128 files changed, 134 insertions, 130 deletions
diff --git a/LICENSE b/LICENSE
index a876974f..6216377d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -2,7 +2,7 @@ The license below covers all of the code comprising the TXR program.
 For more information, see the METALICENSE file.
 
 TXR:
-   Copyright (C) 2009-2020, Kaz Kylheku.
+   Copyright (C) 2009-2021, Kaz Kylheku.
    All rights reserved.
 
 Linenoise:
diff --git a/LICENSE-CYG b/LICENSE-CYG
index ebeea815..da8eb200 100644
--- a/LICENSE-CYG
+++ b/LICENSE-CYG
@@ -6,11 +6,11 @@ comes from Cygwin. Neither Cygnal nor the GCC redistributable run-time are a
 component of TXR; the TXR source code base contains no portion of these
 libraries, and other ports of TXR to other platforms do not use them.
 
-Cygwin is Copyright (C) 1995-2020 Red Hat Inc. and the Cygnal version
+Cygwin is Copyright (C) 1995-2021 Red Hat Inc. and the Cygnal version
 is distributed and used with TXR in accordance with the Lesser GNU Public
 License (LGPL), Version 3 <https://cygwin.com/COPYING.LIB>.
 
 The Cygnal project is hosted at <http://www.kylheku.com/cygnal>.
 
 The redistributable GCC runtime is also under the Lesser GNU Public License,
-and is Copyright (C) 2020 The Free Software Foundation, Inc.
+and is Copyright (C) 2021 The Free Software Foundation, Inc.
diff --git a/METALICENSE b/METALICENSE
index ce50a8ee..89614d9c 100644
--- a/METALICENSE
+++ b/METALICENSE
@@ -1,4 +1,4 @@
-Copyright (C) 2009-2020, Kaz Kylheku <kaz@kylheku.com>.
+Copyright (C) 2009-2021, Kaz Kylheku <kaz@kylheku.com>.
 All rights reserved.
 
 The document named LICENSE specifies the license for the TXR program,
@@ -29,6 +29,10 @@ and md5.h files. The permission is compatible with the BSD license,
 as it allows unfettered redistribution and use, without any advertizing
 clauses.
 
+SHA-256 routines used in TXR are derived from code which is
+Copyright 2005 Colin Percival, and available under the same two-clause
+BSD license as TXR.
+
 TXR ships with files (y.tab.c, y.tab.h) generated from the file parser.y using
 GNU Bison. The source file parser.y is the original work of Kaz Kylheku, and
 licensed under the same terms as the rest of TXR. The generated files contain
diff --git a/Makefile b/Makefile
index 6749a145..35f95b5c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Copyright 2009-2020
+# Copyright 2009-2021
 # Kaz Kylheku <kaz@kylheku.com>
 # Vancouver, Canada
 # All rights reserved.
diff --git a/alloca.h b/alloca.h
index 6d55245b..423af24f 100644
--- a/alloca.h
+++ b/alloca.h
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/args.c b/args.c
index e7174a1b..796fecaa 100644
--- a/args.c
+++ b/args.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/args.h b/args.h
index 43af4733..ed7e7b7d 100644
--- a/args.h
+++ b/args.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/arith.c b/arith.c
index 971be237..9b940e0c 100644
--- a/arith.c
+++ b/arith.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/arith.h b/arith.h
index 55d14333..c66e6844 100644
--- a/arith.h
+++ b/arith.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2020
+/* Copyright 2012-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/buf.c b/buf.c
index 25805922..f4193a74 100644
--- a/buf.c
+++ b/buf.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/buf.h b/buf.h
index bafd1bd4..683d5438 100644
--- a/buf.h
+++ b/buf.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/cadr.c b/cadr.c
index 0f474a55..9adeb774 100644
--- a/cadr.c
+++ b/cadr.c
@@ -1,6 +1,6 @@
 /* This file is generated by gencadr.txr */
 
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/cadr.h b/cadr.h
index fb5d937c..58efa9d5 100644
--- a/cadr.h
+++ b/cadr.h
@@ -1,6 +1,6 @@
 /* This file is generated by gencadr.txr */
 
