diff --git a/Makefile b/Makefile
index 8ee7c94..f5854f5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,10 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
+# Version number of this code distribution.
+TZCODE_VERSION = tzcode2012b
+
 # Change the line below for your time zone (after finding the zone you want in
 # the time zone files, or adding it to a time zone file).
 # Alternately, if you discover you've got the wrong time zone, you can just
@@ -309,6 +311,10 @@ INSTALL:	ALL install date.1
 		-rm -f $(MANDIR)/man1/date.1
 		cp date.1 $(MANDIR)/man1/.
 
+version.h:
+		echo >$@ \
+		  'static char const TZCODE_VERSION[]="$(TZCODE_VERSION)";'
+
 zdump:		$(TZDOBJS)
 		$(CC) $(CFLAGS) $(LFLAGS) $(TZDOBJS) $(LDLIBS) -o $@
 
@@ -359,6 +365,7 @@ tzselect:	tzselect.ksh
 		sed \
 			-e 's|AWK=[^}]*|AWK=$(AWK)|g' \
 			-e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
+			-e 's|\(TZCODE_VERSION\)=.*|\1=$(TZCODE_VERSION)|' \
 			<$? >$@
 		chmod +x $@
 
@@ -371,7 +378,8 @@ check_web:	$(WEB_PAGES)
 		$(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) $(WEB_PAGES)
 
 clean:
-		rm -f core *.o *.out tzselect zdump zic yearistype date
+		rm -f core *.o *.out \
+		  date tzselect version.h zdump zic yearistype
 
 maintainer-clean: clean
 		@echo 'This command is intended for maintainers to use; it'
@@ -416,6 +424,7 @@ ialloc.o:	private.h
 localtime.o:	private.h tzfile.h
 scheck.o:	private.h
 strftime.o:	tzfile.h
-zic.o:		private.h tzfile.h
+zdump.o:	version.h
+zic.o:		private.h tzfile.h version.h
 
 .KEEP_STATE:
diff --git a/README b/README
index 1e9a872..f3a97f3 100644
--- a/README
+++ b/README
@@ -1,4 +1,3 @@
-%W%
 This file is in the public domain, so clarified as of
 2009-05-17 by Arthur David Olson.
 
diff --git a/TESTS b/TESTS
index 83a554c..c6327e8 100644
--- a/TESTS
+++ b/TESTS
@@ -1,7 +1,5 @@
 #! /bin/sh
 
-# '%W%'
-
 rm -f -r try
 mkdir try
 make `make names`
diff --git a/Theory b/Theory
index 3b24006..7094b27 100644
--- a/Theory
+++ b/Theory
@@ -1,4 +1,3 @@
-%W%
 This file is in the public domain, so clarified as of
 2009-05-17 by Arthur David Olson.
 
diff --git a/africa b/africa
index ff843ca..6104815 100644
--- a/africa
+++ b/africa
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -238,7 +237,7 @@ Rule	Egypt	2006	only	-	Sep	21	23:00s	0	-
 # I received a mail from an airline which says that the daylight
 # saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
 # From Jesper Norgaard Welen (2007-08-15): [The following agree:]
-# http://www.nentjes.info/Bill/bill5.htm 
+# http://www.nentjes.info/Bill/bill5.htm
 # http://www.timeanddate.com/worldclock/city.html?n=53
 # From Steffen Thorsen (2007-09-04): The official information...:
 # http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
@@ -292,18 +291,18 @@ Rule	Egypt	2007	only	-	Sep	Thu>=1	23:00s	0	-
 # in September.
 
 # From Steffen Thorsen (2009-08-11):
-# We have been able to confirm the August change with the Egyptian Cabinet 
+# We have been able to confirm the August change with the Egyptian Cabinet
 # Information and Decision Support Center:
 # <a href="http://www.timeanddate.com/news/time/egypt-dst-ends-2009.html">
 # http://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
 # </a>
-# 
+#
 # The Middle East News Agency
 # <a href="http://www.mena.org.eg/index.aspx">
 # http://www.mena.org.eg/index.aspx
 # </a>
 # also reports "Egypt starts winter time on August 21"
-# today in article numbered "71, 11/08/2009 12:25 GMT." 
+# today in article numbered "71, 11/08/2009 12:25 GMT."
 # Only the title above is available without a subscription to their service,
 # and can be found by searching for "winter" in their search engine
 # (at least today).
@@ -482,7 +481,7 @@ Zone Africa/Nouakchott	-1:03:48 -	LMT	1912
 # From Steffen Thorsen (2008-06-25):
 # Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial
 # basis....
-# It seems that Mauritius observed daylight saving time from 1982-10-10 to 
+# It seems that Mauritius observed daylight saving time from 1982-10-10 to
 # 1983-03-20 as well, but that was not successful....
 # http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
 
