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-rw-r--r--AUTHORS2
-rw-r--r--BUGS2
-rw-r--r--HACKING2
-rw-r--r--Makefile.am2
-rw-r--r--NEWS2
-rw-r--r--README2
-rw-r--r--README-alpha2
-rw-r--r--README-hacking2
-rw-r--r--THANKS2
-rw-r--r--TODO2
-rw-r--r--bin/autoconf.in2
-rw-r--r--bin/autoheader.in2
-rw-r--r--bin/autom4te.in2
-rw-r--r--bin/autoreconf.in2
-rw-r--r--bin/autoscan.in2
-rw-r--r--bin/autoupdate.in2
-rw-r--r--bin/ifnames.in2
-rw-r--r--bin/local.mk2
-rwxr-xr-xbootstrap2
-rwxr-xr-xbuild-aux/fetch.pl2
-rw-r--r--build-aux/help-extract.pl2
-rw-r--r--cfg.mk2
-rw-r--r--configure.ac4
-rw-r--r--doc/autoconf.texi2
-rw-r--r--doc/install.texi2
-rw-r--r--doc/local.mk2
-rw-r--r--lib/Autom4te/C4che.pm2
-rw-r--r--lib/Autom4te/Config.pm2
-rw-r--r--lib/Autom4te/General.pm2
-rw-r--r--lib/Autom4te/Request.pm2
-rw-r--r--lib/autoconf/a68.m42
-rw-r--r--lib/autoconf/autoconf.m42
-rw-r--r--lib/autoconf/autoheader.m42
-rw-r--r--lib/autoconf/autoscan.m42
-rw-r--r--lib/autoconf/autotest.m42
-rw-r--r--lib/autoconf/autoupdate.m42
-rw-r--r--lib/autoconf/c.m42
-rw-r--r--lib/autoconf/erlang.m42
-rw-r--r--lib/autoconf/fortran.m42
-rw-r--r--lib/autoconf/functions.m42
-rw-r--r--lib/autoconf/general.m42
-rw-r--r--lib/autoconf/go.m42
-rw-r--r--lib/autoconf/headers.m42
-rw-r--r--lib/autoconf/lang.m42
-rw-r--r--lib/autoconf/libs.m42
-rw-r--r--lib/autoconf/oldnames.m42
-rw-r--r--lib/autoconf/programs.m42
-rw-r--r--lib/autoconf/specific.m42
-rw-r--r--lib/autoconf/status.m42
-rw-r--r--lib/autoconf/types.m42
-rw-r--r--lib/autom4te.in2
-rw-r--r--lib/autoscan/autoscan.pre2
-rw-r--r--lib/autotest/autotest.m42
-rw-r--r--lib/autotest/general.m42
-rw-r--r--lib/autotest/specific.m42
-rw-r--r--lib/emacs/autoconf-mode.el2
-rw-r--r--lib/emacs/autotest-mode.el2
-rw-r--r--lib/freeze.mk2
-rw-r--r--lib/local.mk2
-rw-r--r--lib/m4sugar/foreach.m42
-rw-r--r--lib/m4sugar/m4sh.m42
-rw-r--r--lib/m4sugar/m4sugar.m42
-rw-r--r--lib/version.in2
-rw-r--r--m4/m4.m42
-rw-r--r--m4/make-case.m42
-rw-r--r--man/local.mk2
-rw-r--r--tests/a68.at2
-rw-r--r--tests/atlocal.in2
-rw-r--r--tests/autoscan.at2
-rw-r--r--tests/autotest.at2
-rw-r--r--tests/base.at2
-rw-r--r--tests/c.at2
-rw-r--r--tests/compile.at2
-rw-r--r--tests/erlang.at2
-rw-r--r--tests/foreign.at2
-rw-r--r--tests/fortran.at2
-rw-r--r--tests/go.at2
-rw-r--r--tests/local.at2
-rw-r--r--tests/local.mk2
-rw-r--r--tests/m4sh.at2
-rw-r--r--tests/m4sugar.at2
-rw-r--r--tests/mktests.pl2
-rw-r--r--tests/semantics.at2
-rw-r--r--tests/statesave.m42
-rw-r--r--tests/suite.at2
-rw-r--r--tests/tools.at2
-rw-r--r--tests/torture.at2
-rw-r--r--tests/wrapper.as2
88 files changed, 89 insertions, 89 deletions
diff --git a/AUTHORS b/AUTHORS
index 9ec50665..90c18831 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -111,7 +111,7 @@ mode: text
coding: utf-8
End:
-Copyright (C) 1996, 2000-2001, 2005, 2007-2017, 2020-2025 Free Software
+Copyright (C) 1996, 2000-2001, 2005, 2007-2017, 2020-2026 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
diff --git a/BUGS b/BUGS
index 0237f6d6..168bd4b8 100644
--- a/BUGS
+++ b/BUGS
@@ -3,7 +3,7 @@
This file lists the bugs you must be aware of. Be sure to check this
file before using Autoconf, and especially git versions of Autoconf.