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksum.c b/chksum.c
index ad277f82..ad12d7d4 100644
--- a/chksum.c
+++ b/chksum.c
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksum.h b/chksum.h
index 33cc9c67..4ef62001 100644
--- a/chksum.h
+++ b/chksum.h
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksums/crc32.c b/chksums/crc32.c
index a9aa4e81..6bdbe6b0 100644
--- a/chksums/crc32.c
+++ b/chksums/crc32.c
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksums/crc32.h b/chksums/crc32.h
index b764b10a..1e77a51a 100644
--- a/chksums/crc32.h
+++ b/chksums/crc32.h
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/combi.c b/combi.c
index 60655d3d..368ac2df 100644
--- a/combi.c
+++ b/combi.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/combi.h b/combi.h
index d5e15b07..dedbd734 100644
--- a/combi.h
+++ b/combi.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2020
+/* Copyright 2012-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/configure b/configure
index 9940aa4c..88dd6a36 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright 2009-2020
+# Copyright 2009-2021
 # Kaz Kylheku <kaz@kylheku.com>
 # Vancouver, Canada
 # All rights reserved.
diff --git a/debug.c b/debug.c
index 92b8640a..441e80bb 100644
--- a/debug.c
+++ b/debug.c
@@ -1,4 +1,4 @@
-/* Copyright 2011-2020
+/* Copyright 2011-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/debug.h b/debug.h
index 2294c50a..e6ca4c19 100644
--- a/debug.h
+++ b/debug.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2020
+/* Copyright 2012-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/eval.c b/eval.c
index dea5d1d8..0b707e78 100644
--- a/eval.c
+++ b/eval.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/eval.h b/eval.h
index 2791626b..fd6e16bf 100644
--- a/eval.h
+++ b/eval.h
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ffi.c b/ffi.c
index 821c7685..e4652c2c 100644
--- a/ffi.c
+++ b/ffi.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ffi.h b/ffi.h
index c16de4a6..c420f370 100644
--- a/ffi.h
+++ b/ffi.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/filter.c b/filter.c
index d3e9169e..f36cd1a8 100644
--- a/filter.c
+++ b/filter.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/filter.h b/filter.h
index d4b37ea2..d24a4f7d 100644
--- a/filter.h
+++ b/filter.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ftw.c b/ftw.c
index 57790b4e..064dbf1f 100644
--- a/ftw.c
+++ b/ftw.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ftw.h b/ftw.h
index 164bab92..7c289cb0 100644
--- a/ftw.h
+++ b/ftw.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/gc.c b/gc.c
index a58b8260..f3ce3275 100644
--- a/gc.c
+++ b/gc.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/gc.h b/gc.h
index 0c026cbf..8f7b44ae 100644
--- a/gc.h
+++ b/gc.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/glob.c b/glob.c
index a4b8a4e5..0459c207 100644
--- a/glob.c
+++ b/glob.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/glob.h b/glob.h
index 259901dc..32620a6c 100644
--- a/glob.h
+++ b/glob.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/hash.c b/hash.c
index f8a61163..a6772c29 100644
--- a/hash.c
+++ b/hash.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/hash.h b/hash.h
index e272ce45..f9fcb75b 100644
--- a/hash.h
+++ b/hash.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/itypes.c b/itypes.c
index be0833c4..950603dd 100644
--- a/itypes.c
+++ b/itypes.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/itypes.h b/itypes.h
index 5cbc3ea1..7fe0331c 100644
--- a/itypes.h
+++ b/itypes.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/jmp.S b/jmp.S
index 671a793b..cac36363 100644
--- a/jmp.S
+++ b/jmp.S
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lex.yy.c.shipped b/lex.yy.c.shipped
index f684c84c..519bae2c 100644
--- a/lex.yy.c.shipped
+++ b/lex.yy.c.shipped
@@ -3466,7 +3466,7 @@ goto find_rule; \
 #define YY_MORE_ADJ 0
 #define YY_RESTORE_YY_MORE_OFFSET
 #line 1 "parser.l"
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lib.c b/lib.c
index 462e19a8..c35ef20f 100644
--- a/lib.c
+++ b/lib.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lib.h b/lib.h
index f6cc8975..e9c1bd16 100644
--- a/lib.h
+++ b/lib.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index 50830bef..ed0cc5d1 100644
--- a/linenoise/linenoise.c
+++ b/linenoise/linenoise.c
@@ -14,7 +14,7 @@
  *
  * Copyright (c) 2010-2015, Salvatore Sanfilippo <antirez at gmail dot com>
  * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
- * Copyright (c) 2015-2020, Kaz Kylheku <kaz at kylheku dot com>
+ * Copyright (c) 2015-2021, Kaz Kylheku <kaz at kylheku dot com>
  *
  * All rights reserved.
  *
diff --git a/linenoise/linenoise.h b/linenoise/linenoise.h
index da6e93de..151ee99c 100644
--- a/linenoise/linenoise.h
+++ b/linenoise/linenoise.h
@@ -9,7 +9,7 @@
  *
  * Copyright (c) 2010-2015, Salvatore Sanfilippo <antirez at gmail dot com>
  * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
- * Copyright (c) 2015-2020, Kaz Kylheku <kaz at kylheku dot com>
+ * Copyright (c) 2015-2021, Kaz Kylheku <kaz at kylheku dot com>
  *
  * All rights reserved.
  *
diff --git a/lisplib.c b/lisplib.c
index 6319f040..28865560 100644
--- a/lisplib.c
+++ b/lisplib.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lisplib.h b/lisplib.h
index 5d6a08e8..040ddfbc 100644
--- a/lisplib.h
+++ b/lisplib.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/match.c b/match.c
index 606c6d0c..3846060d 100644
--- a/match.c
+++ b/match.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/match.h b/match.h
index 26eee251..fb2f7e90 100644
--- a/match.h
+++ b/match.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.c b/parser.c
index 0ccee3c1..d0c60578 100644
--- a/parser.c
+++ b/parser.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.h b/parser.h
index 85bfca2f..001efc2b 100644
--- a/parser.h
+++ b/parser.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.l b/parser.l
index 90d961c1..8536a01e 100644
--- a/parser.l
+++ b/parser.l
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.y b/parser.y
index 9c352bba..21b6945d 100644
--- a/parser.y
+++ b/parser.y
@@ -1,6 +1,6 @@
 %{
 
