Changes from 1.20.1 to 1.21.0
-
Updated zstd codec to 1.4.8.
-
Updated lz4 codec to 1.9.3.
-
New instructions on how to use the libraries in python-blosc wheels
so as to compile C-Blosc applications. See:
https://github.com/Blosc/c-blosc/blob/master/COMPILING_WITH_WHEELS.rst
Assets
2
Changes from 1.20.0 to 1.20.1
- Added
<unistd.h>in vendored zlib 1.2.8 for compatibility with Python 3.8 in recent Mac OSX. For details, see: Blosc/python-blosc#229.
Assets
2
Changes from 1.19.1 to 1.20.0
-
More saftey checks have been implemented so that potential flaws
discovered by new fuzzers in OSS-Fuzzer are fixed now. Thanks to
Nathan Moinvaziri (@nmoinvaz). -
BloscLZ updated to 2.3.0. Expect better compression ratios for faster
codecs. For details, see our new blog post:
https://blosc.org/posts/beast-release/ -
Fixed the
_xgetbv()collision. Thanks to Michał Górny (@mgorny). -
The chunk format has been fully described so that 3rd party software
may come with a different implementation, but still compatible with
C-Blosc chunks.
Assets
2
Changes from 1.18.1 to 1.19.0
-
The length of automatic blocksizes for fast codecs (lz4, blosclz) has
been incremented quite a bit (up to 256 KB) for better compression ratios.
The performance in modern CPUs (with at least 256 KB in L2 cache) should
be better too (for older CPUs the performance should stay roughly the same). -
Continuous integration has been migrated to GitHub actions and much
more scenarios are tested (specially linking with external codecs).
Also, a new OSS-Fuzz workflow has been added for increased detection
of possible vulnerabilities. Thanks to Nathan Moinvaziri. -
For small buffers that cannot be compressed (typically < 128 bytes),
blosc_compress()returns now a 0 (cannot compress) instead of a negative
number (internal error). See #294.
Thanks to @kalvdans for providing the initial patch. -
blosclz codec updated to 2.1.0. Expect better compression ratios and
performance in a wider variety of scenarios. -
blosc_decompress_unsafe(),blosc_decompress_ctx_unsafe()and
blosc_getitem_unsafe()have been removed because they are dangerous
and after latest improvements, they should not be used in production. -
zstd codec updated to 1.4.5.
-
Conan packaging has been deprecated (from now on, we should try
to focus on supporting wheels only).
Assets
2
Changes from 1.17.1 to 1.18.1
- Fixed the copy of the leftovers of a chunk when its size is not a
multiple of the typesize. Although this is a very unusual situation,
it can certainly happen (e.g. Blosc/python-blosc#220).
Assets
2
Changes from 1.17.1 to 1.18.0
- Fixed the copy of the leftovers of a chunk when its size is not a
multiple of the typesize. Although this is a very unusual situation,
it can certainly happen (e.g.
Blosc/python-blosc#220).
Assets
2
Changes from 1.17.0 to 1.17.1
-
Zstd codec updated to 1.4.4.
-
LZ4 codec updated to 1.9.2.
Assets
2
Changes from 1.16.3 to 1.17.0
-
LZ4 codec updated to 1.9.1.
-
Zstd codec updated to 1.4.1.
-
BloscLZ codec updated to 2.0.0. Although this should be fully backward
compatible, it contains important changes that affects mainly speed, but
also compression ratios. Feedback on how it behaves on your own data is
appreciated.