- Copyright (C) 2000-2002, 2006-2017, 2020-2025 Free Software
+ Copyright (C) 2000-2002, 2006-2017, 2020-2026 Free Software
Foundation, Inc.
Copying and distribution of this file, with or without
diff --git a/HACKING b/HACKING
index bd25ded2..45fd80a7 100644
--- a/HACKING
+++ b/HACKING
@@ -155,7 +155,7 @@ that needs to be updated.
-----
-Copyright (C) 2002, 2008-2017, 2020-2025 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2017, 2020-2026 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
diff --git a/Makefile.am b/Makefile.am
index 07642ba5..2e270bec 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
# Make Autoconf.
-# Copyright (C) 1999-2004, 2006-2017, 2020-2025 Free Software
+# Copyright (C) 1999-2004, 2006-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/NEWS b/NEWS
index fb6762ad..3ebeabae 100644
--- a/NEWS
+++ b/NEWS
@@ -2851,7 +2851,7 @@ Various bug fixes.
-----
-Copyright (C) 1993-1996, 1998-2017, 2020-2025 Free Software Foundation,
+Copyright (C) 1993-1996, 1998-2017, 2020-2026 Free Software Foundation,
Inc.
Copying and distribution of this file, with or without modification,
diff --git a/README b/README
index f97de193..251dcf2b 100644
--- a/README
+++ b/README
@@ -76,7 +76,7 @@ We are looking forward to hacking with you!
-----
-Copyright (C) 1992-1994, 1998, 2000-2017, 2020-2025 Free Software
+Copyright (C) 1992-1994, 1998, 2000-2017, 2020-2026 Free Software
Foundation, Inc.
Copying and distribution of this file, with or without modification,
diff --git a/README-alpha b/README-alpha
index cef260d8..811bc744 100644
--- a/README-alpha
+++ b/README-alpha
@@ -22,7 +22,7 @@ users.
-----
-Copyright (C) 2000-2003, 2009-2017, 2020-2025 Free Software Foundation,
+Copyright (C) 2000-2003, 2009-2017, 2020-2026 Free Software Foundation,
Inc.
Copying and distribution of this file, with or without modification,
diff --git a/README-hacking b/README-hacking
index 6598964d..4c6b8c4d 100644
--- a/README-hacking
+++ b/README-hacking
@@ -137,7 +137,7 @@ Enjoy!
-----
-Copyright (C) 2002-2017, 2020-2025 Free Software Foundation, Inc.
+Copyright (C) 2002-2017, 2020-2026 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
diff --git a/THANKS b/THANKS
index 9d89bc5e..cb536228 100644
--- a/THANKS
+++ b/THANKS
@@ -459,7 +459,7 @@ mode: text
coding: utf-8
End:
-Copyright (C) 1999-2017, 2020-2025 Free Software Foundation, Inc.
+Copyright (C) 1999-2017, 2020-2026 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/TODO b/TODO
index 66ad7579..563ae535 100644
--- a/TODO
+++ b/TODO
@@ -591,7 +591,7 @@ with autoconf scripts.
------------------------------------------------------------------------------
-Copyright (C) 1994-1996, 1999-2002, 2007-2017, 2020-2025 Free Software
+Copyright (C) 1994-1996, 1999-2002, 2007-2017, 2020-2026 Free Software
Foundation, Inc.
Copying and distribution of this file, with or without modification,
diff --git a/bin/autoconf.in b/bin/autoconf.in
index 8979b947..cbf41b62 100644
--- a/bin/autoconf.in
+++ b/bin/autoconf.in
@@ -7,7 +7,7 @@ eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
# autoconf -- create 'configure' using m4 macros.
-# Copyright (C) 1992-1994, 1996, 1999-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1994, 1996, 1999-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/autoheader.in b/bin/autoheader.in
