Simon Willison’s Weblog
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 release.
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This is a link post by Simon Willison, posted on 10th October 2026 .
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