Python 3.15.0 added to actions/python-versions
What happened
On 11 October 2026, Simon Willison reported that Python 3.15.0 has been added to actions/python-versions. This means "3.15" can be entered directly in a GitHub Actions test matrix to run tests against the new version. The author notes he had previously had ChatGPT check the repository every hour, waiting for stable 3.15 to land. The report does not mention the specific time the version was added, release notes or other details, and there are no contradictions in numbers, dates or claims with earlier reports.
Written by AI from the reports · updated 5 d ago
Timeline
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- Simon WillisonPython 3.15.0 added to actions/python-versions
Python 3.15.0 added to actions/python-versions Bit of a niche link, but I've been waiting for this for a couple of days - I even told ChatGPT to check for it: Clone https://github.com/actions/python-versions and git pull once an hour until they add the stable 3.15 - then tell me about it Now that this has landed, you can add "3.15" to a GitHub Actions testing matrix to run tests against the new Python 3.15.0 release .
Heat of this event
Current heat 3·Peak in the comparable range 9（Oct 11 10:00）·Change over 24 hours in the comparable range -49%
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