index c2509a16..7fea875b 100644
--- a/bin/autoheader.in
+++ b/bin/autoheader.in
@@ -7,7 +7,7 @@ eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
# autoheader -- create 'config.h.in' from 'configure.ac'.
-# Copyright (C) 1992-1994, 1996, 1998-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1994, 1996, 1998-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/autom4te.in b/bin/autom4te.in
index 354b29d9..0f091fe4 100644
--- a/bin/autom4te.in
+++ b/bin/autom4te.in
@@ -6,7 +6,7 @@ eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
if 0;
# autom4te - Wrapper around M4 libraries.
-# Copyright (C) 2001-2003, 2005-2017, 2020-2025 Free Software
+# Copyright (C) 2001-2003, 2005-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/autoreconf.in b/bin/autoreconf.in
index a5ffc6fa..668dc300 100644
--- a/bin/autoreconf.in
+++ b/bin/autoreconf.in
@@ -6,7 +6,7 @@ eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
if 0;
# autoreconf - install the GNU Build System in a directory tree
-# Copyright (C) 1994, 1999-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 1994, 1999-2017, 2020-2026 Free Software Foundation,
# Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/autoscan.in b/bin/autoscan.in
index 2927ed33..cc45b600 100644
--- a/bin/autoscan.in
+++ b/bin/autoscan.in
@@ -3,7 +3,7 @@
# @configure_input@
# autoscan - Create configure.scan (a preliminary configure.ac) for a package.
-# Copyright (C) 1994, 1999-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 1994, 1999-2017, 2020-2026 Free Software Foundation,
# Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/autoupdate.in b/bin/autoupdate.in
index c4e3f306..c6685567 100644
--- a/bin/autoupdate.in
+++ b/bin/autoupdate.in
@@ -3,7 +3,7 @@
# @configure_input@
# autoupdate - modernize an Autoconf file.
-# Copyright (C) 1994, 1999-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 1994, 1999-2017, 2020-2026 Free Software Foundation,
# Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/ifnames.in b/bin/ifnames.in
index 3d3d81d3..1b86ac0d 100644
--- a/bin/ifnames.in
+++ b/bin/ifnames.in
@@ -7,7 +7,7 @@ eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
# ifnames - print the identifiers used in C preprocessor conditionals
-# Copyright (C) 1994-1995, 1999-2003, 2005-2017, 2020-2025 Free Software
+# Copyright (C) 1994-1995, 1999-2003, 2005-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bin/local.mk b/bin/local.mk
index b9d242f8..021e551b 100644
--- a/bin/local.mk
+++ b/bin/local.mk
@@ -1,6 +1,6 @@
# Make Autoconf commands.
-# Copyright (C) 1999-2007, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 1999-2007, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/bootstrap b/bootstrap
index c148bcbf..6d6b98d2 100755
--- a/bootstrap
+++ b/bootstrap
@@ -2,7 +2,7 @@
# This script helps bootstrap autoconf, when checked out from git.
#
-# Copyright (C) 2021-2025 Free Software Foundation, Inc.
+# Copyright (C) 2021-2026 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/fetch.pl b/build-aux/fetch.pl
index 3f64e8bf..d8a30513 100755
--- a/build-aux/fetch.pl
+++ b/build-aux/fetch.pl
@@ -1,5 +1,5 @@
#! /usr/bin/perl
-# Copyright (C) 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2020-2026 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/help-extract.pl b/build-aux/help-extract.pl
index ed3807a6..bf6c7227 100644
--- a/build-aux/help-extract.pl
+++ b/build-aux/help-extract.pl
@@ -1,5 +1,5 @@
# help-extract -- extract --help and --version output from a script.
-# Copyright (C) 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2020-2026 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 3ac023a0..e800ad39 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,5 @@
# Customize maint.mk for Autoconf. -*- Makefile -*-
-# Copyright (C) 2003-2004, 2006, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 2003-2004, 2006, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/configure.ac b/configure.ac
index 45b4828f..956af51b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1992-1995, 1999-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1995, 1999-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
@@ -38,7 +38,7 @@ AM_INIT_AUTOMAKE([1.11 dist-xz readme-alpha no-texinfo.tex std-options])
# Keep this on a line of its own, since it must be found and processed
# by the 'update-release-year' rule in our Makefile.
-RELEASE_YEAR=2025
+RELEASE_YEAR=2026
AC_SUBST([RELEASE_YEAR])
AB_INIT
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 20e03d56..6d51c8a7 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -211,7 +211,7 @@ This manual (@value{UPDATED}) is for GNU Autoconf
a package for creating scripts to configure source code packages using
templates and an M4 macro package.
-Copyright @copyright{} 1992--1996, 1998--2017, 2020--2025 Free Software
+Copyright @copyright{} 1992--1996, 1998--2017, 2020--2026 Free Software
Foundation, Inc.
