ANN: C-Blosc 1.18.0 released

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Francesc Alted

Mar 29, 2020, 9:15:01 AM3/29/20
to Blosc,, Bcolz
 Announcing C-Blosc 1.18.0
 A blocking, shuffling and lossless compression library for C

What is new?

A maintenance release where the copy of the leftovers of a chunk when
its size is not a multiple of typesize.  Although this is a very unusual
situation, it can certainly happen (e.g.

For more info, please see the release notes in:

What is it?

Blosc ( is a high performance meta-compressor
optimized for binary data.  It has been designed to transmit data to
the processor cache faster than the traditional, non-compressed,
direct memory fetch approach via a memcpy() OS call.

Blosc has internal support for different compressors like its internal
BloscLZ, but also LZ4, LZ4HC, Snappy, Zlib and Zstd.  This way these can
automatically leverage the multithreading and pre-filtering
(shuffling) capabilities that comes with Blosc.

Download sources

The github repository is over here:

Blosc is distributed using the BSD license, see LICENSES/BLOSC.txt for

Mailing list

There is an official Blosc mailing list at:

Enjoy Data!

Francesc Alted

Francesc Alted

Mar 29, 2020, 9:24:19 AM3/29/20
to Blosc,, Bcolz
Oops.  Due to a mistake (I forgot to update the symbols for the new version in blosc.h), I had to release 1.18.1, which is essentially the same than 1.18.0.

Sorry about the inconvenience!
Francesc Alted
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