2026-02-07  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.16 released.
	* zcmp.cc (getnum): Accept underscore separators ('_').
	  Print large numbers with underscore separators ('_').
	* zgrep.cc: Assign short option name '-?' to '--help'.
	* *.cc: (show_help): Print "*Exit status*" for section in man page.
	* Makefile.in (install-bin): Warn of changes in /etc/zutils.conf.

2025-05-27  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.15 released.
	* zcat, ztest, zupdate: New option '-x, --exclude'.
	* zgrep: New option '--exclude'.
	* zgrep.cc: Exit with status 2 if write error on stdout.

2025-01-05  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.14 released.
	* zupdate.cc: '-r -d' now keeps last component of dir arguments.
	* zutils.texi: New chapter 'Syntax of command-line arguments'.
	* check.sh: Use 'cp' instead of 'cat'.

2024-01-23  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.13 released.
	* zutils.cc (test_format): Fix detection of bzip2 with no blocks.
	* rc.h (format_order): Put fmt_gz before fmt_bz2.
	* zcmpdiff.cc (open_other_instream): Try also other compressed formats.
	* zcmp.cc (cmp): Report EOF on empty file like GNU cmp.
	* zupdate.cc: Reformat file diagnostics as 'PROGRAM: FILE: MESSAGE'.
	* Replace 'verify' with 'check'.
	* configure, Makefile.in: New variable 'MAKEINFO'.

2023-01-07  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.12 released.
	* zutilsrc: Rename to zutils.conf. Search for it in $XDG_CONFIG_HOME.
	  (Suggested by Adam Tuja).
	* Allow '-O, --force-format' force also uncompressed format.
	* zcmp.cc: New option '-H, --hexadecimal'.
	  Change long name of option '-s' to '--script'.
	  (Following a similar change made to GNU ed).
	  Assign short name '-q' to options '--quiet' and '--silent'.
	  Separate option '-l, --list' from '-v, --verbose'.
	  (cmp): Print byte and line in EOF message like GNU cmp.
	* zgrep.cc: New options '-G, --basic-regexp', '--label=<label>',
	  '--line-buffered', '-P, --perl-regexp', '--silent',
	  '-T, --initial-tab', '-U, --binary'. (Reported by Chris Jamboretz).
	  New option '-Z, --null'. (Reported by Leah Neukirchen).
	* ztest.cc: Exit with status 2 if a file has wrong extension.
	* zupdate.cc: New options '-d, --destdir', '-e, --expand-extensions',
	  '-i, --ignore-errors'. ('-i' suggested by Antoni Sawicki).
	  (zupdate_file): Pass '-q -s' to zcmp if verbosity < 0.
	* Support compress'd (.Z) files through gzip in all utilities.
	* rc.cc (show_version): Print the versions of the compressors used.
	  (show_option_error): New function showing argument and option name.
	* zutils.texi: Document that format is detected by its magic bytes.
	* check.sh: Test tarlz (if available) as compressor for zupdate.

2022-01-25  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.11 released.
	* zcmp.cc, zdiff.cc (main): Fix race returning 1 instead of 2 when a
	  compressor is not found or when the wrong format is forced.
	* zcmp.cc (getnum): Show option name and valid range if error.
	* All utilities: Show option name if error in option argument.
	* Add support for zstd format to all utilities.
	* 'zdiff -v -V' now prints the version of the diff program used.
	* 'zgrep --verbose -V' now prints the version of the grep program used.
	* zutils.texi: Document recompression of read-only files by linking.
	* zutils.texi: Change GNU Texinfo category to 'Compression'.
	  (Reported by Alfred M. Szmidt).

2021-01-05  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.10 released.
	* zdiff.cc (set_fifonames): Encode pid in little endian order.
	* zupdate.cc (zupdate_file): Fix a portability issue with Solaris 10.
	* zutils.texi: Document that 'zgrep -L' fails with GNU grep 3.2 to 3.4.
	* check.sh: Test empty input files with all utilities except zupdate.

2020-06-27  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.9 released.
	* zcmp.cc, zdiff.cc: Read standard input only if requested.
	* zdiff.cc (main): Pass options '-W' and '-y' to diff.
	* zutils.cc (test_format): Detect bzip2 and lzip files better.
	* ztest.cc (main): Continue testing if any input file is a terminal.
	  If verbosity >= 1, print number of files that failed the test.
	* zcat.cc, zgrep.cc, ztest.cc (main): Check return value of close(infd).
	* zutils.cc (good_status): Ignore trailing data remaining in feeder.
	* zupdate.cc (zupdate_file): Support new and old lzip option '-o'.
	  Keep combined extensions: tgz, tbz, tbz2, txz --> tlz.
	  Quote file names in zcmp_command to allow file names with spaces.
	* *.cc (main): Set a valid invocation_name even if argc == 0.
	* zutils.texi: Improve descriptions of zcat, zcmp, and zdiff.

2019-01-01  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.8 released.
	* zcat.cc: Fix a buffer overflow on outbuf when '-v' is used.
	* zcat.cc (cat): A canary byte has been added to outbuf.
	* New option '-R, --dereference-recursive'.
	* Option '-r, --recursive' now skips symlinks.
	* If no files and recursive, examine current working directory.
	* recursive.cc (test_full_name): Detect directory loops.
	* recursive.cc: Ignore directories if not --recursive.
	* recursive.cc: Remove extra trailing slashes from directory args.
	* zcatgrep.cc (open_instream): Show correct errno.
	* zutils.cc (good_status): Wait for killed child.
	* Test and document continuation or exit of zcat, zgrep, ztest,
	  and zupdate in case of error.
	* configure: Accept appending to CXXFLAGS; 'CXXFLAGS+=OPTIONS'.

