371e4..825c466b 100644
--- a/src/strversion.h
+++ b/src/strversion.h
@@ -1,6 +1,6 @@
 /* Convert version string to int.
 
-   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/symlist.c b/src/symlist.c
index 5485fa73..88ffb50a 100644
--- a/src/symlist.c
+++ b/src/symlist.c
@@ -1,7 +1,7 @@
 /* Lists of symbols for Bison
 
-   Copyright (C) 2002, 2005-2007, 2009-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002, 2005-2007, 2009-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/symlist.h b/src/symlist.h
index c9e29651..537426aa 100644
--- a/src/symlist.h
+++ b/src/symlist.h
@@ -1,7 +1,7 @@
 /* Lists of symbols for Bison
 
-   Copyright (C) 2002, 2005-2007, 2009-2015, 2018-2022 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002, 2005-2007, 2009-2015, 2018-2022, 2025 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/symtab.c b/src/symtab.c
index 0956f54d..0f2925ad 100644
--- a/src/symtab.c
+++ b/src/symtab.c
@@ -1,6 +1,6 @@
 /* Symbol table manager for Bison.
 
-   Copyright (C) 1984, 1989, 2000-2002, 2004-2015, 2018-2022 Free
+   Copyright (C) 1984, 1989, 2000-2002, 2004-2015, 2018-2022, 2025 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/symtab.h b/src/symtab.h
index 1a1b2435..2cf9d4bc 100644
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -1,7 +1,7 @@
 /* Definitions for symtab.c and callers, part of Bison.
 
-   Copyright (C) 1984, 1989, 1992, 2000-2002, 2004-2015, 2018-2022 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 1992, 2000-2002, 2004-2015, 2018-2022, 2025
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/system.h b/src/system.h
index 8ff10c19..9fcc4723 100644
--- a/src/system.h
+++ b/src/system.h
@@ -1,6 +1,6 @@
 /* System-dependent definitions for Bison.
 
-   Copyright (C) 2000-2007, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2000-2007, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/src/tables.c b/src/tables.c
index 72b9d7ef..d54c8f9d 100644
--- a/src/tables.c
+++ b/src/tables.c
@@ -1,7 +1,7 @@
 /* Output the generated parsing program for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2000-2006, 2009-2015, 2018-2022
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 1992, 2000-2006, 2009-2015,
+   2018-2022, 2025 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
diff --git a/src/tables.h b/src/tables.h
index 111d9782..2d0b01bf 100644
--- a/src/tables.h
+++ b/src/tables.h
@@ -1,6 +1,6 @@
 /* Prepare the LALR and GLR parser tables.
 
-   Copyright (C) 2002, 2004, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2002, 2004, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/uniqstr.c b/src/uniqstr.c
index f6c6147e..6e9afb4d 100644
--- a/src/uniqstr.c
+++ b/src/uniqstr.c
@@ -1,6 +1,6 @@
 /* Keep a unique copy of strings.
 
-   Copyright (C) 2002-2005, 2009-2015, 2018-2022 Free Software
+   Copyright (C) 2002-2005, 2009-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/src/uniqstr.h b/src/uniqstr.h
index 55b72e1b..3d687b49 100644
--- a/src/uniqstr.h
+++ b/src/uniqstr.h
@@ -1,6 +1,6 @@
 /* Keeping a unique copy of strings.
 
-   Copyright (C) 2002-2003, 2008-2015, 2018-2022 Free Software
+   Copyright (C) 2002-2003, 2008-2015, 2018-2022, 2025 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
diff --git a/tests/actions.at b/tests/actions.at
index 603153e7..277eea07 100644
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -1,6 +1,7 @@
 # Executing Actions.                               -*- Autotest -*-
 
-# Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/atlocal.in b/tests/atlocal.in
index e28cbc58..0d388d0b 100644
--- a/tests/atlocal.in
+++ b/tests/atlocal.in
@@ -1,7 +1,8 @@
 # @configure_input@                                     -*- shell-script -*-
 # Configurable variable values for Bison test suite.
 
-# Copyright (C) 2000-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/bison.in b/tests/bison.in
index 79143d39..4cdbbbb3 100644
--- a/tests/bison.in
+++ b/tests/bison.in
@@ -2,7 +2,8 @@
 # @configure_input@
 # Wrapper around a non installed bison to make it work as an installed one.
 
-# Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/c++.at b/tests/c++.at
index 77db404d..3a60fea4 100644
--- a/tests/c++.at
+++ b/tests/c++.at
@@ -1,6 +1,6 @@
 # Checking the C++ Features.                    -*- Autotest -*-
 
-# Copyright (C) 2004-2005, 2007-2015, 2018-2022 Free Software
+# Copyright (C) 2004-2005, 2007-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/calc.at b/tests/calc.at
index 0f6c755f..9e6d8661 100644
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -1,6 +1,7 @@
 # Simple calculator.                         -*- Autotest -*-
 
-# Copyright (C) 2000-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2000-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/conflicts.at b/tests/conflicts.at
index 4356b6b8..8f035f01 100644
--- a/tests/conflicts.at
+++ b/tests/conflicts.at
@@ -1,6 +1,6 @@
 # Exercising Bison on conflicts.                         -*- Autotest -*-
 
-# Copyright (C) 2002-2005, 2007-2015, 2018-2022 Free Software
+# Copyright (C) 2002-2005, 2007-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/counterexample.at b/tests/counterexample.at
index 90d2b240..f87e2df2 100644
--- a/tests/counterexample.at
+++ b/tests/counterexample.at
@@ -1,6 +1,6 @@
 # Exercising Bison on counterexamples.                         -*- Autotest -*-
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/cxx-type.at b/tests/cxx-type.at
index 96315541..66442888 100644
--- a/tests/cxx-type.at
+++ b/tests/cxx-type.at
@@ -1,6 +1,7 @@
 # Checking GLR Parsing.                         -*- Autotest -*-
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/d.at b/tests/d.at
index 347e868c..9996671c 100644
--- a/tests/d.at
+++ b/tests/d.at
@@ -1,6 +1,6 @@
 # D features tests.                      -*- Autotest -*-
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/diagnostics.at b/tests/diagnostics.at
index fd63417f..a6e9aa2b 100644
--- a/tests/diagnostics.at
+++ b/tests/diagnostics.at
@@ -1,6 +1,6 @@
 # Checking diagnostics.                              -*- Autotest -*-
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/existing.at b/tests/existing.at
index 7106af6e..86a6a810 100644
--- a/tests/existing.at
+++ b/tests/existing.at
@@ -1,7 +1,7 @@
 # Exercising Bison on actual grammars.                   -*- Autotest -*-
 
-# Copyright (C) 1989-1992, 2000-2005, 2007, 2009-2015, 2018-2022 Free
-# Software Foundation, Inc.
+# Copyright (C) 1989-1992, 2000-2005, 2007, 2009-2015, 2018-2022, 2025
+# Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/glr-regression.at b/tests/glr-regression.at
index 6f2a5f11..4482496e 100644
--- a/tests/glr-regression.at
+++ b/tests/glr-regression.at
@@ -1,7 +1,7 @@
 # Checking GLR Parsing: Regression Tests           -*- Autotest -*-
 
-# Copyright (C) 2002-2003, 2005-2007, 2009-2015, 2018-2022 Free Software
-# Foundation, Inc.
+# Copyright (C) 2002-2003, 2005-2007, 2009-2015, 2018-2022, 2025 Free
+# Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/headers.at b/tests/headers.at
index 14b5cdda..1b370303 100644
--- a/tests/headers.at
+++ b/tests/headers.at
@@ -1,7 +1,7 @@
 # Bison Parser Headers.                               -*- Autotest -*-
 
-# Copyright (C) 2001-2002, 2006-2007, 2009-2015, 2018-2022 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001-2002, 2006-2007, 2009-2015, 2018-2022, 2025 Free
+# Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/input.at b/tests/input.at
index 04b31f99..44393bcc 100644
--- a/tests/input.at
+++ b/tests/input.at
@@ -1,6 +1,7 @@
 # Checking the Bison reader.                    -*- Autotest -*-
 
-# Copyright (C) 2002-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/java.at b/tests/java.at
index fc25cc16..43c8b0e9 100644
--- a/tests/java.at
+++ b/tests/java.at
@@ -1,6 +1,7 @@
 # Java tests for simple calculator.           -*- Autotest -*-
 
-# Copyright (C) 2007-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/javapush.at b/tests/javapush.at
index 5a154ef9..4bd09e7e 100644
--- a/tests/javapush.at
+++ b/tests/javapush.at
@@ -1,6 +1,7 @@
 # Checking Java Push Parsing.                            -*- Autotest -*-
 
-# Copyright (C) 2013-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/linear b/tests/linear
index bf21f418..7d17efe7 100755
--- a/tests/linear
+++ b/tests/linear
@@ -3,7 +3,7 @@
 # Build a grammar whose LALR(1) parser has a given number of states.
 # Useful to test edge cases (e.g., 256 and 257 states, etc.).
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/local.at b/tests/local.at
index c339d073..ee542f9e 100644
--- a/tests/local.at
+++ b/tests/local.at
@@ -2,7 +2,8 @@
 
 # Macros for the GNU Bison Test suite.
 
-# Copyright (C) 2003-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2003-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/local.mk b/tests/local.mk
index bc8535a1..20aeb4ff 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -1,6 +1,7 @@
 ## Makefile for Bison testsuite.
 
