Copyright year bump 2020.

* LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c,
args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h,
chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c,
combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c,
ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c,
glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c,
lib.h, linenoise/linenoise.c, linenoise/linenoise.h,
lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h,
parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c,
regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl,
share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl,
share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl,
share/txr/stdlib/debugger.tl, share/txr/stdlib/defset.tl,
share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl,
share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl,
share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl,
share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl,
share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl,
share/txr/stdlib/package.tl, share/txr/stdlib/param.tl,
share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl,
share/txr/stdlib/pmac.tl, share/txr/stdlib/save-exe.tl,
share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl,
share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl,
share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl,
share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl,
share/txr/stdlib/vm-param.tl,
share/txr/stdlib/with-resources.tl,
share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl,
signal.c, signal.h, socket.c, socket.h, stream.c, stream.h,
struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h,
syslog.c, syslog.h, termios.c, termios.h, tree.c, tree.h,
txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c,
vm.h, vmop.h, win/cleansvg.txr: Extended copyright notices
to 2020.

121 files changed, 123 insertions, 123 deletions

diff --git a/LICENSE b/LICENSE
index 73f9e01c..a876974f 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) 2009-2019, Kaz Kylheku.
+   Copyright (C) 2009-2020, Kaz Kylheku.
    All rights reserved.
 
 Linenoise:
diff --git a/LICENSE-CYG b/LICENSE-CYG
index a605f53d..ebeea815 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) 1995-2019 Red Hat Inc. and the Cygnal version
+Cygwin is Copyright (C) 1995-2020 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) 2019 The Free Software Foundation, Inc.
+and is Copyright (C) 2020 The Free Software Foundation, Inc.
diff --git a/METALICENSE b/METALICENSE
index 169c28d8..88b9cfb2 100644
--- a/METALICENSE
+++ b/METALICENSE
@@ -1,4 +1,4 @@
-Copyright (C) 2009-2019, Kaz Kylheku <kaz@kylheku.com>.
+Copyright (C) 2009-2020, Kaz Kylheku <kaz@kylheku.com>.
 All rights reserved.
 
 The document named LICENSE specifies the license for the TXR program,
diff --git a/Makefile b/Makefile
index 0aaf7494..44b3f8a3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Copyright 2009-2019
+# Copyright 2009-2020
 # Kaz Kylheku <kaz@kylheku.com>
 # Vancouver, Canada
 # All rights reserved.
diff --git a/alloca.h b/alloca.h
index 93f232d3..6d55245b 100644
--- a/alloca.h
+++ b/alloca.h
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/args.c b/args.c
index dabe85e5..3a1319f3 100644
--- a/args.c
+++ b/args.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/args.h b/args.h
index 99048538..e721629c 100644
--- a/args.h
+++ b/args.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/arith.c b/arith.c
index ec4f0eb4..ed559a26 100644
--- a/arith.c
+++ b/arith.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/arith.h b/arith.h
index 4d4d0fd5..cf352040 100644
--- a/arith.h
+++ b/arith.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2019
+/* Copyright 2012-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/buf.c b/buf.c
index fc32e199..b034e266 100644
--- a/buf.c
+++ b/buf.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/buf.h b/buf.h
index a7379f68..578bc5aa 100644
--- a/buf.h
+++ b/buf.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/cadr.c b/cadr.c
index affbba4f..97cebedf 100644
--- a/cadr.c
+++ b/cadr.c
@@ -1,6 +1,6 @@
 /* This file is generated by gencadr.txr */
 
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/cadr.h b/cadr.h
index 84ab8ba8..fb5d937c 100644
--- a/cadr.h
+++ b/cadr.h
@@ -1,6 +1,6 @@
 /* This file is generated by gencadr.txr */
 