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/protsym.c b/protsym.c
index 7695aa67..07def32b 100644
--- a/protsym.c
+++ b/protsym.c
@@ -1,6 +1,6 @@
 /* This file is generated by genprotsym.txr */
 
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/rand.c b/rand.c
index 133b3d2a..909ab9dd 100644
--- a/rand.c
+++ b/rand.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/rand.h b/rand.h
index 1026e518..d1b253c6 100644
--- a/rand.h
+++ b/rand.h
@@ -1,4 +1,4 @@
-/* Copyright 2011-2020
+/* Copyright 2011-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/regex.c b/regex.c
index 27961970..e4a1e810 100644
--- a/regex.c
+++ b/regex.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/regex.h b/regex.h
index 3c60f633..d18dacc0 100644
--- a/regex.h
+++ b/regex.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/share/txr/stdlib/asm.tl b/share/txr/stdlib/asm.tl
index 9ded42c0..b4a739fe 100644
--- a/share/txr/stdlib/asm.tl
+++ b/share/txr/stdlib/asm.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2020
+;; Copyright 2018-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/awk.tl b/share/txr/stdlib/awk.tl
index ec9e77e4..d92bfea8 100644
--- a/share/txr/stdlib/awk.tl
+++ b/share/txr/stdlib/awk.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/build.tl b/share/txr/stdlib/build.tl
index 527460be..7f0d91c9 100644
--- a/share/txr/stdlib/build.tl
+++ b/share/txr/stdlib/build.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/cadr.tl b/share/txr/stdlib/cadr.tl
index 4c334562..6648b145 100644
--- a/share/txr/stdlib/cadr.tl
+++ b/share/txr/stdlib/cadr.tl
@@ -1,6 +1,6 @@
 ;; This file is generated by gencadr.txr
 
