ANN: C-Blosc 1.20.1 released!

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Francesc Alted

Sep 8, 2020, 11:26:46 AM9/8/20
to Blosc,
 Announcing C-Blosc 1.20.1
 A blocking, shuffling and lossless compression library for C

What is new?

This is a maintenance release.  Vendored zlib 1.2.8 is now compatible
with Python 3.8 in recent Mac OSX.  For details, see:

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
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