Mailman 3 NOTE: Python 3.9.3 contains an unintentional ABI incompatibility leading to crashes on 32-bit systems - Python-Dev

3 Apr 2021

      The memory layout of PyThreadState was unintentionally changed in the recent 3.9.3 bugfix release. This leads to crashes on 32-bit systems when importing binary extensions compiled for Python 3.9.0 - 3.9.2. This is a regression.

We will be releasing a hotfix 3.9.4 around 24 hours from now to address this issue and restore ABI compatibility with C extensions built for Python 3.9.0 - 3.9.2.

Details:
https://bugs.python.org/issue43710

- Ł

NOTE: Python 3.9.3 contains an unintentional ABI incompatibility leading to crashes on 32-bit systems

Łukasz Langa

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