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Yhg1s merged 1 commit into from
Mar 3, 2026
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Fix up markup and description in the 3.12.13-et-al post. #19

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9 changes: 4 additions & 5 deletions content/posts/python-31213-31115-31020/index.md
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title: 'Python 3.12.13, 3.11.15 and 3.10.20 are now available!'
publishDate: '2026-03-03'
author: Thomas Wouters
description: '[](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363)Python 3.12.13, 3.11.15 and 3.10.20 are now available!'
description: '[Python Releases For Your Security!](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363) New security releases for 3.10, 3.11 and 3.12 are now available.'
tags:
- releases
published: true
---

# [](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363)Python 3.12.13, 3.11.15 and 3.10.20 are now available!
# [Python Releases For Your Security!](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363)

New security releases for 3.10, 3.11 and 3.12 are now available. (As these Python versions are now in security-fix-only mode, these are source-only releases, and there is no pre-set release cadence.)

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# Python 3.11.15

Additional fixes in this release (they were already included in a previous 3.12 release):
Additional fixes in this release (they were already included in a previous 3.12 release):
* [gh-120298](https://github.com/python/cpython/issues/120298): Fixed a use-after-free in list rich comparison handling (`list_richcompare_impl`) for specially crafted concurrent inputs.
* [gh-120384](https://github.com/python/cpython/issues/120384): Fixed an out-of-bounds access in list slice assignment (`list_ass_subscript`) under specially crafted concurrent inputs.


https://www.python.org/downloads/release/python-31115/

# Python 3.10.20

Additional fixes in this release (they were already included in a previous 3.12 release):
Additional fixes in this release (they were already included in a previous 3.12 release):
* [gh-120298](https://github.com/python/cpython/issues/120298): Fixed a use-after-free in list rich comparison handling (`list_richcompare_impl`) for specially crafted concurrent inputs.
* [gh-120384](https://github.com/python/cpython/issues/120384): Fixed an out-of-bounds access in list slice assignment (`list_ass_subscript`) under specially crafted concurrent inputs.

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