7.0.0: 25/06/2026

What's Changed

This release includes a change of major version of the embedded c-blosc2 library.

• Added hd5plugin.from_filter_options(filter_id, filter_options) function to create filter instances from hdf5 "cd_values" (PR #366)

• Added hdf5plugin.FilterBase.get_config() method to retrieve parameters as a dict and repr support (PR #373, #376)

• Added support of negative compression levels to hdf5plugin.Zstd (PR #395)

• Fixed type checker re-export compatibility by adding __all__ to __init__.py (PR #381)

• Fixed Bitshuffle's clevel argument supported range (PR #384)

• Updated compression filters:

  • blosc2 hdf5 filter (commit e4d0f58) (PR #383)
  • LZ4 hdf5 filter: Use HDFGroup version (PR #394)
  • Zstd hdf5 filter: Use HDFGroup version (PR #395)

• Updated compression libraries:

  • c-blosc2 library: Change of major version (v3.1.4) (PR #378, #387, #392)
  • SPERR library (v0.8.5) (PR #383)
  • SZ library (commit 308bd06) (PR #392)

• Build:

  • Fixed name of bzip2 plugin (PR #367)
  • Fixed deprecation warning when building wheel (PR #390)
  • Fixed building plugins against libhdf5 v2 (PR #391, #399)

• Misc.:

  • Added tests for variable-width strings support (PR #363)
  • Updated CI release workflow (PR #374, #396)
  • Updated documentation (PR #393, #398)
  • Updated code format/check with ruff (PR #400)

New Contributors

• @crusaderky made their first contribution in #363
• @tiltingpenguin made their first contribution in #367
• @riccardoratta made their first contribution in #381
• @payno made their first contribution in #398

Full Changelog: v6.0.0...v7.0.0