---
title: Python 3.15.0 added to actions/python-versions
link: https://simonwillison.net/2026/Oct/10/python-actions/
source: simonwillison-net
published: 2026-10-10T23:58:04Z
updated: 2026-10-10T23:58:04Z
first_seen: 2026-10-11T02:08:53.023536769Z
labels:
- chatgpt
- github
- github-actions
- python
summary: '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. Tags: github, python, github-actions, chatgpt'
content: extracted
html: 2026-10-10-python-3-15-0-added-to-actions-python-versions.html
---

**[Python 3.15.0 added to actions/python-versions](https://github.com/actions/python-versions/commit/49858b91c92d27403416ee43117032e91d00ce24)**. Bit of a niche link, but I've been waiting for this for a couple of days - I even [told ChatGPT](https://chatgpt.com/share/6acad42a-2868-83e8-9a16-736f9def2b45) 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](https://www.python.org/downloads/release/python-3150/).

Posted [10th October 2026](https://simonwillison.net/2026/Oct/10/) at 11:58 pm

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This is a **link post** by Simon Willison, posted on [10th October 2026](https://simonwillison.net/2026/Oct/10/).

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