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CHANGELOG.rst

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Changelog

version 0.5.1

  • Fix a bug where flushing in threaded mode did not write the data to the output file.
  • Threaded reading and writing do no longer block exiting when an exception occurs in the main thread.

version 0.5.0

  • Wheels are now build for MacOS arm64 architectures.
  • Fix a bug where READ and WRITE in zlib_ng.gzip_ng were inconsistent with the values in gzip on Python 3.13
  • Small simplifications to the gzip_ng.compress and gzip_ng.decompress functions, which should lead to less overhead.

version 0.4.3

  • Fix a bug where files larger than 4GB could not be decompressed.

version 0.4.2

  • Fix a reference counting error that happened on module initialization and triggered an error in the CPython debug build.
  • Fix a setup.py error that was triggered on MacOS ARM64.

version 0.4.1

  • Fix a bug where streams that were passed to gzip_ng_threaded.open where closed.
  • Fix compatibility with Python 3.13

version 0.4.0

  • Add a gzip_ng_threaded module that contains the gzip_ng_threaded.open function. This allows using multithreaded compression as well as escaping the GIL.
  • The internal gzip_ng._GzipReader has been rewritten in C. As a result the overhead of decompressing files has significantly been reduced.
  • The gzip_ng._GzipReader in C is now used in gzip_ng.decompress. The _GzipReader also can read from objects that support the buffer protocol. This has reduced overhead significantly.
  • Fix some unclosed buffer errors in the gzip_ng CLI.

version 0.3.0

  • Source distributions on Linux now default to building with configure and make as it is faster and has less dependencies than CMake.
  • Python 3.12 support was added. Python 3.7 support was dropped as it is end of life.
  • Enabled installation on BSD
  • Update embedded zlib-ng version to 2.1.5. This comes with some speed improvements and changes with regards to the compression levels. Also several bugs were fixed. For full details checkout the zlib-ng 2.1.2 release notes as well as those for the bugfix releases 2.1.3, 2.1.4 and 2.1.5.

version 0.2.0

  • Update embedded zlib-ng version to 2.0.7
  • Escape GIL for adler32 and crc32 functions.

version 0.1.0

  • Build wheels for all three major operating systems.
  • Add a fully featured gzip application in python m zlib_ng.gzip_ng.
  • Port Cpython's gzip module to use zlib-ng.
  • Port CPython's zlib module to use zlib-ng.
  • Use zlib-ng version 2.0.6 as included statically linked version.