Update dependency msgpack to v1.2.1 - #11

v1.2.1

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Release Date: 2026-06-19

Fix a segfault when calling Unpacker.unpack() or Unpacker.skip() after an unpacking failure.
But note that reusing the same Unpacker instance after an unpacking failure is not supported.
Please create a new Unpacker instance instead. GHSA-6v7p-g79w-8964

v1.2.0

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Release Date: 2026-06-11

• Support free threaded Python. #​654, #​686
• Dropped support for Python 3.9. #​656
• Fix missing error checks in C code. #​665, #​666, #​667, #​672
• Fix strict_map_key option didn't work for object_pairs_hook. #​673
• Increase DEFAULT_RECURSE_LIMIT of Unpacker to 1024. #​676
• Fix memory leak when Unpacker returns error for invalid input. #​671
• Fix Packer.pack_ext_type() ignored autoreset option. #​663
• Fix Timestamp.from_datetime() returning wrong value for pre-epoch datetimes. #​662
• Fix use-after-free in unpackb() and Unpacker.unpack() for non-contiguous input. #​677
• Fix possible memory leak when calling Unpacker.__init__() several times. #​687

v1.1.2

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Release Date: 2025-10-08

This release does not change source code. It updates only building
wheels:

• Update Cython to v3.1.4
• Update cibuildwheel to v3.2.0
• Drop Python 3.8
• Add Python 3.14
• Add windows-arm

v1.1.1

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Release Date: 2025-06-13

• No change from 1.1.1rc1.

v1.1.0

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Release Date: 2024-09-10

• use PyLong_* instead of PyInt_* for compatibility with future
  Cython. (#​620)

v1.0.8

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Release Date: 2024-03-01

• Update Cython to 3.0.8. This fixes memory leak when iterating
  Unpacker object on Python 3.12.
• Do not include C/Cython files in binary wheels.

v1.0.7

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Release Date: 2023-09-28

• Fix build error of extension module on Windows. (#​567)
• setup.py doesn't skip build error of extension module. (#​568)

v1.0.6

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Release Date: 2023-09-21

[!NOTE]
v1.0.6 Wheels for Windows don't contain extension module. Please
upgrade to v1.0.7 or newer.

• Add Python 3.12 wheels (#​517)
• Remove Python 2.7, 3.6, and 3.7 support

v1.0.5

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Release Date: 2023-03-08

• Use __BYTE_ORDER__ instead of __BYTE_ORDER for portability. (#​513,
  #​514)
• Add Python 3.11 wheels (#​517)
• fallback: Fix packing multidimensional memoryview (#​527)

v1.0.4

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Release Date: 2022-06-03

• Support Python 3.11 (beta).
• Don't define __*_ENDIAN__ macro
  on Unix. by @​methane in
  #​495
• Use PyFloat_Pack8() on Python 3.11a7 by @​vstinner in
  #​499
• Fix Unpacker max_buffer_length handling by @​methane in
  #​506

v1.0.3

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Release Date: 2021-11-24 JST

• Fix Docstring (#​459)
• Fix error formatting (#​463)
• Improve error message about strict_map_key (#​485)

v1.0.2

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• Fix year 2038 problem regression in 1.0.1. (#​451)

v1.0.1

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• Add Python 3.9 and linux/arm64 wheels. (#​439)
• Fixed Unpacker.tell() after read_bytes() (#​426)
• Fixed unpacking datetime before epoch on Windows (#​433)
• Fixed fallback Packer didn't check DateTime.tzinfo (#​434)