-## Copyright (C) 2000-2015, 2018-2022 Free Software Foundation, Inc.
+## Copyright (C) 2000-2015, 2018-2022, 2025 Free Software Foundation,
+## Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
diff --git a/tests/m4.at b/tests/m4.at
index c8cb0097..5078554c 100644
--- a/tests/m4.at
+++ b/tests/m4.at
@@ -1,6 +1,6 @@
 # Basic m4 macros.                               -*- Autotest -*-
 
-# Copyright (C) 2020-2022 Free Software Foundation, Inc.
+# Copyright (C) 2020-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/named-refs.at b/tests/named-refs.at
index 99131b33..6d9dd37c 100644
--- a/tests/named-refs.at
+++ b/tests/named-refs.at
@@ -1,6 +1,7 @@
 # Named references test.                           -*- Autotest -*-
 
-# Copyright (C) 2009-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/output.at b/tests/output.at
index 4ee4bd55..81689898 100644
--- a/tests/output.at
+++ b/tests/output.at
@@ -1,6 +1,6 @@
 # Checking the output filenames.                    -*- Autotest -*-
 
-# Copyright (C) 2000-2002, 2005-2015, 2018-2022 Free Software
+# Copyright (C) 2000-2002, 2005-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/push.at b/tests/push.at
index 95068c94..fb452638 100644
--- a/tests/push.at
+++ b/tests/push.at
@@ -1,7 +1,7 @@
 # Checking Push Parsing.                            -*- Autotest -*-
 
-# Copyright (C) 2007, 2009-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2007, 2009-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/reduce.at b/tests/reduce.at
index 072951e0..16833898 100644
--- a/tests/reduce.at
+++ b/tests/reduce.at
@@ -1,6 +1,6 @@
 # Exercising Bison Grammar Reduction.                      -*- Autotest -*-
 
-# Copyright (C) 2001-2002, 2007-2015, 2018-2022 Free Software
+# Copyright (C) 2001-2002, 2007-2015, 2018-2022, 2025 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/regression.at b/tests/regression.at
index 89a4649a..2b7e05da 100644
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -1,6 +1,7 @@
 # Bison Regressions.                               -*- Autotest -*-
 
-# Copyright (C) 2001-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/report.at b/tests/report.at
index 6f1ef419..05256810 100644
--- a/tests/report.at
+++ b/tests/report.at
@@ -1,6 +1,6 @@
 # Bison Reports.                               -*- Autotest -*-
 
-# Copyright (C) 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2018-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/scanner.at b/tests/scanner.at
index 1273630c..91820c1f 100644
--- a/tests/scanner.at
+++ b/tests/scanner.at
@@ -1,6 +1,6 @@
 # Interface with the scanner.                           -*- Autotest -*-
 
-# Copyright (C) 2019-2022 Free Software Foundation, Inc.
+# Copyright (C) 2019-2022, 2025 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/sets.at b/tests/sets.at
index 8b9f6029..10bfbca7 100644
--- a/tests/sets.at
+++ b/tests/sets.at
@@ -1,6 +1,6 @@
 # Exercising Bison Grammar Sets.                      -*- Autotest -*-
 
-# Copyright (C) 2001-2002, 2005, 2007, 2009-2015, 2018-2022 Free
+# Copyright (C) 2001-2002, 2005, 2007, 2009-2015, 2018-2022, 2025 Free
 # Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/skeletons.at b/tests/skeletons.at
index 13f796b5..ad67ffd2 100644
--- a/tests/skeletons.at
+++ b/tests/skeletons.at
@@ -1,7 +1,7 @@
 # Checking skeleton support.                     -*- Autotest -*-
 
-# Copyright (C) 2007, 2009-2015, 2018-2022 Free Software Foundation,
-# Inc.
+# Copyright (C) 2007, 2009-2015, 2018-2022, 2025 Free Software
+# Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/synclines.at b/tests/synclines.at
index e8da93a3..049c2e85 100644
--- a/tests/synclines.at
+++ b/tests/synclines.at
@@ -1,6 +1,6 @@
 # Executing Actions.                               -*- Autotest -*-
 
-# Copyright (C) 2002, 2004-2005, 2007, 2009-2015, 2018-2022 Free
+# Copyright (C) 2002, 2004-2005, 2007, 2009-2015, 2018-2022, 2025 Free
 # Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/tests/testsuite.at b/tests/testsuite.at
index d9929dc0..b92dbf98 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -1,7 +1,7 @@
 # Test suite for GNU Bison.                             -*- Autotest -*-
 
-# Copyright (C) 2000-2004, 2006-2007, 2009-2015, 2018-2022 Free Software
-# Foundation, Inc.
+# Copyright (C) 2000-2004, 2006-2007, 2009-2015, 2018-2022, 2025 Free
+# Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/torture.at b/tests/torture.at
index cb570f89..01d5938e 100644
--- a/tests/torture.at
+++ b/tests/torture.at
@@ -1,7 +1,7 @@
 # Torturing Bison.                                    -*- Autotest -*-
 
-# Copyright (C) 2001-2002, 2004-2007, 2009-2015, 2018-2022 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001-2002, 2004-2007, 2009-2015, 2018-2022, 2025 Free
+# Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/tests/types.at b/tests/types.at
index 64b3bdb3..36a586b9 100644
--- a/tests/types.at
+++ b/tests/types.at
@@ -1,6 +1,7 @@
 # Value type.                                     -*- Autotest -*-
 
-# Copyright (C) 2013-2015, 2018-2022 Free Software Foundation, Inc.
+# Copyright (C) 2013-2015, 2018-2022, 2025 Free Software Foundation,
+# Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by