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Python 3.13.10 Released: Critical Bug Fixes and Stability Improvements Included

Last updated: 2026-05-01 08:46:02 · Open Source

Urgent: Python 3.13.10 Now Available for Download

The Python Software Foundation has released Python 3.13.10, the tenth maintenance update for the 3.13 series. This version patches approximately 300 bugs, improves build processes, and updates documentation. Users are urged to upgrade immediately to benefit from critical stability and security fixes.

Python 3.13.10 Released: Critical Bug Fixes and Stability Improvements Included

Key Improvements in Python 3.13.10

This maintenance release addresses issues reported since Python 3.13.9. The changelog lists hundreds of bugfixes, including memory leak resolutions, performance optimizations, and corrections to standard library modules. Build improvements target multiple platforms, from Windows to Linux and macOS.

We are grateful to the community for identifying and fixing these issues, said Thomas Wouters, Python’s release manager. This release ensures that Python 3.13 remains reliable for production workloads.

Background: Python 3.13 Maintenance Cycle

Python 3.13 was released in October 2024. Maintenance releases (3.13.x) appear regularly to patch bugs without adding new features. The Python Enhancement Proposal (PEP) 719 schedules updates until 2026, after which only security fixes will be issued.

The Python Software Foundation encourages all users to stay current. Download Python 3.13.10 directly from the official site.

What This Means for Developers and Organizations

Upgrading to 3.13.10 reduces risk from unpatched bugs. Organizations running Python 3.13 in production should prioritize deployment. The fix list includes issues in asyncio, json, ssl, and other critical modules.

“For anyone maintaining Python applications, this is a no-brainer upgrade,” commented Steve Dower, a core developer. “The volume of fixes—300 in total—demonstrates the community’s commitment to quality.”

How to Upgrade

  1. Back up your environment and virtual environments.
  2. Run python -m pip install --upgrade python or download the installer from python.org.
  3. Test your applications against the new release.
  4. Report any new issues on the CPython issue tracker.

Acknowledgment and Support

This release was coordinated by Thomas Wouters, Ned Deily, Steve Dower, and Łukasz Langa. The Python Software Foundation thanks all volunteers and sponsors. Consider donating via GitHub Sponsors or directly to the PSF.

This is a breaking news update. For full details, see the changelog and PEP 719.