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Current Version: 1.2.4. 
See the file ChangeLog for the details of all changes. 
 
Major changes from 1.2.3 to 1.2.4 
* By default, do not restore file name and timestamp from those saved 
  inside the .gz file (behave as 'compress'). Added the --name option 
  to force name and timestamp restoration. 
* Accept - as synonym for stdin. 
* Use manlinks=so or ln to support either hard links or .so in man pages 
* Accept foo.gz~ in zdiff. 
* Added support for Windows NT 
* Handle ENAMETOOLONG for strict Posix systems 
* Use --recursive instead of --recurse to comply with Webster and 
  the GNU stdandard. 
* Allow installation of shell scripts with a g prefix: make G=g install 
* Install by default zcat as gzcat if gzcat already exists in path. 
* Let zmore behave as more when invoked without parameters (give help) 
* Let gzip --list reject files not in gzip format even with --force. 
* Don't complain about non gzip files for options -rt or -rl. 
* Added advice in INSTALL for several systems. 
 
Major changes from 1.2.2 to 1.2.3 
* Don't display the output name when decompressing except with --verbose. 
* Remove usage of alloca in getopt.c and all makefiles. 
* Added the zfile shell script in subdirectory sample. 
* Moved the list of compiler bugs from README to INSTALL. 
* Added vms/Readme.vms. 
 
Major changes from 1.2.1 to 1.2.2 
* Fix a compilation error on Sun with cc (worked with gcc). 
 
Major changes from 1.2 to 1.2.1 
* Let zmore act as more if the data is not gzipped. 
* made gzexe more secure (don't rely on PATH). 
* By default, display output name only when the name was actually truncated. 
 
Major changes from 1.1.2 to 1.2 
* Added the --list option to display the file characteristics. 
* Added the --no-name option: do not save or restore original filename 
  Save the original name by default. 
* Allow gunzip --suffix "" to attempt decompression on any file 
  regardless of its extension if an original name is present. 
* Add support for the SCO compress -H format. 
* gzip --fast now compresses faster (speed close to that of compress) 
  with degraded compression ratio (but still better than compress). 
  Default level changed to -6 (acts exactly as previous level -5) to 
  be a better indication of its placement in the speed/ratio range. 
* Use smart name truncation: 123456789012.c -> 123456789.c.gz 
   instead of 12345678901.gz 
* 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. 
* 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. 
 
Major changes from 1.1.1 to 1.1.2. 
* Fix serious bug for VMS (-gz not removed when decompressing). 
* Allow suffix other than .gz in znew. 
* Do not display compression ratio when decompressing stdin. 
* In zmore.in, work around brain damaged stty -g (Ultrix). 
* Display a correct compression ratio for .Z files. 
* Added .z to .gz renaming script in INTALL. 
* Allow setting CFLAGS in configure. 
 
Major changes from 1.1 to 1.1.1. 
* Fix serious bug in vms.c (affects Vax/VMS only). 
* Added --ascii option. 
* Add workaround in configure.in for Ultrix (quote eval argument) 
 
Major changes from 1.0.7 to 1.1. 
* Use .gz suffix by default, add --suffix option. 
* Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS). 
* Quit when reading garbage from stdin instead of reporting an error. 
* Added makefile for VAX/MMS and support for wildcards on VMS. 
* Added support for MSC under OS/2. 
* Added support for Prime/PRIMOS. 
* Display compression ratio also when decompressing (with --verbose). 
* Quit after --version (GNU standard) 
* Use --force to bypass isatty() check 
* Continue processing other files in case of recoverable error. 
* Added comparison of zip and gzip in the readme file. 
* Added small sample programs (ztouch, sub, add) 
* Use less memory when compiled with -DSMALL_MEM (for MSDOS). 
* Remove the "off by more than one minute" time stamp kludge 
 
Major changes from 1.0.6 to 1.0.7. 
* Allow zmore to read from standard input (like more). 
* Support the 68000 (Atari ST) in match.S. 
* Retry partial writes (required on Linux when gzip is suspended in a pipe). 
* Allow full pathnames and renamings in gzexe. 
* Don't let gzexe compress setuid executables or gzip itself. 
* Added vms/Makefile.gcc for gcc on the Vax. 
* Allow installation of binaries and shell scripts in different dirs. 
* Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more") 
* Allow installation of zcat as gzcat. 
* Several small changes for portability to old or weird systems. 
* Suppress help message and send compressed data to the terminal when 
  gzip is invoked without parameters and without redirection. 
*  Add compile option GNU_STANDARD to respect the GNU coding standards: 
   with -DGNU_STANDARD, behave as gzip even if invoked under the name gunzip. 
(I don't like the last two changes, which were requested by the FSF.) 
 
Major changes from 1.0.5 to 1.0.6. 
* Let gzexe detect executables that are already gzexe'd. 
* Keep file attributes in znew and gzexe if cpmod is available. 
* Don't try restoring record format on VMS (1.0.5 did not work correctly) 
* Added asm version for 68000 in amiga/match.a. 
  Use asm version for Atari TT and NeXT. 
* For OS/2, assume HPFS by default, add flag OS2FAT if necessary. 
* Fixed some bugs in zdiff and define zcmp as a link to zdiff. 
 
