diff --git a/AUTHORS b/AUTHORS
index 8ba23355..b0ddb150 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -24,7 +24,7 @@ and nasty bugs.
-----
-Copyright (C) 1998-2015 Free Software Foundation, Inc.
+Copyright (C) 1998-2015, 2018 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
diff --git a/ChangeLog-2012 b/ChangeLog-2012
index abc1adb6..254f3d29 100644
--- a/ChangeLog-2012
+++ b/ChangeLog-2012
@@ -26733,8 +26733,8 @@
-----
- Copyright (C) 1987-1988, 1991-2015 Free Software Foundation,
- Inc.
+ Copyright (C) 1987-1988, 1991-2015, 2018 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 b6135cbd..d03a65b0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
## Process this file with automake to produce Makefile.in.
-# Copyright (C) 2001-2015 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018 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 fed9077f..4484cfc4 100644
--- a/NEWS
+++ b/NEWS
@@ -2762,7 +2762,7 @@ Output file does not redefine const for C++.
-----
-Copyright (C) 1995-2015 Free Software Foundation, Inc.
+Copyright (C) 1995-2015, 2018 Free Software Foundation, Inc.
This file is part of Bison, the GNU Parser Generator.
diff --git a/PACKAGING b/PACKAGING
index 1110aa32..2abda4f2 100644
--- a/PACKAGING
+++ b/PACKAGING
@@ -36,7 +36,7 @@ to the bison package.
-----
-Copyright (C) 2002, 2005, 2009-2015 Free Software Foundation, Inc.
+Copyright (C) 2002, 2005, 2009-2015, 2018 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
diff --git a/README b/README
index 9cdf33d3..1ae4b98c 100644
--- a/README
+++ b/README
@@ -44,7 +44,7 @@ End:
-----
-Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015 Free Software
+Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2015, 2018 Free Software
Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
diff --git a/README-alpha b/README-alpha
index f0aa3c97..8c1742ce 100644
--- a/README-alpha
+++ b/README-alpha
@@ -12,7 +12,7 @@ the problems you encounter.
-----
-Copyright (C) 2002, 2004, 2009-2015 Free Software Foundation, Inc.
+Copyright (C) 2002, 2004, 2009-2015, 2018 Free Software Foundation, Inc.
This file is part of GNU Bison.
diff --git a/README-hacking b/README-hacking
index 99dc76ab..fcc6102a 100644
--- a/README-hacking
+++ b/README-hacking
@@ -448,7 +448,7 @@ Push these changes.
-----
-Copyright (C) 2002-2005, 2007-2015 Free Software Foundation, Inc.
+Copyright (C) 2002-2005, 2007-2015, 2018 Free Software Foundation, Inc.
This file is part of GNU Bison.
diff --git a/THANKS b/THANKS
index c19cc799..52298d08 100644
--- a/THANKS
+++ b/THANKS
@@ -175,7 +175,7 @@ End:
-----
-Copyright (C) 2000-2015 Free Software Foundation, Inc.
+Copyright (C) 2000-2015, 2018 Free Software Foundation, Inc.
This file is part of Bison, the GNU Parser Generator.
diff --git a/TODO b/TODO
index 7d4a5fb4..c25df084 100644
--- a/TODO
+++ b/TODO
@@ -369,7 +369,8 @@ End:
-----
-Copyright (C) 2001-2004, 2006, 2008-2015 Free Software Foundation, Inc.
+Copyright (C) 2001-2004, 2006, 2008-2015, 2018 Free Software Foundation,
+Inc.
This file is part of Bison, the GNU Compiler Compiler.
diff --git a/bootstrap.conf b/bootstrap.conf
index 8150e682..3e900b33 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,6 +1,6 @@
# Bootstrap configuration.
-# Copyright (C) 2006-2015 Free Software Foundation, Inc.
+# Copyright (C) 2006-2015, 2018 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 9b0b06f3..ba9b9494 100644
--- a/build-aux/Darwin.valgrind
+++ b/build-aux/Darwin.valgrind
@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2015 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018 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 d9c9667a..a40719fb 100644
--- a/build-aux/Linux.valgrind
+++ b/build-aux/Linux.valgrind
@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2015 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018 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 23a68c82..70a900ff 100644
--- a/build-aux/local.mk
+++ b/build-aux/local.mk
@@ -1,4 +1,4 @@
-# Copyright (C) 2000-2015 Free Software Foundation, Inc.