@@ -506,12 +505,12 @@ Zone Africa/Nouakchott	-1:03:48 -	LMT	1912
 # than previously announced (2008-11-01 to 2009-03-31).  The new start
 # date is 2008-10-26 at 02:00 and the new end date is 2009-03-27 (no time
 # given, but it is probably at either 2 or 3 wall clock time).
-# 
-# A little strange though, since the article says that they moved the date 
-# to align itself with Europe and USA which also change time on that date, 
-# but that means they have not paid attention to what happened in 
-# USA/Canada last year (DST ends first Sunday in November). I also wonder 
-# why that they end on a Friday, instead of aligning with Europe which 
+#
+# A little strange though, since the article says that they moved the date
+# to align itself with Europe and USA which also change time on that date,
+# but that means they have not paid attention to what happened in
+# USA/Canada last year (DST ends first Sunday in November). I also wonder
+# why that they end on a Friday, instead of aligning with Europe which
 # changes two days later.
 
 # From Alex Krivenyshev (2008-07-11):
@@ -570,7 +569,7 @@ Zone Africa/Nouakchott	-1:03:48 -	LMT	1912
 # </a>
 
 # From Arthur David Olson (2009-07-11):
-# The "mauritius-dst-will-not-repeat" wrapup includes this: 
+# The "mauritius-dst-will-not-repeat" wrapup includes this:
 # "The trial ended on March 29, 2009, when the clocks moved back by one hour
 # at 2am (or 02:00) local time..."
 
@@ -664,8 +663,8 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 # XXX--guess that it is only Morocco for now; guess only 2008 for now.
 
 # From Steffen Thorsen (2008-08-27):
-# Morocco will change the clocks back on the midnight between August 31 
-# and September 1. They originally planned to observe DST to near the end 
+# Morocco will change the clocks back on the midnight between August 31
+# and September 1. They originally planned to observe DST to near the end
 # of September:
 #
 # One article about it (in French):
@@ -854,7 +853,7 @@ Zone	Africa/Maputo	2:10:20 -	LMT	1903 Mar
 # Forecasting Riaan van Zyl explained that the far eastern parts of
 # the country are close to 40 minutes earlier in sunrise than the rest
 # of the country.
-# 
+#
 # From Paul Eggert (2007-03-31):
 # Apparently the Caprivi Strip informally observes Botswana time, but
 # we have no details.  In the meantime people there can use Africa/Gaborone.
diff --git a/antarctica b/antarctica
index 93325aa..f55cbde 100644
--- a/antarctica
+++ b/antarctica
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/asctime.c b/asctime.c
index b7438fa..3d3f6b9 100644
--- a/asctime.c
+++ b/asctime.c
@@ -9,12 +9,6 @@
 ** whereas the output of asctime is supposed to be constant.
 */
 
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*LINTLIBRARY*/
 
 #include "private.h"
diff --git a/asia b/asia
index c382295..9e5904c 100644
--- a/asia
+++ b/asia
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/australasia b/australasia
index 0a169a4..d6f819d 100644
--- a/australasia
+++ b/australasia
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/backward b/backward
index 2b8457c..dc7769f 100644
--- a/backward
+++ b/backward
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/checktab.awk b/checktab.awk
index 1b17d1c..c88b12f 100644
--- a/checktab.awk
+++ b/checktab.awk
@@ -1,7 +1,5 @@
 # Check tz tables for consistency.
 
-# %W%
-
 # Contributed by Paul Eggert.
 
 BEGIN {
diff --git a/date.1 b/date.1
index da0f163..408525c 100644
--- a/date.1
+++ b/date.1
@@ -172,6 +172,5 @@ If
 is absent,
 UTC leap seconds are loaded from
 .BR /usr/local/etc/zoneinfo/posixrules .
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/date.c b/date.c
index 93434ba..5a2346e 100644
--- a/date.c
+++ b/date.c
@@ -1,12 +1,3 @@
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-/*
-** Modified from the UCB version with the SCCS ID appearing below.
-*/
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*
  * Copyright (c) 1985, 1987, 1988 The Regents of the University of California.
  * All rights reserved.
diff --git a/difftime.c b/difftime.c
index 95fb65c..59e3351 100644
--- a/difftime.c
+++ b/difftime.c
@@ -3,12 +3,6 @@
 ** 1996-06-05 by Arthur David Olson.
 */
 