@quotation
diff --git a/doc/install.texi b/doc/install.texi
index 98eebe3d..8cb21c67 100644
--- a/doc/install.texi
+++ b/doc/install.texi
@@ -479,7 +479,7 @@ Run @samp{configure --help} for more details.
@node Copyright notice
@section Copyright notice
-Copyright @copyright{} 1994--1996, 1999--2002, 2004--2017, 2020--2025
+Copyright @copyright{} 1994--1996, 1999--2002, 2004--2017, 2020--2026
Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification, are
diff --git a/doc/local.mk b/doc/local.mk
index 02640da6..b64ebbc2 100644
--- a/doc/local.mk
+++ b/doc/local.mk
@@ -1,6 +1,6 @@
# Make Autoconf documentation.
-# Copyright (C) 2000-2003, 2007-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2003, 2007-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/Autom4te/C4che.pm b/lib/Autom4te/C4che.pm
index 2c69463a..b3fc6875 100644
--- a/lib/Autom4te/C4che.pm
+++ b/lib/Autom4te/C4che.pm
@@ -1,5 +1,5 @@
# autoconf -- create 'configure' using m4 macros
-# Copyright (C) 2003, 2006, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2003, 2006, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/Autom4te/Config.pm b/lib/Autom4te/Config.pm
index 0a113594..5932d7c2 100644
--- a/lib/Autom4te/Config.pm
+++ b/lib/Autom4te/Config.pm
@@ -1,5 +1,5 @@
# -*- Perl -*-
-# Copyright (C) 2003-2025 Free Software Foundation, Inc.
+# Copyright (C) 2003-2026 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/Autom4te/General.pm b/lib/Autom4te/General.pm
index 06cf845b..03be26d7 100644
--- a/lib/Autom4te/General.pm
+++ b/lib/Autom4te/General.pm
@@ -1,5 +1,5 @@
# autoconf -- create 'configure' using m4 macros
-# Copyright (C) 2001-2004, 2006-2007, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2001-2004, 2006-2007, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/Autom4te/Request.pm b/lib/Autom4te/Request.pm
index 41213664..ce8e75e7 100644
--- a/lib/Autom4te/Request.pm
+++ b/lib/Autom4te/Request.pm
@@ -1,5 +1,5 @@
# autoconf -- create 'configure' using m4 macros
-# Copyright (C) 2001-2003, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2001-2003, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/autoconf/a68.m4 b/lib/autoconf/a68.m4
index 12d366c9..96aee3fc 100644
--- a/lib/autoconf/a68.m4
+++ b/lib/autoconf/a68.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Algol 68 language support.
-# Copyright 2025 Free Software Foundation, Inc.
+# Copyright 2025-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/autoconf.m4 b/lib/autoconf/autoconf.m4
index d79888e9..79eaa135 100644
--- a/lib/autoconf/autoconf.m4
+++ b/lib/autoconf/autoconf.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Driver that loads the Autoconf macro files.
#
-# Copyright (C) 1994, 1999-2002, 2006, 2008-2017, 2020-2025 Free
+# Copyright (C) 1994, 1999-2002, 2006, 2008-2017, 2020-2026 Free
# Software Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/autoheader.m4 b/lib/autoconf/autoheader.m4
index ee52515e..08214470 100644
--- a/lib/autoconf/autoheader.m4
+++ b/lib/autoconf/autoheader.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Interface with autoheader.
-# Copyright (C) 1992-1996, 1998-2002, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2002, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/autoscan.m4 b/lib/autoconf/autoscan.m4
index da3be695..dee40a3e 100644
--- a/lib/autoconf/autoscan.m4
+++ b/lib/autoconf/autoscan.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Interface with autoscan.
-# Copyright (C) 2002, 2009-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2002, 2009-2017, 2020-2026 Free Software Foundation,
# Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/autotest.m4 b/lib/autoconf/autotest.m4
index 515f5b43..9f5ad917 100644
--- a/lib/autoconf/autotest.m4
+++ b/lib/autoconf/autotest.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Interface with Autotest.
-# Copyright (C) 1992-1996, 1998-2005, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2005, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/autoupdate.m4 b/lib/autoconf/autoupdate.m4
index 5af7f154..82cf9d6b 100644
--- a/lib/autoconf/autoupdate.m4
+++ b/lib/autoconf/autoupdate.m4
@@ -2,7 +2,7 @@
# Interface with autoupdate.
# Copyright (C) 1992-1996, 1998-2001, 2003-2004, 2006, 2009-2017,
-# 2020-2025 Free Software Foundation, Inc.
