version 1.7.1

• Fix a bug where flushing files when writing in threaded mode did not work
  properly.
• Prevent threaded opening from blocking python exit when an error is thrown
  in the calling thread.

version 1.7.0

• Include a patched ISA-L version 2.31. The applied patches make compilation
  and wheelbuilding on MacOS ARM64 possible.
• Fix a bug where READ and WRITE in isal.igzip were inconsistent with the
  values in gzip on Python 3.13
• Small simplifications to the igzip.compress function, which should lead
  to less overhead.

version 1.6.1

• Fix a bug where streams that were passed to igzip_threaded.open where closed.

Version 1.6.0

• Fix a bug where compression levels for IGzipFile where checked in read mode.
• Update statically linked ISA-L release to 2.31.0
• Fix an error that occurred in the __close__ function when a threaded
  writer was initialized with incorrect parameters.

Version 1.5.3

• Fix a bug where append mode would not work when using
  igzip_threaded.open.

Version 1.5.2

• Fix a bug where a filehandle remained opened when igzip_threaded.open
  was used for writing with a wrong compression level.
• Fix a memory leak that occurred when an error was thrown for a gzip header
  with the wrong magic numbers.
• Fix a memory leak that occurred when isal_zlib.decompressobj was given a
  wrong wbits value.

Version 1.5.1

• Fix a memory leak in the GzipReader.readall implementation.

Version 1.5.0

• Make a special case for threads==1 in igzip_threaded.open for writing
  files. This now combines the writing and compression thread for less
  overhead.
• Maximize time spent outside the GIL for igzip_threaded.open writing.
  This has decreased wallclock time significantly.

Version 1.4.1

• Fix several errors related to unclosed files and buffers.

Version 1.4.0

• Drop support for python 3.7 and PyPy 3.8 as these are no longer supported.
  Add testing and support for python 3.12 and PyPy 3.10.
• Added an experimental isal.igzip_threaded module which has an
  open function.
  This can be used to read and write large files in a streaming fashion
  while escaping the GIL.
• The internal igzip._IGzipReader has been rewritten in C. As a result the
  overhead of decompressing files has significantly been reduced and
  python -m isal.igzip is now very close to the C igzip application.
• The igzip._IGZipReader in C is now used in igzip.decompress. The
  _GzipReader also can read from objects that support the buffer protocol.
  This has reduced overhead significantly.