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*LINTLIBRARY*/
 
 #include "private.h"	/* for time_t, TYPE_INTEGRAL, and TYPE_SIGNED */
diff --git a/etcetera b/etcetera
index dd8ce81..a9ff729 100644
--- a/etcetera
+++ b/etcetera
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/europe b/europe
index ceb7306..d600ea0 100644
--- a/europe
+++ b/europe
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/factory b/factory
index a8be4c1..d29a585 100644
--- a/factory
+++ b/factory
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/gccdiffs b/gccdiffs
index 72216a0..04bb6be 100644
--- a/gccdiffs
+++ b/gccdiffs
@@ -1,5 +1,3 @@
-%W%
-
 Here are changes to GNU's gcc-2.7.2.1 "c-common.c" file that allow strftime
 formats to be checked against what GNU's glibc-1.09.1 "strftime" accepts.
 Formats are also checked for specifications that may or must print only the
diff --git a/hr435 b/hr435
index 92d1d6b..7dd047d 100644
--- a/hr435
+++ b/hr435
@@ -1,4 +1,3 @@
-.. %W%
 .nh
 .na
 .if n .ds lq \&"\"
diff --git a/ialloc.c b/ialloc.c
index 3eced54..0268cf4 100644
--- a/ialloc.c
+++ b/ialloc.c
@@ -3,12 +3,6 @@
 ** 2006-07-17 by Arthur David Olson.
 */
 
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*LINTLIBRARY*/
 
 #include "private.h"
diff --git a/iso3166.tab b/iso3166.tab
index cff772b..b952ca1 100644
--- a/iso3166.tab
+++ b/iso3166.tab
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 # ISO 3166 alpha-2 country codes
diff --git a/leapseconds b/leapseconds
index d905fa8..6a914df 100644
--- a/leapseconds
+++ b/leapseconds
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/localtime.c b/localtime.c
index 1b00f29..93ef8a8 100644
--- a/localtime.c
+++ b/localtime.c
@@ -3,12 +3,6 @@
 ** 1996-06-05 by Arthur David Olson.
 */
 
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*
 ** Leap second handling from Bradley White.
 ** POSIX-style TZ environment variable handling from Guy Harris.
diff --git a/newctime.3 b/newctime.3
index 71b938d..3583a91 100644
--- a/newctime.3
+++ b/newctime.3
@@ -236,6 +236,5 @@ instead.
 Avoid using out-of-range values with
 .I mktime
 when setting up lunch with promptness sticklers in Riyadh.
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/newstrftime.3 b/newstrftime.3
index 6a8e68f..ef79e4d 100644
--- a/newstrftime.3
+++ b/newstrftime.3
@@ -227,4 +227,3 @@ newctime(3),
 newtzset(3),
 time(2),
 tzfile(5)
-.\" %W%
diff --git a/newtzset.3 b/newtzset.3
index 6bf028d..fd6b677 100644
--- a/newtzset.3
+++ b/newtzset.3
@@ -234,6 +234,5 @@ newctime(3),
 newstrftime(3),
 time(2),
 tzfile(5)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/northamerica b/northamerica
index ee1c97d..84876c9 100644
--- a/northamerica
+++ b/northamerica
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/pacificnew b/pacificnew
index 5a528a1..bccd852 100644
--- a/pacificnew
+++ b/pacificnew
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/posix b/posix
index a361978..1a78edd 100644
--- a/posix
+++ b/posix
@@ -1,5 +1,3 @@
-# %W%
-
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	POSIX	1970	1973	-	Apr	lastSun	2:00	1:00	D
 Rule	POSIX	1974	only	-	Jan	6	2:00	1:00	D
diff --git a/private.h b/private.h
index 8b365a7..f0e2e6d 100644
--- a/private.h
+++ b/private.h
@@ -15,16 +15,6 @@
 ** Thank you!
 */
 
-/*
-** ID
-*/
-
-#ifndef lint
-#ifndef NOID
-static char	privatehid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 #define GRANDPARENTED	"Local time zone must be set--see zic manual page"
 
 /*
diff --git a/scheck.c b/scheck.c
index 3e01367..8e7737f 100644
--- a/scheck.c
+++ b/scheck.c
@@ -3,12 +3,6 @@
 ** 2006-07-17 by Arthur David Olson.
 */
 
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-#endif /* !defined lint */
-#endif /* !defined NOID */
-
 /*LINTLIBRARY*/
 
