As a final preparation for the #PyO3 workshop tomorrow at #EuroPython, I have updated some exercises to ensure thread-safety. We are ready for #FreeThreaded #Python! Make sure you have the setup ready: https://github.com/Cheukting/py03_101
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Just released: Python 3.14.0 beta 3! 
All the good stuff of b2 but also:
Free-threaded Python is officially supported! (PEP 779)
Subinterpreters in the stdlib! (PEP 734)
Do you maintain a Python package? Please test 3.14.
If you find a bug now, we can fix it before October, which helps everyone. And you might find some places in your code to update as well, which helps you.
https://discuss.python.org/t/python-3-14-0-beta-3-is-here/95843?u=hugovk
Discussions on Python.org · Python 3.14.0 beta 3 is here!It’s 3.14 beta 3! https://www.python.org/downloads/release/python-3140b3/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b3, is the third of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We strongly encourage maintainers of third-party Python projects to test with 3.14 during the beta...
GitHub Actions now supports free-threaded Python!
I wrote up how to add it your workflows so you can start testing free-threaded Python 3.13 and 3.14 with either actions/setup-python or actions/setup-uv.
https://hugovk.dev/blog/2025/free-threaded-python-on-github-actions/
Hugo van Kemenade · Free-threaded Python on GitHub Actions
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