+# 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4
index 689e506d..4771b2c9 100644
--- a/lib/autoconf/c.m4
+++ b/lib/autoconf/c.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Programming languages support.
-# Copyright (C) 2001-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/erlang.m4 b/lib/autoconf/erlang.m4
index ae6d2eb4..861918c1 100644
--- a/lib/autoconf/erlang.m4
+++ b/lib/autoconf/erlang.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Erlang/OTP language support.
-# Copyright (C) 2006, 2008-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2006, 2008-2017, 2020-2026 Free Software Foundation,
# Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4
index 09459f07..87e00cc6 100644
--- a/lib/autoconf/fortran.m4
+++ b/lib/autoconf/fortran.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Fortran languages support.
-# Copyright (C) 2001, 2003-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2001, 2003-2017, 2020-2026 Free Software Foundation,
# Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 6ec892a9..c0472d03 100644
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Checking for functions.
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index cbc997f1..e94f9b00 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Parameterized macros.
m4_define([_AC_COPYRIGHT_YEARS], [
-Copyright (C) 1992-1996, 1998-2017, 2020-2025 Free Software Foundation,
+Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software Foundation,
Inc.
])
diff --git a/lib/autoconf/go.m4 b/lib/autoconf/go.m4
index ec4cb7ba..d9b8915e 100644
--- a/lib/autoconf/go.m4
+++ b/lib/autoconf/go.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Go language support.
-# Copyright (C) 2011-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2011-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/headers.m4 b/lib/autoconf/headers.m4
index cdba5f51..9d6609f2 100644
--- a/lib/autoconf/headers.m4
+++ b/lib/autoconf/headers.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Checking for headers.
#
-# Copyright (C) 1988, 1999-2004, 2006, 2008-2017, 2020-2025 Free
+# Copyright (C) 1988, 1999-2004, 2006, 2008-2017, 2020-2026 Free
# Software Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index 623ceca1..ac8891e7 100644
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Programming languages support.
-# Copyright (C) 2000-2002, 2004-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2002, 2004-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/libs.m4 b/lib/autoconf/libs.m4
index 6bfd9f87..a71ae63c 100644
--- a/lib/autoconf/libs.m4
+++ b/lib/autoconf/libs.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Checking for libraries.
-# Copyright (C) 1992-1996, 1998-2006, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2006, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/oldnames.m4 b/lib/autoconf/oldnames.m4
index 0d2e478b..c302567a 100644
--- a/lib/autoconf/oldnames.m4
+++ b/lib/autoconf/oldnames.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Support old macros, and provide automated updates.
-# Copyright (C) 1994, 1999-2001, 2003, 2009-2017, 2020-2025 Free
+# Copyright (C) 1994, 1999-2001, 2003, 2009-2017, 2020-2026 Free
# Software Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/programs.m4 b/lib/autoconf/programs.m4
index d8b8b8b1..332a72bc 100644
--- a/lib/autoconf/programs.m4
+++ b/lib/autoconf/programs.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Checking for programs.
-# Copyright (C) 1992-1996, 1998-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index ecd6ab5a..38e9bfae 100644
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Macros that test for specific, unclassified, features.
#
-# Copyright (C) 1992-1996, 1998-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/status.m4 b/lib/autoconf/status.m4
index 0ac451dc..3836a453 100644
--- a/lib/autoconf/status.m4
+++ b/lib/autoconf/status.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Parameterizing and creating config.status.
-# Copyright (C) 1992-1996, 1998-2017, 2020-2025 Free Software
+# Copyright (C) 1992-1996, 1998-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autoconf/types.m4 b/lib/autoconf/types.m4
index d80303a2..be0fac5f 100644
--- a/lib/autoconf/types.m4
+++ b/lib/autoconf/types.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Type related macros: existence, sizeof, and structure members.
