diff --git a/ChangeLog b/ChangeLog
index 0189729..6ee4ea4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2020-01-01  Ben Elliston  <bje@gnu.org>
+
+	* config.guess: Update copyright years.
+	* config.sub: Likewise.
+	* doc/config.guess.1: Regenerate.
+	* doc/config.sub.1: Likewise.
+
 2019-12-21  Ben Elliston  <bje@gnu.org>
 
 	* config.guess (set_cc_for_build): Prevent multiple calls by
diff --git a/config.guess b/config.guess
index 95b16c7..45001cf 100755
--- a/config.guess
+++ b/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2019 Free Software Foundation, Inc.
+#   Copyright 1992-2020 Free Software Foundation, Inc.
 
-timestamp='2019-12-21'
+timestamp='2020-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2019 Free Software Foundation, Inc.
+Copyright 1992-2020 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
diff --git a/config.sub b/config.sub
index 0f2234c..f02d43a 100755
--- a/config.sub
+++ b/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2019 Free Software Foundation, Inc.
+#   Copyright 1992-2020 Free Software Foundation, Inc.
 
-timestamp='2019-06-30'
+timestamp='2020-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -67,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2019 Free Software Foundation, Inc.
+Copyright 1992-2020 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
diff --git a/doc/config.guess.1 b/doc/config.guess.1
index 73c09e5..a808810 100644
--- a/doc/config.guess.1
+++ b/doc/config.guess.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.6.
-.TH CONFIG.GUESS "1" "January 2019" "config.guess (2019-01-01)" "User Commands"
+.TH CONFIG.GUESS "1" "January 2020" "config.guess (2020-01-01)" "User Commands"
 .SH NAME
 config.guess \- guess the build system triplet
 .SH SYNOPSIS
@@ -41,7 +41,7 @@ Report bugs and patches to <config\-patches@gnu.org>.
 .br
 Originally written by Per Bothner.
 .br
-Copyright 1992\-2019 Free Software Foundation, Inc.
+Copyright 1992\-2020 Free Software Foundation, Inc.
 .PP
 .br
 This is free software; see the source for copying conditions.  There is NO
diff --git a/doc/config.sub.1 b/doc/config.sub.1
index d0b5552..07cf74d 100644
--- a/doc/config.sub.1
+++ b/doc/config.sub.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.6.
-.TH CONFIG.SUB "1" "January 2019" "config.sub (2019-01-01)" "User Commands"
+.TH CONFIG.SUB "1" "January 2020" "config.sub (2020-01-01)" "User Commands"
 .SH NAME
 config.sub \- validate and canonicalize a configuration triplet
 .SH SYNOPSIS
@@ -20,7 +20,7 @@ print version number, then exit
 .SH "REPORTING BUGS"
 Report bugs and patches to <config\-patches@gnu.org>.
 .SH COPYRIGHT
-Copyright 1992\-2019 Free Software Foundation, Inc.
+Copyright 1992\-2020 Free Software Foundation, Inc.
 .PP
 .br
 This is free software; see the source for copying conditions.  There is NO