+# Copyright (C) 2000-2015, 2018 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 901ff05b..8946378a 100755
--- a/build-aux/update-b4-copyright
+++ b/build-aux/update-b4-copyright
@@ -3,7 +3,7 @@
# Update b4_copyright invocations or b4_copyright_years definitions to
# include the current year.
-# Copyright (C) 2009-2015 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015, 2018 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 f2adedf7..da9ac3a1 100755
--- a/build-aux/update-package-copyright-year
+++ b/build-aux/update-package-copyright-year
@@ -2,7 +2,7 @@
# In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.
-# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# Copyright (C) 2010-2015, 2018 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 7d0fe9a5..c1b30ad7 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,5 @@
# Customize maint.mk -*- makefile -*-
-# Copyright (C) 2008-2015 Free Software Foundation, Inc.
+# Copyright (C) 2008-2015, 2018 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 da94e969..5412f6b9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
# Configure template for GNU Bison. -*-Autoconf-*-
#
-# Copyright (C) 2001-2015 Free Software Foundation, Inc.
+# Copyright (C) 2001-2015, 2018 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
@@ -26,7 +26,7 @@ m4_pattern_forbid([^gl_[A-Z]])
AC_INIT([GNU Bison],
m4_esyscmd([build-aux/git-version-gen .tarball-version]),
[bug-bison@gnu.org])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2015])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2018])
AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
[The copyright year for this package])
diff --git a/data/README b/data/README
index 4b3e5561..629599cc 100644
--- a/data/README
+++ b/data/README
@@ -52,7 +52,7 @@ into various formats.
-----
-Copyright (C) 2002, 2008-2015 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2015, 2018 Free Software Foundation, Inc.
This file is part of GNU Bison.
diff --git a/data/bison.m4 b/data/bison.m4
index 2000d0f6..42bb67b8 100644
--- a/data/bison.m4
+++ b/data/bison.m4
@@ -2,7 +2,7 @@
# Language-independent M4 Macros for Bison.
-# Copyright (C) 2002, 2004-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2015, 2018 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/c++-skel.m4 b/data/c++-skel.m4
index 9117262c..3cd56789 100644
--- a/data/c++-skel.m4
+++ b/data/c++-skel.m4
@@ -2,7 +2,8 @@
# C++ skeleton dispatching for Bison.
-# Copyright (C) 2006-2007, 2009-2015 Free Software Foundation, Inc.
+# Copyright (C) 2006-2007, 2009-2015, 2018 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/c-like.m4 b/data/c-like.m4
index ff648a7d..26bab42e 100644
--- a/data/c-like.m4
+++ b/data/c-like.m4
@@ -2,7 +2,7 @@
# Common code for C-like languages (C, C++, Java, etc.)
-# Copyright (C) 2012-2015 Free Software Foundation, Inc.
+# Copyright (C) 2012-2015, 2018 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/c-skel.m4 b/data/c-skel.m4
index 51fad177..cb9a7a21 100644
--- a/data/c-skel.m4
+++ b/data/c-skel.m4
@@ -2,7 +2,8 @@
# C skeleton dispatching for Bison.
-# Copyright (C) 2006-2007, 2009-2015 Free Software Foundation, Inc.
+# Copyright (C) 2006-2007, 2009-2015, 2018 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/c.m4 b/data/c.m4