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/compiler.tl b/share/txr/stdlib/compiler.tl
index d3f45555..123c179f 100644
--- a/share/txr/stdlib/compiler.tl
+++ b/share/txr/stdlib/compiler.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2020
+;; Copyright 2018-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/conv.tl b/share/txr/stdlib/conv.tl
index 21e76815..5cd799f3 100644
--- a/share/txr/stdlib/conv.tl
+++ b/share/txr/stdlib/conv.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/copy-file.tl b/share/txr/stdlib/copy-file.tl
index 5c67a254..198424af 100644
--- a/share/txr/stdlib/copy-file.tl
+++ b/share/txr/stdlib/copy-file.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2020
+;; Copyright 2018-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/debugger.tl b/share/txr/stdlib/debugger.tl
index 225d8207..8102eb24 100644
--- a/share/txr/stdlib/debugger.tl
+++ b/share/txr/stdlib/debugger.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019-2020
+;; Copyright 2019-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/defset.tl b/share/txr/stdlib/defset.tl
index 009a9ef8..15b44411 100644
--- a/share/txr/stdlib/defset.tl
+++ b/share/txr/stdlib/defset.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019-2020
+;; Copyright 2019-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/doloop.tl b/share/txr/stdlib/doloop.tl
index 5cccd861..56540d9e 100644
--- a/share/txr/stdlib/doloop.tl
+++ b/share/txr/stdlib/doloop.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/each-prod.tl b/share/txr/stdlib/each-prod.tl
index 67420771..7b7150c0 100644
--- a/share/txr/stdlib/each-prod.tl
+++ b/share/txr/stdlib/each-prod.tl
@@ -1,4 +1,4 @@
-;; Copyright 2020
+;; Copyright 2020-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/error.tl b/share/txr/stdlib/error.tl
index 1e946732..0425f02c 100644
--- a/share/txr/stdlib/error.tl
+++ b/share/txr/stdlib/error.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/except.tl b/share/txr/stdlib/except.tl
index 15d7a365..60f2fe51 100644
--- a/share/txr/stdlib/except.tl
+++ b/share/txr/stdlib/except.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/ffi.tl b/share/txr/stdlib/ffi.tl
index a5748f3f..e171cb47 100644
--- a/share/txr/stdlib/ffi.tl
+++ b/share/txr/stdlib/ffi.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/getopts.tl b/share/txr/stdlib/getopts.tl
index 5a937f84..99ce9f9b 100644
--- a/share/txr/stdlib/getopts.tl
+++ b/share/txr/stdlib/getopts.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/getput.tl b/share/txr/stdlib/getput.tl
index daf08b1e..7f9c2af2 100644
--- a/share/txr/stdlib/getput.tl
+++ b/share/txr/stdlib/getput.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/hash.tl b/share/txr/stdlib/hash.tl
index 96d2e705..b9010500 100644
--- a/share/txr/stdlib/hash.tl
+++ b/share/txr/stdlib/hash.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/ifa.tl b/share/txr/stdlib/ifa.tl
index c1c32538..f643cf92 100644
--- a/share/txr/stdlib/ifa.tl
+++ b/share/txr/stdlib/ifa.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/keyparams.tl b/share/txr/stdlib/keyparams.tl
index 7dd38de2..e1eba2d0 100644
--- a/share/txr/stdlib/keyparams.tl
+++ b/share/txr/stdlib/keyparams.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/op.tl b/share/txr/stdlib/op.tl
index 9b3cf346..a806095d 100644
--- a/share/txr/stdlib/op.tl
+++ b/share/txr/stdlib/op.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/package.tl b/share/txr/stdlib/package.tl
index d399dd81..63c13f5e 100644
--- a/share/txr/stdlib/package.tl
+++ b/share/txr/stdlib/package.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/param.tl b/share/txr/stdlib/param.tl
index e656eadc..5f3c1b42 100644
--- a/share/txr/stdlib/param.tl
+++ b/share/txr/stdlib/param.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019-2020
+;; Copyright 2019-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/path-test.tl b/share/txr/stdlib/path-test.tl
index b57e13dd..fb132f7f 100644
--- a/share/txr/stdlib/path-test.tl
+++ b/share/txr/stdlib/path-test.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/place.tl b/share/txr/stdlib/place.tl
index 4e2c7904..ac403ccb 100644
--- a/share/txr/stdlib/place.tl
+++ b/share/txr/stdlib/place.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/pmac.tl b/share/txr/stdlib/pmac.tl
index 48bb3386..e439220c 100644
--- a/share/txr/stdlib/pmac.tl
+++ b/share/txr/stdlib/pmac.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/quips.tl b/share/txr/stdlib/quips.tl
