4.1.0: 17/01/2023

This version of hdf5plugin provides 2 new filters: Blosc2 and SZ3.

What's Changed

• New compression filters:

  • Added SZ3 filter (PR #224, #241, #242, #243, #246)
  • Added Blosc2 filter (PR #201, #249, #253, #255)

• Updated filters:

  • Updated bitshuffle (v0.5.1) (PR #251)
  • Updated c-blosc (v1.21.2) and LZ4 compression library (v1.9.4) (PR #250)

• Build:

  • Added build configuration environment variables:

    • HDF5PLUGIN_CPP14 for SZ3 (PR #242)
    • HDF5PLUGIN_BMI2 for Zstd compression library (PR #247)
    • HDF5PLUGIN_INTEL_IPP_DIR for Blosc2 filter and LZ4 compression library (PR #252)

  • Added Intel IPP optional support for LZ4 compression (PR #252)

  • Refactored build (PR #233, #240, #248, #255, #257)

• Misc.:

  • Updated documentation (PR #256, #259)

Full Changelog: v4.0.1...v4.1.0

4.0.1: 2022/12/06

This is a bug-fix release:

What's Changed

• Updated embedded version of SZ to fix a compression issue under Windows (PR #231)
• Updated tests to pass with older versions of bitshuffle (PR #235)
• Improved HDF5 function wrapper (PR #228)
• Fixed and updated documentation (PR #223, #232, #238)

Full Changelog: v4.0.0...v4.0.1

4.0.0: 2022/11/28

This version of hdf5plugin requires at least Python >= v3.7 (PR #210).

While the provided plugin filters are backwards compatible, this version includes an updated version of the H5Z-ZFP filter (v1.1.0). This version of the filter can read data compressed by previous versions but newly ZFP-compressed data cannot be read by older versions (PR #190).

What's Changed

• New compression filters:

  • Added SZ filter (PR #203, #206, #209, #213, #215)
  • Added BZip2 filter (PR #182)

• New functions:

  • Added get_config() function to retrieve build information and currently registered filters (PR #187)
  • Added get_filters() function to retrieve selected compression filter helper class (PR #212)
  • Added register() function to force registration of provided filters (PR #208, #212)

• Deprecations:

  • Bitshuffle's lz4 argument: Use cname argument instead (PR #171)
  • config: use get_config() function instead (PR #210)
  • date, hexversion and strictversion (PR #217)

• Updated filters:

  • Updated snappy library to v1.1.9 (used by the blosc filter) (PR #192)
  • Updated Zfp filter to HZ5-ZFP v1.1.0 and ZFP v1.0.0 (PR #190)
  • Updated Bitshuffle filter to v0.4.2 (PR #171)
  • Updated c-blosc to commit 9dc93b1 and zstd to v1.5.2 (PR #200)

• Build:

  • Updated HDF5PLUGIN_STRIP environment variable behaviour and added support for "all" value (PR #188)
  • Added optimisation flags for the blosc filter compilation (PR #180)
  • Added check of native flags availability (PR #189)

• Misc.:

  • Updated project to use Python >3.7 (PR #210)
  • Code reorganisation, clean-up, code style (PR #191, #205, #217)
  • Updated documentation (PR #184, #196, #199, #211, #218)
  • Updated continuous integration tests (PR #198)

New Contributors

• @orioltinto made their first contribution in #209

Full Changelog: v3.3.1...v4.0.0

3.3.1: 2022/06/03

What's Changed

• Fixed LZ4 filter compilation with HDF5PLUGIN_HDF5_DIR (PR #178)
• Renamed PLUGINS_PATH constant to PLUGIN_PATH without S (PR #179)
• Added notebook of European HUG meeting 2022 (PR #176)
• Updated changelog and version (PR #181)

Full Changelog: v3.3.0...v3.3.1

3.3.0: 2022/05/25

What's Changed

• Deprecated build options passed as arguments to setup.py, use environment variables instead (PR #167)
• Updated LZ4 filter to latest available code and LZ4 compression v1.9.3 (PR #172)
• Added clevel argument to Zstd (PR #164)
• Added config.embedded_filters to advertise embedded filters, and HDF5PLUGIN_STRIP to configure it during the build (PR #169)
• Added -v option to python -m hdf5plugin.test (PR #166)
• Changed "filter already loaded, skip it." log message from warning to info (PR #168)
• Updated build, now using pyproject.toml (PR #167, #173)
• Updated changelog and version (PR #174)

New Contributors

• @mkitti made their first contribution in #164

Full Changelog: v3.2.0...v3.3.0

3.2.0: 2021/10/15

• Updated libraries: blosc v1.21.1 (lz4 v1.9.3, zlib v1.2.11, zstd v1.5.0), snappy v1.1.8 (PR #152, #156)
• Fixed compilation issue occuring on ppc64le in conda-forge (PR #154)
• Documentation: Added European HDF User Group presentation (PR #150) and updated changelog (PR #155)

3.1.1: 2021/07/07

This is a bug fix release:

• Fixed hdf5plugin when installed as a Debian/Ubuntu package (PR #147)
• Fixed and updated documentation (PR #143, #148)

3.1.0: 2021/07/02

This version of hdf5plugin requires Python3 adds mips64 supports and improves support for other architectures.

• Added support of mips64 architecture (PR #126)
• Added enhanced documentation based on sphinx hosted at http://www.silx.org/doc/hdf5plugin/latest/ and on readthedocs.org (PR #137, #139, #141)
• Fixed LZ4 filter by downgrading used lz4 algorithm implementation (PR #123)
• Fixed python setup.py install (PR #125, #130)
• Improved build options support (PR #125, #130, #135, #140)
• Improved tests (PR #128, #129, #132)
• Cleaned-up python2 compatibility code (PR #134)
• Updated project description/metadata: Added Python3.9, python_requires, updated status to "Stable" (PR #119, #127, #138)
• Updated CHANGELOG and version (PR #142)

3.0.0

This version of hdf5plugin requires Python3 and supports arm64 architecture.

• Stopped Python2.7 support (PR #104, #105)
• Added support of arm64 architecture (PR #116)
• Added Zstd filter to the supported plugin list (PR #106)
• Added hdf5plugin.config to retrieve build options at runtime (PR #113)
• Added support of build configuration through environment variables (PR #116)
• Fixed FciDecomp error message when built without c++11 (PR #113)
• Updated blosc compile flags (-std-c99) to build for manylinux1 (PR #109)
• Updated c-blosc to v1.20.1 (PR #101)
• Updated: continuous integration (PR #104, #111), project structure (PR #114, #118), changelog (PR #117)

2.3.2

This is the last version of hdf5plugin supporting Python 2.7.

• Enabled SIMD on power9 for bitshuffle filter (PR #90)
• Added github actions continous intergration (PR #99)
• Added debian/ubuntu packaging support (PR #87)
• Fixed compilation under macos10.15 with Python 3.8 (PR #102)
• Fixed numpy 1.20 deprecation warning (PR #97)
• Updated CHANGELOG and version (PR #91, #103)