Release Notes: The new utility zupdate, which recompresses bzip2, gzip, and xz files to lzip format, has been added. The zutils executable has been removed. All utilities are now independent executables. The exit status of zgrep should now be identical to that of grep. "zutils.texinfo" has been renamed to "zutils.texi".
Release Notes: The new options "--bz2", "--gz", "--lz" and "--xz" have been added to all utilities. Zutils now provides the runtime configuration file "zutilsrc", which allows the user change the compressor to be used for each format. The checking of the exit status of compressors has been improved. The use of "decompressed" and "uncompressed" in the documentation has been revised.
Release Notes: A new "--format" option has been added to all utilities. Zgrep no longer prefixes the file name to the output by default when searching one file and "--recursive" has not been selected. The output of "zgrep -L" has been fixed (it behaved like "zgrep -l"). A deadlock in zcmp, which happens when the "-n" option was used, has been fixed. Decompressors are now invoked without the "-q" option except when explicitly requested. Quote characters in messages have been changed as advised by GNU Coding Standards. "configure" now accepts options with a separate argument.