#
-# Copyright (C) 2000-2002, 2004-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2002, 2004-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autom4te.in b/lib/autom4te.in
index 84077129..7fae4a4a 100644
--- a/lib/autom4te.in
+++ b/lib/autom4te.in
@@ -1,6 +1,6 @@
# Definition of Autom4te option sets. -*- Makefile -*-
#
-# Copyright (C) 2001-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017, 2020-2026 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/autoscan/autoscan.pre b/lib/autoscan/autoscan.pre
index 69250c5d..dcbbe4f5 100644
--- a/lib/autoscan/autoscan.pre
+++ b/lib/autoscan/autoscan.pre
@@ -1,5 +1,5 @@
# autoscan's mapping to Autoconf macros -*- Makefile -*-
-# Copyright (C) 1992-1994, 1996, 1999-2002, 2009-2017, 2020-2025 Free
+# Copyright (C) 1992-1994, 1996, 1999-2002, 2009-2017, 2020-2026 Free
# Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/autotest/autotest.m4 b/lib/autotest/autotest.m4
index 68907066..f55206a2 100644
--- a/lib/autotest/autotest.m4
+++ b/lib/autotest/autotest.m4
@@ -1,6 +1,6 @@
# This file is part of Autoconf. -*- Autoconf -*-
# M4 macros used in building test suites.
-# Copyright (C) 2000-2002, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2002, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This file is part of Autoconf. This program is free
diff --git a/lib/autotest/general.m4 b/lib/autotest/general.m4
index fa8c7a65..889c0526 100644
--- a/lib/autotest/general.m4
+++ b/lib/autotest/general.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# M4 macros used in building test suites.
m4_define([_AT_COPYRIGHT_YEARS], [
-Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+Copyright (C) 2000-2017, 2020-2026 Free Software Foundation, Inc.
])
# This file is part of Autoconf. This program is free
diff --git a/lib/autotest/specific.m4 b/lib/autotest/specific.m4
index 0e8078c5..f581a1ff 100644
--- a/lib/autotest/specific.m4
+++ b/lib/autotest/specific.m4
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# M4 macros used in running tests using third-party testing tools.
m4_define([_AT_COPYRIGHT_YEARS],
-[Copyright (C) 2009-2017, 2020-2025 Free Software Foundation, Inc.])
+[Copyright (C) 2009-2017, 2020-2026 Free Software Foundation, Inc.])
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/emacs/autoconf-mode.el b/lib/emacs/autoconf-mode.el
index 3b93fb17..3f171bc7 100644
--- a/lib/emacs/autoconf-mode.el
+++ b/lib/emacs/autoconf-mode.el
@@ -6,7 +6,7 @@
;; This file is part of Autoconf
-;; Copyright (C) 2001, 2006, 2009-2017, 2020-2025 Free Software
+;; Copyright (C) 2001, 2006, 2009-2017, 2020-2026 Free Software
;; Foundation, Inc.
;;
;; This program is free software: you can redistribute it and/or modify
diff --git a/lib/emacs/autotest-mode.el b/lib/emacs/autotest-mode.el
index d5a52c9a..758a2746 100644
--- a/lib/emacs/autotest-mode.el
+++ b/lib/emacs/autotest-mode.el
@@ -5,7 +5,7 @@
;; This file is part of Autoconf
-;; Copyright (C) 2001, 2009-2017, 2020-2025 Free Software Foundation,
+;; Copyright (C) 2001, 2009-2017, 2020-2026 Free Software Foundation,
;; Inc.
;;
;; This program is free software: you can redistribute it and/or modify
diff --git a/lib/freeze.mk b/lib/freeze.mk
index 9535306f..b194c382 100644
--- a/lib/freeze.mk
+++ b/lib/freeze.mk
@@ -1,6 +1,6 @@
# Freeze M4 files.
-# Copyright (C) 2002, 2004, 2006-2017, 2020-2025 Free Software
+# Copyright (C) 2002, 2004, 2006-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/local.mk b/lib/local.mk
index 62440dd0..5490fd57 100644
--- a/lib/local.mk
+++ b/lib/local.mk
@@ -1,6 +1,6 @@
# Make Autoconf-related libraries.
-# Copyright (C) 2001-2005, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2001-2005, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/lib/m4sugar/foreach.m4 b/lib/m4sugar/foreach.m4
index 889a147f..aa42a852 100644
--- a/lib/m4sugar/foreach.m4
+++ b/lib/m4sugar/foreach.m4
@@ -4,7 +4,7 @@
# Speeds up GNU M4 1.4.x by avoiding quadratic $@ recursion, but penalizes
# GNU M4 1.6 by requiring more memory and macro expansions.
#
-# Copyright (C) 2008-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2008-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index ca8db791..372ebddf 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -2,7 +2,7 @@
# M4 sugar for common shell constructs.
# Requires GNU M4 and M4sugar.
#
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/m4sugar/m4sugar.m4 b/lib/m4sugar/m4sugar.m4
index 02c76a81..07960996 100644
--- a/lib/m4sugar/m4sugar.m4
+++ b/lib/m4sugar/m4sugar.m4
@@ -3,7 +3,7 @@ divert(-1)# -*- Autoconf -*-
# Base M4 layer.
# Requires GNU M4.
#
-# Copyright (C) 1999-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 1999-2017, 2020-2026 Free Software Foundation, Inc.