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksum.c b/chksum.c
index 4af08d47..b4404c31 100644
--- a/chksum.c
+++ b/chksum.c
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksum.h b/chksum.h
index 6c5f1312..6ec364e5 100644
--- a/chksum.h
+++ b/chksum.h
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksums/crc32.c b/chksums/crc32.c
index 74b9ece7..a9aa4e81 100644
--- a/chksums/crc32.c
+++ b/chksums/crc32.c
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/chksums/crc32.h b/chksums/crc32.h
index f461e42d..b764b10a 100644
--- a/chksums/crc32.h
+++ b/chksums/crc32.h
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/combi.c b/combi.c
index e63cfffb..75a98956 100644
--- a/combi.c
+++ b/combi.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/combi.h b/combi.h
index fbd90d52..d5e15b07 100644
--- a/combi.h
+++ b/combi.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2019
+/* Copyright 2012-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/configure b/configure
index 6aba3dbc..a8d7edfd 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright 2009-2019
+# Copyright 2009-2020
 # Kaz Kylheku <kaz@kylheku.com>
 # Vancouver, Canada
 # All rights reserved.
diff --git a/debug.c b/debug.c
index 26a2572b..47672366 100644
--- a/debug.c
+++ b/debug.c
@@ -1,4 +1,4 @@
-/* Copyright 2011-2019
+/* Copyright 2011-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/debug.h b/debug.h
index 4eb042e2..2294c50a 100644
--- a/debug.h
+++ b/debug.h
@@ -1,4 +1,4 @@
-/* Copyright 2012-2019
+/* Copyright 2012-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/eval.c b/eval.c
index 58b745fd..6d11cfef 100644
--- a/eval.c
+++ b/eval.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/eval.h b/eval.h
index 8d71a706..ad817d99 100644
--- a/eval.h
+++ b/eval.h
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ffi.c b/ffi.c
index 0fe1e92e..972b54e8 100644
--- a/ffi.c
+++ b/ffi.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ffi.h b/ffi.h
index 673ba911..c16de4a6 100644
--- a/ffi.h
+++ b/ffi.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/filter.c b/filter.c
index 725939ae..3f93a2ed 100644
--- a/filter.c
+++ b/filter.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/filter.h b/filter.h
index 77eb4c33..3d1df625 100644
--- a/filter.h
+++ b/filter.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ftw.c b/ftw.c
index d661d306..27b8e790 100644
--- a/ftw.c
+++ b/ftw.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/ftw.h b/ftw.h
index 94432e11..164bab92 100644
--- a/ftw.h
+++ b/ftw.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/gc.c b/gc.c
index 2d86c830..bdcc637e 100644
--- a/gc.c
+++ b/gc.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/gc.h b/gc.h
index 95d4c8a3..0c026cbf 100644
--- a/gc.h
+++ b/gc.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/glob.c b/glob.c
index dae05fb7..0584f9bf 100644
--- a/glob.c
+++ b/glob.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/glob.h b/glob.h
index eaaa81a0..259901dc 100644
--- a/glob.h
+++ b/glob.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/hash.c b/hash.c
index 8e894db2..f3f5e3f4 100644
--- a/hash.c
+++ b/hash.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/hash.h b/hash.h
index e88d0eee..f6cbf068 100644
--- a/hash.h
+++ b/hash.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/itypes.c b/itypes.c
index d9aa7aaa..d5821638 100644
--- a/itypes.c
+++ b/itypes.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/itypes.h b/itypes.h
index a2e38672..0991b1cd 100644
--- a/itypes.h
+++ b/itypes.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/jmp.S b/jmp.S
index 5934bb7d..994b09bd 100644
--- a/jmp.S
+++ b/jmp.S
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lib.c b/lib.c
index dfacd646..f4cd1306 100644
--- a/lib.c
+++ b/lib.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lib.h b/lib.h
index 276b8ecb..76497d42 100644
--- a/lib.h
+++ b/lib.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index 6a65fccc..bdb0fedc 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) 2015-2019, Kaz Kylheku <kaz at kylheku dot com>
+ * Copyright (c) 2015-2020, Kaz Kylheku <kaz at kylheku dot com>
  *
  * All rights reserved.
  *
diff --git a/linenoise/linenoise.h b/linenoise/linenoise.h
index d5975ed8..178df11c 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) 2015-2019, Kaz Kylheku <kaz at kylheku dot com>
+ * Copyright (c) 2015-2020, Kaz Kylheku <kaz at kylheku dot com>
  *
  * All rights reserved.
  *
diff --git a/lisplib.c b/lisplib.c
index d143ab2d..dfe3d02e 100644
--- a/lisplib.c
+++ b/lisplib.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/lisplib.h b/lisplib.h
index 1adf6114..5d6a08e8 100644
--- a/lisplib.h
+++ b/lisplib.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/match.c b/match.c
index 676796e4..7ff1b27f 100644
--- a/match.c
+++ b/match.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/match.h b/match.h
index 6a1a8407..26eee251 100644
--- a/match.h
+++ b/match.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.c b/parser.c
index ba862eb2..0752cf45 100644
--- a/parser.c
+++ b/parser.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.h b/parser.h
index 94c432db..337dca9b 100644
--- a/parser.h
+++ b/parser.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.l b/parser.l
index 292615e1..87215221 100644
--- a/parser.l
+++ b/parser.l
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/parser.y b/parser.y
index 21414ed5..6588b50e 100644
--- a/parser.y
+++ b/parser.y
@@ -1,6 +1,6 @@
 %{
 
