GNU gzip NEWS -*- outline -*-
-* Noteworthy changes in release ?.? (????-??-??) [?]
+* Noteworthy changes in release 1.7 (2016-03-27) [stable]
+
+** Changes in behavior
+
+ The GZIP environment variable is now obsolescent; gzip now warns if
+ it is used, and rejects attempts to use dangerous options or operands.
+ You can use an alias or script instead.
+
+ Installed programs like 'zgrep' now use the PATH environment variable
+ as usual to find subsidiary programs like 'gzip' and 'grep'.
+ Previously they prepended the installation directory to the PATH,
+ which sometimes caused 'make check' to test the wrong gzip executable.
+ [bug introduced in gzip-1.3.13]
+
+** New features
+
+ gzip now accepts the --synchronous option, which causes it to use
+ fsync and similar primitives to transfer output data to the output
+ file's storage device when the file system supports this. Although
+ this option makes gzip safer in the presence of system crashes, it
+ can make gzip considerably slower.
+
+ gzip now accepts the --rsyncable option. This option is accepted in
+ all modes, but has effect only when compressing: it makes the resulting
+ output more amenable to efficient use of rsync. For example, when a
+ large input file gets a small change, a gzip --rsyncable image of
+ that file will remain largely unchanged, too. Without --rsyncable,
+ even a tiny change in the input could result in a totally different
+ gzip-compressed output file.
+
+** Bug fixes
+
+ gzip -k -v no longer reports that files are replaced.
+ [bug present since the beginning]
+
+ zgrep -f A B C no longer reads A more than once if A is not a regular file.
+ This better supports invocations like 'zgrep -f <(COMMAND) B C' in Bash.
+ [bug introduced in gzip-1.2]
+
+
+* Noteworthy changes in release 1.6 (2013-06-09) [stable]
+
+** New features
+
+ gzip now accepts the --keep (-k) option, for consistency with tools
+ like xz, lzip and bzip2. With this option, gzip no longer removes
+ named input files when compressing or decompressing.
+
+** Bug fixes
+
+ gzip -d no longer malfunctions with certain invalid data in 'pack' format.
+ [bug introduced in gzip-0.8]
+
+ When overwriting, gzip no longer acts as if you typed "y" when you type "n",
+ on some platforms when compiled with optimization.
+ [bug introduced in gzip-1.3.6]
+
+ zgrep no longer malfunctions with a multi-digit context option like -15.
+ Now, it passes that option to grep (equivalent to -C15) just as it does
+ for single-digit options. [bug introduced in gzip-1.3.12]
+
+ zmore now acts more like 'more', and is more portable to POSIXish hosts.
+
+
+* Noteworthy changes in release 1.5 (2012-06-17) [stable]
** Bug fixes
For example, now "(printf x|gzip; echo y)|gzip -dcf" prints "xy\n",
while before it would print "x<compressed data>y\n".
+ gzip -rf no longer compresses files more than once (e.g., replacing
+ FOO with FOO.gz.gz) on file systems such as ZFS where a readdir
+ loop that unlinks and creates files can revisit output files.
+
* Noteworthy changes in release 1.4 (2010-01-20) [stable]
* With --force, let zcat pass non gzip'ed data unchanged (zcat == cat)
* Added the zgrep shell script.
* Made sub.c useful for 16 bit sound, 24 bit images, etc..
-* Supress warnings about suffix for gunzip -r, except with --verbose.
+* Suppress warnings about suffix for gunzip -r, except with --verbose.
* On MSDOS, use .gz extension when possible (files without extension)
* Moved the sample programs to a subdirectory sample.
* Added a "Special targets" section in INSTALL.
========================================================================
-Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2012 Free Software Foundation,
+Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2016 Free Software Foundation,
Inc.
Copyright (C) 1992, 1993 Jean-loup Gailly
projects / debian / gzip / blobdiff