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[Lzip-bug] Plzip 1.2 released

From: Antonio Diaz Diaz
Subject: [Lzip-bug] Plzip 1.2 released
Date: Mon, 15 Sep 2014 18:59:14 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905

I am pleased to announce the release of plzip 1.2.

Plzip is a massively parallel (multi-threaded) lossless data compressor based on the lzlib compression library, with a user interface similar to the one of lzip, bzip2 or gzip.

Plzip can compress/decompress large files on multiprocessor machines much faster than lzip, at the cost of a slightly reduced compression ratio. Note that the number of usable threads is limited by file size; on files larger than a few GB plzip can use hundreds of processors, but on files of only a few MB plzip is no faster than lzip.

Plzip uses the lzip file format; the files produced by plzip are fully compatible with lzip-1.4 or newer.

The lzip file format is designed for data sharing and long-term archiving. It is clean, provides very safe 4 factor integrity checking, and is backed by the recovery capabilities of lziprecover.

The homepage is at http://www.nongnu.org/lzip/plzip.html

The sources can be downloaded from

Please, note that I have created the subdirectory 'plzip' in order to leave every tarball in its place "permanently" (instead of moving old tarballs to the "old" directory). This will break some things now (like watch files), but I have been told that it will be easier for distros this way. Sorry for the inconveniences.

The sha1sums are:
f7bf4e78751a6269d787a3a0248327201c3cc911  plzip-1.2.tar.lz
072f3253322ed36f96d452931780eea3dc7ec494  plzip-1.2.tar.gz

This release is also GPG signed. You can download the signature by appending ".sig" to the URL.

Changes in version 1.2:

* Copying of file dates, permissions, and ownership now behaves like "cp -p". (If the user ID or the group ID can't be duplicated, the file permission bits S_ISUID and S_ISGID are cleared).

* Individual limits have been set on the number of packets produced by each decompresor worker thread to limit the amount of memory used in all cases.

* The approximate amount of memory required has been documented in the manual.

  * "plzip.texinfo" has been renamed to "plzip.texi".

  * The license has been changed to GPL version 2 or later.

Please send bug reports and suggestions to address@hidden

Antonio Diaz, plzip co-author and maintainer.

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