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/protsym.c b/protsym.c
index 9e603bc7..863033c5 100644
--- a/protsym.c
+++ b/protsym.c
@@ -1,6 +1,6 @@
 /* This file is generated by genprotsym.txr */
 
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/rand.c b/rand.c
index ce3a69a7..18ea62a2 100644
--- a/rand.c
+++ b/rand.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/rand.h b/rand.h
index 1e718088..1026e518 100644
--- a/rand.h
+++ b/rand.h
@@ -1,4 +1,4 @@
-/* Copyright 2011-2019
+/* Copyright 2011-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/regex.c b/regex.c
index d4008b38..beb61387 100644
--- a/regex.c
+++ b/regex.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/regex.h b/regex.h
index 73c92093..3c60f633 100644
--- a/regex.h
+++ b/regex.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * 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 ffef617c..8dd64ec4 100644
--- a/share/txr/stdlib/asm.tl
+++ b/share/txr/stdlib/asm.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2019
+;; Copyright 2018-2020
 ;; 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 c6884be5..33776a1c 100644
--- a/share/txr/stdlib/awk.tl
+++ b/share/txr/stdlib/awk.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 91a39223..527460be 100644
--- a/share/txr/stdlib/build.tl
+++ b/share/txr/stdlib/build.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 ecc93bdd..4c334562 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 2015-2019
+;; Copyright 2015-2020
 ;; 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 58e8cd33..44f276f5 100644
--- a/share/txr/stdlib/compiler.tl
+++ b/share/txr/stdlib/compiler.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2019
+;; Copyright 2018-2020
 ;; 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 7aae6d32..7a3551f9 100644
--- a/share/txr/stdlib/conv.tl
+++ b/share/txr/stdlib/conv.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 f724133e..225d8207 100644
--- a/share/txr/stdlib/debugger.tl
+++ b/share/txr/stdlib/debugger.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019
+;; Copyright 2019-2020
 ;; 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 f15afe4b..009a9ef8 100644
--- a/share/txr/stdlib/defset.tl
+++ b/share/txr/stdlib/defset.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019
+;; Copyright 2019-2020
 ;; 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 6129c80a..5cccd861 100644
--- a/share/txr/stdlib/doloop.tl
+++ b/share/txr/stdlib/doloop.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 d474f82f..1e946732 100644
--- a/share/txr/stdlib/error.tl
+++ b/share/txr/stdlib/error.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 4ceba4cb..aa2c214a 100644
--- a/share/txr/stdlib/except.tl
+++ b/share/txr/stdlib/except.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 99c0da72..a5748f3f 100644
--- a/share/txr/stdlib/ffi.tl
+++ b/share/txr/stdlib/ffi.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 be6dec4f..798421f7 100644
--- a/share/txr/stdlib/getopts.tl
+++ b/share/txr/stdlib/getopts.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 95b47aaa..61523d8e 100644
--- a/share/txr/stdlib/getput.tl
+++ b/share/txr/stdlib/getput.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 413b5c0d..96d2e705 100644
--- a/share/txr/stdlib/hash.tl
+++ b/share/txr/stdlib/hash.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 239de517..c1c32538 100644
--- a/share/txr/stdlib/ifa.tl
+++ b/share/txr/stdlib/ifa.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 82899f2f..7dd38de2 100644
--- a/share/txr/stdlib/keyparams.tl
+++ b/share/txr/stdlib/keyparams.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 f7ca0e78..9b3cf346 100644
--- a/share/txr/stdlib/op.tl
+++ b/share/txr/stdlib/op.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 f9a3045f..d399dd81 100644
--- a/share/txr/stdlib/package.tl
+++ b/share/txr/stdlib/package.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 2fbf79be..e656eadc 100644
--- a/share/txr/stdlib/param.tl