 #include "private.h"
diff --git a/solar87 b/solar87
index eeb18a5..2299558 100644
--- a/solar87
+++ b/solar87
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/solar88 b/solar88
index 41d7d70..bb1d6ca 100644
--- a/solar88
+++ b/solar88
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/solar89 b/solar89
index 9c11064..af93235 100644
--- a/solar89
+++ b/solar89
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/southamerica b/southamerica
index 789bbb7..ff6b2f0 100644
--- a/southamerica
+++ b/southamerica
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/strftime.c b/strftime.c
index 37d402f..e8c8b82 100644
--- a/strftime.c
+++ b/strftime.c
@@ -1,13 +1,3 @@
-#ifndef lint
-#ifndef NOID
-static char	elsieid[] = "%W%";
-/*
-** Based on the UCB version with the ID appearing below.
-** This is ANSIish only when "multibyte character == plain character".
-*/
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 #include "private.h"
 
 /*
diff --git a/systemv b/systemv
index ef19139..e651e85 100644
--- a/systemv
+++ b/systemv
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/time2posix.3 b/time2posix.3
index de54e4a..e17b011 100644
--- a/time2posix.3
+++ b/time2posix.3
@@ -116,6 +116,5 @@ difftime(3),
 localtime(3),
 mktime(3),
 time(2)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 1996-06-05 by Arthur David Olson.
diff --git a/tz-art.htm b/tz-art.htm
index 904c0e7..342fd97 100644
--- a/tz-art.htm
+++ b/tz-art.htm
@@ -8,9 +8,6 @@ PUBLIC "-//W3C//DTD HTML 4.01//EN"
 </head>
 <body>
 <h1>Time and the Arts</h1>
-<address>
-%W%
-</address>
 <p>
 This file is in the public domain, so clarified as of
 2009-05-17 by Arthur David Olson.
diff --git a/tz-link.htm b/tz-link.htm
index 4d7f42c..6588492 100644
--- a/tz-link.htm
+++ b/tz-link.htm
@@ -17,9 +17,6 @@
 </head>
 <body>
 <h1>Sources for Time Zone and Daylight Saving Time Data</h1>
-<address>
-%W%
-</address>
 <p>
 This file is in the public domain, so clarified as of
 2009-05-17 by Arthur David Olson.
diff --git a/tzfile.5 b/tzfile.5
index e64d561..aa7317b 100644
--- a/tzfile.5
+++ b/tzfile.5
@@ -147,6 +147,5 @@ after the last transition time stored in the file
 such instants).
 .SH SEE ALSO
 newctime(3)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 1996-06-05 by Arthur David Olson.
diff --git a/tzfile.h b/tzfile.h
index 59782f1..0f6c687 100644
--- a/tzfile.h
+++ b/tzfile.h
@@ -15,16 +15,6 @@
 ** Thank you!
 */
 
-/*
-** ID
-*/
-
-#ifndef lint
-#ifndef NOID
-static char	tzfilehid[] = "%W%";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*
 ** Information about time zone files.
 */
diff --git a/tzselect.8 b/tzselect.8
index e63d903..0d02590 100644
--- a/tzselect.8
+++ b/tzselect.8
@@ -38,6 +38,5 @@ The exit status is zero if a time zone was successfully obtained from the user,
 nonzero otherwise.
 .SH "SEE ALSO"
 newctime(3), tzfile(5), zdump(8), zic(8)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/tzselect.ksh b/tzselect.ksh
index 3a7e3da..3ebaaa7 100644
--- a/tzselect.ksh
+++ b/tzselect.ksh
@@ -1,6 +1,6 @@
 #! /bin/ksh
 
-VERSION='%W%'
+TZCODE_VERSION=see_Makefile
 
 # Ask the user about the time zone, and output the resulting TZ value to stdout.
 # Interact with the user via stderr and stdin.
@@ -55,7 +55,7 @@ EOF
     exit 0
 elif [ "$1" = "--version" ]; then
     cat <<EOF
-tzselect $VERSION
+tzselect $TZCODE_VERSION
 EOF
     exit 0
 fi
diff --git a/usno1988 b/usno1988
index ae0c38d..d2e6845 100644
--- a/usno1988
+++ b/usno1988
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1989-01-19):
 #
 # Here's some United States Naval Observatory time zone data from
diff --git a/usno1989 b/usno1989
index 80b2307..76f51fd 100644
--- a/usno1989
+++ b/usno1989
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1989-01-19):
 #
 # Here's time zone information from the United States Naval Observatory;
diff --git a/usno1989a b/usno1989a
index 499b7a4..b26a9d5 100644
--- a/usno1989a
+++ b/usno1989a
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1994-02-07):
 #
 # Here's time zone information from the United States Naval Observatory,
diff --git a/usno1995 b/usno1995
index fbfdde8..e39aa52 100644
--- a/usno1995
+++ b/usno1995
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1995-12-21):
 #
 # Here's time zone information from the United States Naval Observatory
diff --git a/usno1997 b/usno1997
index 605451e..ac63df5 100644
--- a/usno1997
+++ b/usno1997
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1997-03-07):
 #
 # Here's time zone information from the United States Naval Observatory
diff --git a/usno1998 b/usno1998
index d759f70..62264a1 100644
--- a/usno1998
+++ b/usno1998
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (1998-05-26):
 #
 # Here's time zone information from the United States Naval Observatory
diff --git a/usno2004 b/usno2004
index 591c334..08b6e3a 100644
--- a/usno2004
+++ b/usno2004
@@ -1,5 +1,3 @@
-# %W%
-#
 # From Arthur David Olson (2004-10-14):
 #
 # Here's time zone information from the United States Naval Observatory
diff --git a/workman.sh b/workman.sh
index 1c6ed8b..7675dc1 100644
--- a/workman.sh
+++ b/workman.sh
@@ -1,7 +1,6 @@
 #! /bin/sh
 
