* Updated: gzip 1.11
@ 2021-09-04 18:32 Cygwin gzip Co-Maintainer
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From: Cygwin gzip Co-Maintainer @ 2021-09-04 18:32 UTC (permalink / raw)
To: Cygwin Announcements
The following packages have been upgraded in the Cygwin distribution:
* gzip 1.11
GNU gzip is a popular data compression program, developed to
replace compress because of patents covering the LZW algorithm
at the time, with better compression as a bonus.
For more information see the project home pages:
https://www.gnu.org/software/gzip/
https://sv.gnu.org/projects/gzip/
For changes since the previous Cygwin release please see below or read
/usr/share/doc/gzip/NEWS after installation; for complete details see:
/usr/share/doc/gzip/ChangeLog
https://git.sv.gnu.org/gitweb/?p=gzip.git;a=log;h=refs/tags/v1.11
Noteworthy changes in release 1.11 (2021-09-03) [stable]
* Bug fixes
* Documentation improvements
* Performance improvements
* Infrastructure upgrades
Noteworthy changes in release 1.10 (2018-12-29) [stable]
* Changes in behavior
Compressed gzip output no longer contains the current time as a
timestamp when the input is not a regular file. Instead, the output
contains a null (zero) timestamp. This makes gzip's behavior more
reproducible when used as part of a pipeline. (As a reminder, even
regular files will use null timestamps after the year 2106, due to a
limitation in the gzip format.)
* Bug fixes
A use of uninitialized memory on some malformed inputs has been fixed.
[bug present since the beginning]
A few theoretical race conditions in signal handers have been fixed.
These bugs most likely do not happen on practical platforms.
[bugs present since the beginning]
Noteworthy changes in release 1.9 (2018-01-07) [stable]
* Bug fixes
gzip -d -S SUFFIX file.SUFFIX would fail for any upper-case byte in SUFFIX.
E.g., before, this command would fail:
$ :|gzip > kT && gzip -d -S T kT
gzip: kT: unknown suffix -- ignored
[bug present since the beginning]
When decompressing data in 'pack' format, gzip no longer mishandles
leading zeros in the end-of-block code. [bug introduced in gzip-1.6]
When converting from system-dependent time_t format to the 32-bit
unsigned MTIME format used in gzip files, if a timestamp does not
fit gzip now substitutes zero instead of the timestamp's low-order
32 bits, as per Internet RFC 1952. When converting from MTIME to
time_t format, if a timestamp does not fit gzip now warns and
substitutes the nearest in-range value instead of crashing or
silently substituting an implementation-defined value (typically,
the timestamp's low-order bits). This affects timestamps before
1970 and after 2106, and timestamps after 2038 on platforms with
32-bit signed time_t. [bug present since the beginning]
Commands implemented via shell scripts are now more consistent about
failure status. For example, 'gunzip --help >/dev/full' now
consistently exits with status 1 (error), instead of with status 2
(warning) on some platforms. [bug present since the beginning]
Support for VMS and Amiga has been removed. It was not working anyway,
and it reportedly caused file name glitches on MS-Windowsish platforms.
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2021-09-04 18:32 Updated: gzip 1.11 Cygwin gzip Co-Maintainer
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