index 58453f5b..1b4cb0e2 100644
--- a/share/txr/stdlib/quips.tl
+++ b/share/txr/stdlib/quips.tl
@@ -1,4 +1,4 @@
-;; Copyright 2020
+;; Copyright 2020-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/save-exe.tl b/share/txr/stdlib/save-exe.tl
index 4823cd4e..e645c10a 100644
--- a/share/txr/stdlib/save-exe.tl
+++ b/share/txr/stdlib/save-exe.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019-2020
+;; Copyright 2019-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/socket.tl b/share/txr/stdlib/socket.tl
index 54df9758..0a872d12 100644
--- a/share/txr/stdlib/socket.tl
+++ b/share/txr/stdlib/socket.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/stream-wrap.tl b/share/txr/stdlib/stream-wrap.tl
index ba5a5cb2..042af813 100644
--- a/share/txr/stdlib/stream-wrap.tl
+++ b/share/txr/stdlib/stream-wrap.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2020
+;; Copyright 2017-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/struct.tl b/share/txr/stdlib/struct.tl
index aa518444..64cd2e76 100644
--- a/share/txr/stdlib/struct.tl
+++ b/share/txr/stdlib/struct.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/tagbody.tl b/share/txr/stdlib/tagbody.tl
index de2a8829..ed670871 100644
--- a/share/txr/stdlib/tagbody.tl
+++ b/share/txr/stdlib/tagbody.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/termios.tl b/share/txr/stdlib/termios.tl
index d8936633..93fcc958 100644
--- a/share/txr/stdlib/termios.tl
+++ b/share/txr/stdlib/termios.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/trace.tl b/share/txr/stdlib/trace.tl
index a9afcd1d..8c0fbd4c 100644
--- a/share/txr/stdlib/trace.tl
+++ b/share/txr/stdlib/trace.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2020
+;; Copyright 2016-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/txr-case.tl b/share/txr/stdlib/txr-case.tl
index 5a507fb1..4f51ea48 100644
--- a/share/txr/stdlib/txr-case.tl
+++ b/share/txr/stdlib/txr-case.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/type.tl b/share/txr/stdlib/type.tl
index d784b893..a97ac6bd 100644
--- a/share/txr/stdlib/type.tl
+++ b/share/txr/stdlib/type.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/vm-param.tl b/share/txr/stdlib/vm-param.tl
index 0e278291..b8b8d77f 100644
--- a/share/txr/stdlib/vm-param.tl
+++ b/share/txr/stdlib/vm-param.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2020
+;; Copyright 2018-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/with-resources.tl b/share/txr/stdlib/with-resources.tl
index 5c1b8130..9d4a89c9 100644
--- a/share/txr/stdlib/with-resources.tl
+++ b/share/txr/stdlib/with-resources.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/with-stream.tl b/share/txr/stdlib/with-stream.tl
index d79ff5da..2904ea3d 100644
--- a/share/txr/stdlib/with-stream.tl
+++ b/share/txr/stdlib/with-stream.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/share/txr/stdlib/yield.tl b/share/txr/stdlib/yield.tl
index 947c3a1d..866ab8fb 100644
--- a/share/txr/stdlib/yield.tl
+++ b/share/txr/stdlib/yield.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2020
+;; Copyright 2015-2021
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/signal.c b/signal.c
index c238514e..53e4e499 100644
--- a/signal.c
+++ b/signal.c
@@ -1,4 +1,4 @@
-/* Copyright 2013-2020
+/* Copyright 2013-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/signal.h b/signal.h
index 3a83cbe0..e884d225 100644
--- a/signal.h
+++ b/signal.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2020
+/* Copyright 2013-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/socket.c b/socket.c
index 3a28fd3f..482f1b2b 100644
--- a/socket.c
+++ b/socket.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/socket.h b/socket.h
index 0e803eef..aca7f72c 100644
--- a/socket.h
+++ b/socket.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/stream.c b/stream.c
index 5ece9d9d..ef2c0a29 100644
--- a/stream.c
+++ b/stream.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/stream.h b/stream.h
index 197be303..9a1e9d4e 100644
--- a/stream.h
+++ b/stream.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/struct.c b/struct.c
index f897a611..529a930d 100644
--- a/struct.c
+++ b/struct.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/struct.h b/struct.h
index 74ed1451..0aa446e1 100644
--- a/struct.h
+++ b/struct.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/strudel.c b/strudel.c
index d362c335..e88f175c 100644
--- a/strudel.c
+++ b/strudel.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/strudel.h b/strudel.h
