Sourced from pyo3's releases.

PyO3 0.25.1

This release adds testing for arm64 Windows, and fixes a bug with Python 3.14 support on 32-bit systems.

This release also adds a chrono-local feature to enable support for chrono::Local timezone (this was previously available in PyO3 0.24 but would convert the local timezone to a fixed offset, which did not round-trip well).

There are a few other fixes, mostly correcting FFI definitions and improving compiler errors when writing async code without the experimental-async feature enabled.

Thank you to the following contributors for the improvements:

@​bschoenmaeckers @​Cheukting @​davidhewitt @​decathorpe @​dependabot[bot] @​Icxolu @​jessekrubin @​musicinmybrain @​ngoldbaum @​timfel @​tonybaloney @​Tpt @​yogevm15

Sourced from pyo3's changelog.

[0.25.1] - 2025-06-12

Packaging

• Add support for Windows on ARM64. #5145
• Add chrono-local feature for optional conversions for chrono's Local timezone & DateTime<Local> instances. #5174

Added

• Add FFI definition PyBytes_AS_STRING. #5121
• Add support for module associated consts introspection. #5150

Changed

• Enable "vectorcall" FFI definitions on GraalPy. #5121
• Use Py_Is function on GraalPy #5121

Fixed

• Report a better compile error for async declarations when not using experimental-async feature. #5156
• Fix implementation of FromPyObject for uuid::Uuid on big-endian architectures. #5161
• Fix segmentation faults on 32-bit x86 with Python 3.14. #5180

• 2aacae6 release: 0.25.1
• a4c35ce Make PyObjectObRefcnt.refcnt_and_flags 64-bit-only (#5180)
• 0ba8f31 docs: add Kyle Barron libraries/packages to README.md (#5172)
• eb3fac9 fix: typos in guide/docs (#5182)
• 7601c0c ci: fixes 2025-06-06 (#5186)
• 2829027 Add conversions for chrono's Local timezone (#5174)
• 5db4871 Remove unnecessary warning filter in pytests (#5165)
• 008efe2 conversions: fix FromPyObject impl for uuid::Uuid for big-endian (#5161)
• a27ccd7 Updates to better support ormsgpack on GraalPy. (#5121)
• 2c13c1c Catching Invalid Asyncs (#5156)
• Additional commits viewable in compare view

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