+++ b/share/txr/stdlib/param.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019
+;; Copyright 2019-2020
 ;; 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 4ebb1e3e..d550352b 100644
--- a/share/txr/stdlib/path-test.tl
+++ b/share/txr/stdlib/path-test.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 38b3aade..4e2c7904 100644
--- a/share/txr/stdlib/place.tl
+++ b/share/txr/stdlib/place.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 4e172834..48bb3386 100644
--- a/share/txr/stdlib/pmac.tl
+++ b/share/txr/stdlib/pmac.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 dada28a3..4823cd4e 100644
--- a/share/txr/stdlib/save-exe.tl
+++ b/share/txr/stdlib/save-exe.tl
@@ -1,4 +1,4 @@
-;; Copyright 2019
+;; Copyright 2019-2020
 ;; 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 4754349f..5f9d3d7c 100644
--- a/share/txr/stdlib/socket.tl
+++ b/share/txr/stdlib/socket.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 fd37e8bc..ba5a5cb2 100644
--- a/share/txr/stdlib/stream-wrap.tl
+++ b/share/txr/stdlib/stream-wrap.tl
@@ -1,4 +1,4 @@
-;; Copyright 2017-2019
+;; Copyright 2017-2020
 ;; 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 0461cd05..aa518444 100644
--- a/share/txr/stdlib/struct.tl
+++ b/share/txr/stdlib/struct.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 24a99ef5..de2a8829 100644
--- a/share/txr/stdlib/tagbody.tl
+++ b/share/txr/stdlib/tagbody.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 b67f9bf0..d8936633 100644
--- a/share/txr/stdlib/termios.tl
+++ b/share/txr/stdlib/termios.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 28e569e6..a9afcd1d 100644
--- a/share/txr/stdlib/trace.tl
+++ b/share/txr/stdlib/trace.tl
@@ -1,4 +1,4 @@
-;; Copyright 2016-2019
+;; Copyright 2016-2020
 ;; 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 57e44643..5a507fb1 100644
--- a/share/txr/stdlib/txr-case.tl
+++ b/share/txr/stdlib/txr-case.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 1ea84cc5..d784b893 100644
--- a/share/txr/stdlib/type.tl
+++ b/share/txr/stdlib/type.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 498c144d..1198831b 100644
--- a/share/txr/stdlib/vm-param.tl
+++ b/share/txr/stdlib/vm-param.tl
@@ -1,4 +1,4 @@
-;; Copyright 2018-2019
+;; Copyright 2018-2020
 ;; 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 0494982a..eb061066 100644
--- a/share/txr/stdlib/with-resources.tl
+++ b/share/txr/stdlib/with-resources.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 fd00a9f9..d79ff5da 100644
--- a/share/txr/stdlib/with-stream.tl
+++ b/share/txr/stdlib/with-stream.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; 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 c1aa7d5e..947c3a1d 100644
--- a/share/txr/stdlib/yield.tl
+++ b/share/txr/stdlib/yield.tl
@@ -1,4 +1,4 @@
-;; Copyright 2015-2019
+;; Copyright 2015-2020
 ;; Kaz Kylheku <kaz@kylheku.com>
 ;; Vancouver, Canada
 ;; All rights reserved.
diff --git a/signal.c b/signal.c
index a5f91ccd..900844e6 100644
--- a/signal.c
+++ b/signal.c
@@ -1,4 +1,4 @@
-/* Copyright 2013-2019
+/* Copyright 2013-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/signal.h b/signal.h
index 2b998297..c3e5375f 100644
--- a/signal.h
+++ b/signal.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2019
+/* Copyright 2013-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/socket.c b/socket.c
index 8f3662e0..c9da9a19 100644
--- a/socket.c
+++ b/socket.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/socket.h b/socket.h
index 9753596c..0e803eef 100644
--- a/socket.h
+++ b/socket.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/stream.c b/stream.c
index d6617847..3dd3ed30 100644
--- a/stream.c
+++ b/stream.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/stream.h b/stream.h
index 5d137d47..6fb245d6 100644
--- a/stream.h
+++ b/stream.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/struct.c b/struct.c
index f68585e3..f411762a 100644
--- a/struct.c
+++ b/struct.c
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/struct.h b/struct.h