index c2da46f9..6dec0376 100644
--- a/strudel.h
+++ b/strudel.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2020
+/* Copyright 2017-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/sysif.c b/sysif.c
index 45bbde17..edf3d185 100644
--- a/sysif.c
+++ b/sysif.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2020
+/* Copyright 2010-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/sysif.h b/sysif.h
index 3f445f0a..811f76a0 100644
--- a/sysif.h
+++ b/sysif.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2020
+/* Copyright 2013-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/syslog.c b/syslog.c
index ebb6cdc9..efe20565 100644
--- a/syslog.c
+++ b/syslog.c
@@ -1,4 +1,4 @@
-/* Copyright 2013-2020
+/* Copyright 2013-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/syslog.h b/syslog.h
index 23a03d21..11d6efc2 100644
--- a/syslog.h
+++ b/syslog.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2020
+/* Copyright 2013-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/termios.c b/termios.c
index cce146c2..a116791d 100644
--- a/termios.c
+++ b/termios.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/termios.h b/termios.h
index 5fd8b2ea..7c537b63 100644
--- a/termios.h
+++ b/termios.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2020
+/* Copyright 2016-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/time.c b/time.c
index 85b98d0a..2c2285ef 100644
--- a/time.c
+++ b/time.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/time.h b/time.h
index b33531d6..4b04fd6a 100644
--- a/time.h
+++ b/time.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2020
+/* Copyright 2015-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/tree.c b/tree.c
index db074654..e93708fe 100644
--- a/tree.c
+++ b/tree.c
@@ -1,4 +1,4 @@
-/* Copyright 2019-2020
+/* Copyright 2019-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/tree.h b/tree.h
index da72c010..6d35868a 100644
--- a/tree.h
+++ b/tree.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/txr.1 b/txr.1
index 97c9e386..744998e1 100644
--- a/txr.1
+++ b/txr.1
@@ -1,5 +1,5 @@
 .\" t '\" vim:set syntax=groff:
-.\" Copyright (C) 2009-2020 Kaz Kylheku <kaz@kylheku.com>.
+.\" Copyright (C) 2009-2021 Kaz Kylheku <kaz@kylheku.com>.
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
diff --git a/txr.c b/txr.c
index d0fbcfaa..ccf7042b 100644
--- a/txr.c
+++ b/txr.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
@@ -75,7 +75,7 @@ static void help(void)
   val text = lit(
 "\n"
 "TXR Version ~a\n"
-"Copyright 2009-2020 Kaz Kylheku <kaz@kylheku.com>\n"
+"Copyright 2009-2021 Kaz Kylheku <kaz@kylheku.com>\n"
 "\n"
 "Usage:\n"
 "\n"
diff --git a/txr.h b/txr.h
index 96196257..6df9ed69 100644
--- a/txr.h
+++ b/txr.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/unwind.c b/unwind.c
index 252fe117..75fb3bcc 100644
--- a/unwind.c
+++ b/unwind.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/unwind.h b/unwind.h
index efd51f4d..35c2e017 100644
--- a/unwind.h
+++ b/unwind.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/utf8.c b/utf8.c
index 39d1e1c4..8cb81749 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/utf8.h b/utf8.h
index 6d775451..22287f2d 100644
--- a/utf8.h
+++ b/utf8.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vm.c b/vm.c
index bae48a4f..05c78dbc 100644
--- a/vm.c
+++ b/vm.c
@@ -1,4 +1,4 @@
-/* Copyright 2018-2020
+/* Copyright 2018-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vm.h b/vm.h
index 427ffe65..9dd5bff2 100644
--- a/vm.h
+++ b/vm.h
@@ -1,4 +1,4 @@
-/* Copyright 2018-2020
+/* Copyright 2018-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vmop.h b/vmop.h
index aafbe6e5..014e098b 100644
--- a/vmop.h
+++ b/vmop.h
@@ -1,4 +1,4 @@
-/* Copyright 2018-2020
+/* Copyright 2018-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/win/cleansvg.txr b/win/cleansvg.txr
index 4ff50d32..409f5514 100755
--- a/win/cleansvg.txr
+++ b/win/cleansvg.txr
@@ -26,7 +26,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 
 <!-- TXR Logo
-     Copyright 2017-2020 Kaz Kylheku <kaz@@kylheku.com> -->
+     Copyright 2017-2021 Kaz Kylheku <kaz@@kylheku.com> -->
 
 <svg xmlns="@xmlns"
      viewBox="0 0 @width @height"
diff --git a/y.tab.c.shipped b/y.tab.c.shipped
index a148a9b3..64342a65 100644
--- a/y.tab.c.shipped
+++ b/y.tab.c.shipped
@@ -69,7 +69,7 @@
 #line 1 "parser.y"
 
 
-/* Copyright 2009-2020
+/* Copyright 2009-2021
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.