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[Lzip-bug] Clzip 1.10 released
Antonio Diaz Diaz
[Lzip-bug] Clzip 1.10 released
Sat, 10 Feb 2018 19:13:17 +0100
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I am pleased to announce the release of clzip 1.10.
Clzip is a C language version of lzip, fully compatible with lzip-1.4 or
newer. As clzip is written in C, it may be easier to integrate in
applications like package managers, embedded devices, or systems lacking
a C++ compiler.
Lzip is a lossless data compressor with a user interface similar to the
one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0),
or compress most files more than bzip2 (lzip -9). Decompression speed is
intermediate between gzip and bzip2. Lzip is better than gzip and bzip2
from a data recovery perspective.
The lzip file format is designed for data sharing and long-term
archiving, taking into account both data integrity and decoder availability.
The homepage is at http://www.nongnu.org/lzip/clzip.html
The sources can be downloaded from
The sha256sums are:
This release is also GPG signed. You can download the signature by
appending '.sig' to the URL. If the 'gpg --verify' command fails because
you don't have the required public key, then run this command to import it:
gpg --keyserver keys.gnupg.net --recv-keys 8FE99503132D7742
Key fingerprint = 1D41 C14B 272A 2219 A739 FA4F 8FE9 9503 132D 7742
Changes in version 1.10:
* The option '--loose-trailing', has been added.
* The test used by clzip to discriminate trailing data from a corrupt
header in multimember or concatenated files has been improved to a
Hamming distance (HD) of 3, and the 3 bit flips must happen in different
magic bytes for the test to fail. As a consequence some kinds of files
no longer can be appended to a lzip file as trailing data unless the
'--loose-trailing' option is used when decompressing.
Lziprecover can be used to remove conflicting trailing data from a file.
* The contents of a corrupt or truncated header found in a
multimember file are now shown, after the error message, in the same
format as trailing data.
* Option '-S, --volume-size' now keeps input files unchanged.
* When creating multimember files or splitting the output in volumes,
the dictionary size is now adjusted for each member individually.
* The 'bits/byte' ratio has been replaced with the inverse
compression ratio in the output.
* The progress of decompression is now shown at verbosity level 2
(-vv) or higher.
* Progress of (de)compression is only shown if stderr is a terminal.
* A final diagnostic is now shown at verbosity level 1 (-v) or higher
if any file fails the test when testing multiple files.
* A second '.lz' extension is no longer added to the argument of '-o'
if it already ends in '.lz' or '.tlz'.
* In case of (de)compressed size mismatch, the stored size is now
also shown in hexadecimal to ease visual comparison.
* The dictionary size is now shown at verbosity level 4 (-vvvv) when
decompressing or testing.
* The new chapter "Meaning of clzip's output" has been added to the
Please send bug reports and suggestions to address@hidden
Antonio Diaz, clzip author and maintainer.
If you are distributing software in xz format, please consider using
lzip instead. See http://www.nongnu.org/lzip/lzip_benchmark.html#xz1 and
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