2018-02-13  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.7 released.
	* zgrep.cc (main): Pass option '--color' to grep.
	* check.sh: Add new tests for zgrep.

2017-04-05  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.6 released.
	* zcmp.cc: Accept 'B' suffix in '--ignore-initial=1kB:1234B'.
	* zutils.cc (feed_data): Show input file name in error messages.

2016-05-15  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.5 released.
	* zupdate.cc (zupdate_file): Pass '-q' to zcmp if verbosity < 0.
	* zcat.cc, zgrep.cc, ztest.cc (main): Don't use stdin more than once.
	* zdiff.cc (set_fifonames): Use '_' if both names are different.
	* configure: Avoid warning on some shells when testing for g++.
	* Makefile.in: Detect the existence of install-info.
	* check.sh: Require a POSIX shell.

2015-05-29  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.4 released.
	* Option '--format' has been renamed to '-O, --force-format'.
	* Add new option '-M, --format=<list>' to all utilities.
	* zgrep.cc (main): Pass '-e' to grep if pattern begins with '-'.
	* Makefile.in: New targets 'install*-compress'.

2014-08-30  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.3 released.
	* check.sh: Fix two values of expected exit status.
	* zutils.texi: Document that '--format' does not check format.
	* Add two missing #includes.
	* Change license to GPL version 2 or later.

2014-02-01  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.2 released.
	* New utility; zupdate.
	* Remove zutils executable. Utilities are now independent executables.
	* zgrep.cc: Fix the exit status returned on error.
	* zutils.texinfo: Rename to zutils.texi.

2013-08-02  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.1 released.
	* Add options '--bz2', '--gz', '--lz', and '--xz' to all utilities.
	* Add runtime configuration file 'zutilsrc'.
	* New function 'good_status' checks exit status of all children.
	* Fix all uses of decompressed/uncompressed in the documentation.

2013-05-31  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.0 released.
	* Add new option '--format' to all utilities.
	* main.cc (main): Make 'grep_show_name' tri-state so that file name
	  is not prefixed to the output by default when searching one file
	  and '--recursive' has not been selected.
	* zgrep.cc: Fix output of option '-L' (it behaved like '-l').
	* zcmp.cc: Fix deadlock when option '-n' is used.
	* zdiff.cc (set_data_feeder): Call compressor with option '-q' only
	  if verbosity < 0.
	* zutils.cc (set_data_feeder): Likewise.
	* Change quote characters in messages as advised by GNU Standards.
	* configure: Options now accept a separate argument.
	  Rename 'datadir' to 'datarootdir'. Ignore environment variables.
	* Makefile.in: New target 'install-bin'.
	* Use 'setmode' instead of '_setmode' on Windows and OS/2.
	* zcat.cc (Line_number): Fix a portability issue with Solaris 9.
	* INSTALL: Document installing zutils along with GNU gzip.

2011-01-11  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.9 released.
	* configure: New variables 'DIFF' and 'GREP'.
	* zcmp.cc: Fix deadlock when files differ.
	* zgrep.cc: Fix deadlock when binary file matches.

2010-11-15  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.8 released.
	* main.cc: New options '--zcat', '--zgrep', and '--ztest'.
	* zcat.cc: New file implementing zcat+cat functionality in C++.
	* zcmp.cc: New file implementing zcmp+cmp functionality in C++.
	* doc/zcmp.1: New file.
	* Remove files zcmp.in, zdiff.in.
	* zdiff.cc: New file implementing zdiff functionality in C++.
	* zgrep.cc: New file implementing zgrep functionality in C++.
	* All mentions to zegrep and zfgrep have been removed from the
	  documentation because egrep and fgrep are deprecated.
	* ztest.cc: New file implementing ztest functionality in C++.
	* Makefile.in: Add quotes to directory names.
	* check.sh: Use 'test.txt' instead of 'COPYING' for testing.
	* configure: Remove environment safeguards as requested by
	  Richard Stallman. Now environment variables affect configure.

2009-10-21  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.7 released.
	* New utility; ztest.
	* zcat.in: New option '-r, --recursive'.

2009-10-05  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.6 released.
	* zcat.in, zgrep.in: Remove again default compressor. The format of
	  the data read from stdin is now automatically detected.
	* Makefile.in: Add option '--name' to help2man invocation.

2009-10-01  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.5 released.
	* zcat.in, zgrep.in: Read again data from stdin.
	* Add again default compressor for stdin only.

2009-09-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.4 released.
	* Add two new utilities; zegrep and zfgrep.
	* Add zutils executable which recognizes file formats.

2009-08-28  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.3 released.
	* Remove default compressor.
	* zcat.in, zgrep.in: Don't read data from stdin.
	* Update home page and mailing list addresses.

2009-08-13  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.2 released.
	* Add support for xz.

2009-08-07  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.1 released.


Copyright (C) 2009-2026 Antonio Diaz Diaz.

This file is a collection of facts, and thus it is not copyrightable, but just
in case, you have unlimited permission to copy, distribute, and modify it.