# This file is part of Autoconf. This program is free
# software; you can redistribute it and/or modify it under the
diff --git a/lib/version.in b/lib/version.in
index 3f881753..1575c351 100644
--- a/lib/version.in
+++ b/lib/version.in
@@ -1,6 +1,6 @@
# Version information for -*- Autoconf -*-.
# @configure_input@
-# Copyright (C) 1999-2002, 2006-2007, 2009, 2021-2025 Free Software
+# Copyright (C) 1999-2002, 2006-2007, 2009, 2021-2026 Free Software
# Foundation, Inc.
m4_define([m4_PACKAGE_NAME], [@PACKAGE_NAME@])
diff --git a/m4/m4.m4 b/m4/m4.m4
index 32bef114..629c4aa1 100644
--- a/m4/m4.m4
+++ b/m4/m4.m4
@@ -1,6 +1,6 @@
# m4.m4 serial 13
-# Copyright (C) 2000, 2006-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2000, 2006-2017, 2020-2026 Free Software Foundation,
# Inc.
# Copying and distribution of this file, with or without modification,
diff --git a/m4/make-case.m4 b/m4/make-case.m4
index 1610c7b8..965602ed 100644
--- a/m4/make-case.m4
+++ b/m4/make-case.m4
@@ -1,6 +1,6 @@
# make-case.m4 serial 1
-# Copyright (C) 2008-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2008-2017, 2020-2026 Free Software Foundation, Inc.
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the notice and
diff --git a/man/local.mk b/man/local.mk
index 870e88ce..fa5bfaa2 100644
--- a/man/local.mk
+++ b/man/local.mk
@@ -1,6 +1,6 @@
# Make Autoconf man pages.
-# Copyright (C) 2001, 2004-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2001, 2004-2017, 2020-2026 Free Software Foundation,
# Inc.
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/a68.at b/tests/a68.at
index e9ac00fc..fe6993ed 100644
--- a/tests/a68.at
+++ b/tests/a68.at
@@ -2,7 +2,7 @@
AT_BANNER([Algol 68 low level compiling and utility macros.])
-# Copyright (C) 2025 Free Software Foundation, Inc.
+# Copyright (C) 2025-2026 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 ea1677e6..6acc4684 100644
--- a/tests/atlocal.in
+++ b/tests/atlocal.in
@@ -2,7 +2,7 @@
# @configure_input@
# Configurable variable values for Autoconf test suite.
-# Copyright (C) 2000-2001, 2005, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2005, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/autoscan.at b/tests/autoscan.at
index f65c8f37..2e7d0e36 100644
--- a/tests/autoscan.at
+++ b/tests/autoscan.at
@@ -2,7 +2,7 @@
AT_BANNER([Autoscan.])
-# Copyright (C) 2005, 2009-2017, 2020-2025 Free Software Foundation,
+# Copyright (C) 2005, 2009-2017, 2020-2026 Free Software Foundation,
# Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/autotest.at b/tests/autotest.at
index 24de2aed..37df15ba 100644
--- a/tests/autotest.at
+++ b/tests/autotest.at
@@ -2,7 +2,7 @@
AT_BANNER([Autotest.])
-# Copyright (C) 2004-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2004-2017, 2020-2026 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/base.at b/tests/base.at
index 5ef3d9e4..ab5f7b55 100644
--- a/tests/base.at
+++ b/tests/base.at
@@ -2,7 +2,7 @@
AT_BANNER([Autoconf base layer.])
-# Copyright (C) 2000-2001, 2003, 2005-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2003, 2005-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/c.at b/tests/c.at
index a5274307..0683bbe9 100644
--- a/tests/c.at
+++ b/tests/c.at
@@ -2,7 +2,7 @@
AT_BANNER([C low level compiling/preprocessing macros.])
-# Copyright (C) 2000-2006, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2006, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/compile.at b/tests/compile.at
index 49b88650..aaa8a57d 100644
--- a/tests/compile.at
+++ b/tests/compile.at
@@ -2,7 +2,7 @@
AT_BANNER([Low level compiling/preprocessing macros.])
-# Copyright (C) 2000-2001, 2003, 2005-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2003, 2005-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/erlang.at b/tests/erlang.at
index 37f1ff3d..4f64291e 100644
--- a/tests/erlang.at
+++ b/tests/erlang.at
@@ -8,7 +8,7 @@
AT_BANNER([Erlang low level compiling and utility macros.])