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
diff --git a/yearistype.sh b/yearistype.sh
index 4a797ce..bdc6e58 100644
--- a/yearistype.sh
+++ b/yearistype.sh
@@ -3,8 +3,6 @@
 : 'This file is in the public domain, so clarified as of'
 : '2006-07-17 by Arthur David Olson.'
 
-: '%W%'
-
 case $#-$1 in
 	2-|2-0*|2-*[!0-9]*)
 		echo "$0: wild year - $1" >&2
diff --git a/zdump.8 b/zdump.8
index 65f3453..63349e4 100644
--- a/zdump.8
+++ b/zdump.8
@@ -54,6 +54,5 @@ This works in all real-world cases;
 one can construct artificial time zones for which this fails.
 .SH "SEE ALSO"
 newctime(3), tzfile(5), zic(8)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/zdump.c b/zdump.c
index 5a88270..cbd3338 100644
--- a/zdump.c
+++ b/zdump.c
@@ -3,7 +3,7 @@
 ** 2009-05-17 by Arthur David Olson.
 */
 
-static char	elsieid[] = "%W%";
+#include "version.h"
 
 /*
 ** This code has been made independent of the rest of the time
@@ -282,7 +282,7 @@ char *	argv[];
 	progname = argv[0];
 	for (i = 1; i < argc; ++i)
 		if (strcmp(argv[i], "--version") == 0) {
-			(void) printf("%s\n", elsieid);
+			(void) printf("%s\n", TZCODE_VERSION);
 			exit(EXIT_SUCCESS);
 		} else if (strcmp(argv[i], "--help") == 0) {
 			usage(stdout, EXIT_SUCCESS);
diff --git a/zic.8 b/zic.8
index 579c996..d61555e 100644
--- a/zic.8
+++ b/zic.8
@@ -493,6 +493,5 @@ specifying transition instants using universal time.
 /usr/local/etc/zoneinfo	standard directory used for created files
 .SH "SEE ALSO"
 newctime(3), tzfile(5), zdump(8)
-.\" %W%
 .\" This file is in the public domain, so clarified as of
 .\" 2009-05-17 by Arthur David Olson.
diff --git a/zic.c b/zic.c
index 9ac7de8..28d7bcf 100644
--- a/zic.c
+++ b/zic.c
@@ -3,8 +3,7 @@
 ** 2006-07-17 by Arthur David Olson.
 */
 
-static char	elsieid[] = "%W%";
-
+#include "version.h"
 #include "private.h"
 #include "locale.h"
 #include "tzfile.h"
@@ -498,7 +497,7 @@ char *	argv[];
 	}
 	for (i = 1; i < argc; ++i)
 		if (strcmp(argv[i], "--version") == 0) {
-			(void) printf("%s\n", elsieid);
+			(void) printf("%s\n", TZCODE_VERSION);
 			exit(EXIT_SUCCESS);
 		} else if (strcmp(argv[i], "--help") == 0) {
 			usage(stdout, EXIT_SUCCESS);
diff --git a/zone.tab b/zone.tab
index 0d7f950..6bda826 100644
--- a/zone.tab
+++ b/zone.tab
@@ -1,5 +1,4 @@
 # <pre>
-# %W%
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
diff --git a/zoneinfo2tdf.pl b/zoneinfo2tdf.pl
index cf7b4dc..3192e0c 100755
--- a/zoneinfo2tdf.pl
+++ b/zoneinfo2tdf.pl
@@ -1,7 +1,5 @@
 #! /usr/bin/perl -w
 
-# %W%
-
 # Courtesy Ken Pizzini.
 
 use strict;