 
Major changes from 1.0.4 to 1.0.5. 
* For VMS, restore the file type for variable record format, otherwise 
    extract in fixed length format (not perfect, but better than 
    forcing all files to be in stream_LF format). 
* For VMS, use "-z" default suffix and accept a version number in file names. 
* For Unix, allow compression of files with name ending in 'z'. Use only 
  .z, .*-z, .tgz, .taz as valid gzip extensions. In the last two cases, 
  extract to .tar by default. 
* On some versions of MSDOS, files with a 3 character extension could not 
  be compressed. 
* Garbage collect files in /tmp created by gzexe. 
* Fix the 'OS code' byte in the gzip header. 
* For the Amiga, add the missing utime.h and add support for gcc. 
 
 
Major changes from 1.0.3 to 1.0.4. 
* Added optimized asm version for 68020. 
* Add support for DJGPP. 
	 
* Add support for the Atari ST. 
* Added zforce to rename gzip'ed files with truncated names. 
* Do not install with name uncompress (some systems rely on the 
  absence of any check in the old uncompress). 
* Added missing function (fcfree) in msdos/tailor.c 
* Let gunzip handle .tgz files, and let gzip skip them. 
* Added -d option (decompress) for gzexe and try preserving file permissions. 
* Suppress all warnings with -q. 
* Use GZIP_OPT for VMS to avoid conflict with program name. 
* ... and many other small changes (see ChangeLog) 
 
 
Major changes from 1.0.2 to 1.0.3 
* Added -K option for znew to keep old .Z files if smaller 
* Added -q option (quiet) to cancel -v in GZIP env variable. 
* Made gzexe safer on systems with filename limitation to 14 chars. 
* Fixed bugs in handling of GZIP env variable and incorrect free with Turbo C. 
 
 
Major changes from 1.0.1 to 1.0.2 
* Added env variable GZIP for default options. Example: 
   for sh:   GZIP="-8 -v"; export GZIP 
   for csh:  setenv GZIP "-8 -v" 
* Added support for the Amiga. 
* znew now keeps the old .Z if it is smaller than the .z file. 
  This can happen for some large and very redundant files. 
* Do not complain about trailing garbage for record oriented IO (Vax/VMS). 
  This implies however that multi-part gzip files are not supported 
  on such systems. 
* Added gzexe to compress rarely used executables. 
* Reduce memory usage (required for MSDOS and useful on all systems). 
* Preserve time stamp in znew -P (pipe option) if touch -r works. 
 
 
Major changes from 1.0 to 1.0.1 
* fix trivial errors in the Borland makefile (msdos/Makefile.bor) 
 
 
Major changes from 0.8.2 to 1.0 
* gzip now runs on Vax/VMS 
* gzip will not not overwrite files without -f when using /bin/sh in 
  background. 
* Support the test option -t for compressed (.Z) files. 
  Allow some data recovery for bad .Z files. 
* Added makefiles for MSDOS (Only tested for MSC, not Borland). 
* still more changes to configure for several systems 
 
 
Major changes from 0.8.1 to 0.8.2: 
* yet more changes to configure for Linux and other systems 
* Allow zcat on a file with multiple links. 
 
 
Major changes from 0.8 to 0.8.1: 
* znew has now a pipe option -P to reduce the disk space requirements, 
  but this option does not preserve timestamps. 
* Fixed some #if directives for compilation with TurboC. 
 
 
Major changes from 0.7 to 0.8: 
* gzip can now extract .z files created by 'pack'. 
* configure should no longer believe that every machine is a 386 
* Fix the entry for /etc/magic in INSTALL. 
* Add patch for GNU tar 1.11.1 and a pointer to crypt++.el 
* Uncompress files with multiple links only with -f. 
* Fix for uncompress of .Z files on 16-bit machines 
* Create a correct output name for file names of exactly N-1 chars when 
  the system has a limit of N chars. 
 
 
Major changes from 0.6 to 0.7: 
* Use "make check" instead of "make test". 
* Keep time stamp and pass options to gzip in znew. 
* Do not create .z.z files with gzip -r. 
* Allow again gunzip .zip files (was working in 0.5) 
* Allow again compilation with TurboC 2.0 (was working in 0.4) 
 
 
Major changes form 0.5 to 0.6: 
* gunzip reported an error when extracting certain .z files. The .z files 
  produced by gzip 0.5 are correct and can be read by gunzip 0.6. 
* gunzip now supports multiple compressed members within a single .z file. 
* Fix the check for i386 in configure. 
* Added "make test" to check for compiler bugs. (gcc -finline-functions 
  is broken at least on the NeXT.) 
* Use environment variable PAGER in zmore if it is defined. 
* Accept gzcat in addition to zcat for people having /usr/bin before 
  /usr/local/bin in their path.