-# Copyright (C) 2009-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017, 2020-2026 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/foreign.at b/tests/foreign.at
index 2cb05947..3da7ae0b 100644
--- a/tests/foreign.at
+++ b/tests/foreign.at
@@ -2,7 +2,7 @@
AT_BANNER([Compatibility with external tools and macros.])
-# Copyright (C) 2000-2007, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2007, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/fortran.at b/tests/fortran.at
index 1a33aa75..795eebdf 100644
--- a/tests/fortran.at
+++ b/tests/fortran.at
@@ -2,7 +2,7 @@
AT_BANNER([Fortran low level compiling/preprocessing macros.])
-# Copyright (C) 2000-2001, 2003, 2008-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2003, 2008-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/go.at b/tests/go.at
index 6cc10c30..0c0c8138 100644
--- a/tests/go.at
+++ b/tests/go.at
@@ -2,7 +2,7 @@
AT_BANNER([Go low level compiling and utility macros.])
-# Copyright (C) 2011-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2011-2017, 2020-2026 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 05cfdb39..6ee91ec9 100644
--- a/tests/local.at
+++ b/tests/local.at
@@ -1,6 +1,6 @@
# M4 macros used in building Autoconf test suites. -*- Autotest -*-
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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 77808f7d..df673aa1 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -1,6 +1,6 @@
## Make Autoconf tests.
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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/m4sh.at b/tests/m4sh.at
index 36961877..47b6fc21 100644
--- a/tests/m4sh.at
+++ b/tests/m4sh.at
@@ -2,7 +2,7 @@
AT_BANNER([M4sh.])
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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/m4sugar.at b/tests/m4sugar.at
index aeddccc8..5c678d46 100644
--- a/tests/m4sugar.at
+++ b/tests/m4sugar.at
@@ -2,7 +2,7 @@
AT_BANNER([M4sugar.])
-# Copyright (C) 2000-2002, 2005-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2002, 2005-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/mktests.pl b/tests/mktests.pl
index 1e19c093..9d358e9d 100644
--- a/tests/mktests.pl
+++ b/tests/mktests.pl
@@ -2,7 +2,7 @@
# Build some of the Autoconf test files.
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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/semantics.at b/tests/semantics.at
index 59464a23..1d061cb7 100644
--- a/tests/semantics.at
+++ b/tests/semantics.at
@@ -2,7 +2,7 @@
AT_BANNER([Semantics.])
-# Copyright (C) 2000-2002, 2004-2007, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2002, 2004-2007, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/statesave.m4 b/tests/statesave.m4
index 9aad1b28..e6c7e828 100644
--- a/tests/statesave.m4
+++ b/tests/statesave.m4
@@ -1,6 +1,6 @@
# statesave.m4 serial 2
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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/suite.at b/tests/suite.at
index 1600bf32..55a180d7 100644
--- a/tests/suite.at
+++ b/tests/suite.at
@@ -1,6 +1,6 @@
# Validation suite for Autoconf -*- Autotest -*-
-# Copyright (C) 2000-2001, 2003-2005, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2003-2005, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/tools.at b/tests/tools.at
index 03f9c1af..8c08abbb 100644
--- a/tests/tools.at
+++ b/tests/tools.at
@@ -2,7 +2,7 @@
AT_BANNER([Executables (autoheader, autoupdate...).])
-# Copyright (C) 2000-2001, 2003-2004, 2006-2017, 2020-2025 Free Software
+# Copyright (C) 2000-2001, 2003-2004, 2006-2017, 2020-2026 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
diff --git a/tests/torture.at b/tests/torture.at
index 0e14315e..3b1d9f08 100644
--- a/tests/torture.at
+++ b/tests/torture.at
@@ -1,6 +1,6 @@
# -*- Autotest -*-
-# Copyright (C) 2000-2017, 2020-2025 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2026 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/wrapper.as b/tests/wrapper.as
index b4c7ea4d..060e3ef8 100644
--- a/tests/wrapper.as
+++ b/tests/wrapper.as
@@ -1,7 +1,7 @@
AS_INIT[]dnl -*- shell-script -*-
# wrapper.as -- running '@wrap_program@' as if it were installed.
# @configure_input@
-# Copyright (C) 2003-2004, 2007, 2009-2017, 2020-2025 Free Software
+# Copyright (C) 2003-2004, 2007, 2009-2017, 2020-2026 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
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