index 78701270..5021c993 100644
--- a/struct.h
+++ b/struct.h
@@ -1,4 +1,4 @@
-/* Copyright 2015-2019
+/* Copyright 2015-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/strudel.c b/strudel.c
index 7dbfe3ea..5aa4f67e 100644
--- a/strudel.c
+++ b/strudel.c
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/strudel.h b/strudel.h
index 32cd3fef..c2da46f9 100644
--- a/strudel.h
+++ b/strudel.h
@@ -1,4 +1,4 @@
-/* Copyright 2017-2019
+/* Copyright 2017-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/sysif.c b/sysif.c
index 7ff7e816..6d742b35 100644
--- a/sysif.c
+++ b/sysif.c
@@ -1,4 +1,4 @@
-/* Copyright 2010-2019
+/* Copyright 2010-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/sysif.h b/sysif.h
index ef548d21..4556a752 100644
--- a/sysif.h
+++ b/sysif.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2019
+/* Copyright 2013-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/syslog.c b/syslog.c
index a3ad852d..e767ac33 100644
--- a/syslog.c
+++ b/syslog.c
@@ -1,4 +1,4 @@
-/* Copyright 2013-2019
+/* Copyright 2013-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/syslog.h b/syslog.h
index 69ce303a..23a03d21 100644
--- a/syslog.h
+++ b/syslog.h
@@ -1,4 +1,4 @@
-/* Copyright 2013-2019
+/* Copyright 2013-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/termios.c b/termios.c
index a600f998..6179f2b5 100644
--- a/termios.c
+++ b/termios.c
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/termios.h b/termios.h
index b60bf685..5fd8b2ea 100644
--- a/termios.h
+++ b/termios.h
@@ -1,4 +1,4 @@
-/* Copyright 2016-2019
+/* Copyright 2016-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/tree.c b/tree.c
index b6a20829..f4473b88 100644
--- a/tree.c
+++ b/tree.c
@@ -1,4 +1,4 @@
-/* Copyright 2019
+/* Copyright 2019-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/tree.h b/tree.h
index 7c7833bf..da72c010 100644
--- a/tree.h
+++ b/tree.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/txr.1 b/txr.1
index 0d7f560d..acdd8ed2 100644
--- a/txr.1
+++ b/txr.1
@@ -1,5 +1,5 @@
 .\" t '\" vim:set syntax=groff:
-.\" Copyright (C) 2009-2019 Kaz Kylheku <kaz@kylheku.com>.
+.\" Copyright (C) 2009-2020 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 3bb520ae..ef9afd9a 100644
--- a/txr.c
+++ b/txr.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * 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 2009-2017 Kaz Kylheku <kaz@kylheku.com>\n"
+"Copyright 2009-2020 Kaz Kylheku <kaz@kylheku.com>\n"
 "\n"
 "Usage:\n"
 "\n"
diff --git a/txr.h b/txr.h
index 245d3ff2..96196257 100644
--- a/txr.h
+++ b/txr.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/unwind.c b/unwind.c
index 449062f9..0ac44798 100644
--- a/unwind.c
+++ b/unwind.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/unwind.h b/unwind.h
index 9bea72bb..7f195f47 100644
--- a/unwind.h
+++ b/unwind.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/utf8.c b/utf8.c
index c5f9f3dc..8afae187 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/utf8.h b/utf8.h
index a007ac68..a8c48757 100644
--- a/utf8.h
+++ b/utf8.h
@@ -1,4 +1,4 @@
-/* Copyright 2009-2019
+/* Copyright 2009-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vm.c b/vm.c
index 90b99210..f7ace0d3 100644
--- a/vm.c
+++ b/vm.c
@@ -1,4 +1,4 @@
-/* Copyright 2018-2019
+/* Copyright 2018-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vm.h b/vm.h
index bd160d57..427ffe65 100644
--- a/vm.h
+++ b/vm.h
@@ -1,4 +1,4 @@
-/* Copyright 2018-2019
+/* Copyright 2018-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/vmop.h b/vmop.h
index 68bac89b..7c2e6185 100644
--- a/vmop.h
+++ b/vmop.h
@@ -1,4 +1,4 @@
-/* Copyright 2018-2019
+/* Copyright 2018-2020
  * Kaz Kylheku <kaz@kylheku.com>
  * Vancouver, Canada
  * All rights reserved.
diff --git a/win/cleansvg.txr b/win/cleansvg.txr
index fd89b9c0..4ff50d32 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 2017-2019 Kaz Kylheku <kaz@@kylheku.com> -->
+     Copyright 2017-2020 Kaz Kylheku <kaz@@kylheku.com> -->
 
 <svg xmlns="@xmlns"
      viewBox="0 0 @width @height"