I'm happy to announce the availability of Blosc 1.2.0 RC1. It exists 
currently just as a tag in the github repo 
(https://github.com/FrancescAlted/blosc), so you can fetch it as:


If everything goes well, I plan to do an official release in a week or so.

Enjoy data!


  Announcing Blosc 1.2.0 RC1
  A blocking, shuffling and lossless compression library

What is new?

The most important features for this release are support for cmake 
(tested on
Linux, Mac OSX and Windows) and thread safety calls of Blosc functions from
threaded apps.

Many thanks for those who contributed to this release: Thibault North, 
Valentino, Mark Wiebe and Valentin Haenel.

For more info, please see the release notes in:


What is it?

Blosc (http://www.blosc.org) is a high performance 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 is the first compressor (that I'm aware of) that is meant not
only to reduce the size of large datasets on-disk or in-memory, but
also to accelerate object manipulations that are memory-bound.

There is also a handy command line for Blosc called Bloscpack
(https://github.com/esc/bloscpack) that allows you to compress large binary
datafiles on-disk.  Although the format for Bloscpack has not stabilized 
it allows you to effectively use Blosc from you favorite shell.

Download sources

For more details on what it is, please go to main web site:


The github repository is over here:


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

Mailing list

There is an official Blosc blosc mailing list at:


Francesc Alted

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