index 738244d4..f2006b34 100644
--- a/data/c.m4
+++ b/data/c.m4
@@ -2,7 +2,7 @@
# C M4 Macros for Bison.
-# Copyright (C) 2002, 2004-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2015, 2018 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/glr.c b/data/glr.c
index f70069ea..06adde69 100644
--- a/data/glr.c
+++ b/data/glr.c
@@ -2,7 +2,7 @@
# GLR skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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
@@ -198,7 +198,7 @@ m4_if(b4_skeleton, ["glr.c"],
[b4_defines_if(
[b4_output_begin([b4_spec_defines_file])
b4_copyright([Skeleton interface for Bison GLR parsers in C],
- [2002-2015])[
+ [2002-2015, 2018])[
]b4_cpp_guard_open([b4_spec_defines_file])[
]b4_shared_declarations[
@@ -213,7 +213,7 @@ 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])[
+ [2002-2015, 2018])[
/* C GLR parser skeleton written by Paul Hilfinger. */
diff --git a/data/glr.cc b/data/glr.cc
index 5235d44b..2ce14bc0 100644
--- a/data/glr.cc
+++ b/data/glr.cc
@@ -1,6 +1,6 @@
# C++ GLR skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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
@@ -329,7 +329,7 @@ b4_percent_define_flag_if([[global_tokens_and_yystype]],
b4_defines_if(
[b4_output_begin([b4_spec_defines_file])
b4_copyright([Skeleton interface for Bison GLR parsers in C++],
- [2002-2015])[
+ [2002-2015, 2018])[
// C++ GLR parser skeleton written by Akim Demaille.
diff --git a/data/java-skel.m4 b/data/java-skel.m4
index 9b5cb249..79c3f536 100644
--- a/data/java-skel.m4
+++ b/data/java-skel.m4
@@ -2,7 +2,7 @@
# Java skeleton dispatching for Bison.
-# Copyright (C) 2007, 2009-2015 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2009-2015, 2018 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/java.m4 b/data/java.m4
index b319626a..5ac145c4 100644
--- a/data/java.m4
+++ b/data/java.m4
@@ -2,7 +2,7 @@
# Java language support for Bison
-# Copyright (C) 2007-2015 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018 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/lalr1.cc b/data/lalr1.cc
index 3013570e..a4feab0a 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -1,6 +1,6 @@
# C++ skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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
@@ -131,7 +131,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))])])
m4_pushdef([b4_copyright_years],
- [2002-2015])
+ [2002-2015, 2018])
m4_define([b4_parser_class_name],
[b4_percent_define_get([[parser_class_name]])])
diff --git a/data/lalr1.java b/data/lalr1.java
index 670ea013..7bf8e7fc 100644
--- a/data/lalr1.java
+++ b/data/lalr1.java
@@ -1,6 +1,6 @@
# Java skeleton for Bison -*- autoconf -*-
-# Copyright (C) 2007-2015 Free Software Foundation, Inc.
+# Copyright (C) 2007-2015, 2018 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
@@ -84,7 +84,7 @@ m4_define([b4_define_state],[[
b4_output_begin([b4_parser_file_name])
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
- [2007-2015])
+ [2007-2015, 2018])
b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
])[/* First part of user declarations. */
diff --git a/data/local.mk b/data/local.mk
index 9b0b0680..ea097aab 100644
--- a/data/local.mk
+++ b/data/local.mk
@@ -1,4 +1,4 @@
-## Copyright (C) 2002, 2005-2015 Free Software Foundation, Inc.
+## Copyright (C) 2002, 2005-2015, 2018 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/location.cc b/data/location.cc
index e690094b..3cc949df 100644
--- a/data/location.cc
+++ b/data/location.cc
@@ -1,6 +1,6 @@
# C++ skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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 +16,7 @@
# along with this program. If not, see .
m4_pushdef([b4_copyright_years],
- [2002-2015])
+ [2002-2015, 2018])
# b4_position_define
# ------------------
diff --git a/data/stack.hh b/data/stack.hh
index a91546a3..c79f0833 100644
--- a/data/stack.hh
+++ b/data/stack.hh
@@ -1,6 +1,6 @@
# C++ skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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 +16,7 @@
# along with this program. If not, see .
m4_pushdef([b4_copyright_years],
- [2002-2015])
+ [2002-2015, 2018])
# b4_stack_define
# ---------------
diff --git a/data/variant.hh b/data/variant.hh
index f918e34c..5cabd448 100644
--- a/data/variant.hh
+++ b/data/variant.hh
@@ -1,6 +1,6 @@
# C++ skeleton for Bison
-# Copyright (C) 2002-2015 Free Software Foundation, Inc.
+# Copyright (C) 2002-2015, 2018 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/xslt/bison.xsl b/data/xslt/bison.xsl
index 9e60ad99..9f9132b9 100644
--- a/data/xslt/bison.xsl
+++ b/data/xslt/bison.xsl
@@ -3,7 +3,7 @@