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Vulnerability mitigated in python.org with follow-up third-party audit from Trail of Bits

The penultimate 3.15 beta is out!

A pair of bug fix releases await your upgrade.

The antepenultimate 3.15 beta is out!

A special release with a new (old) garbage collector.

The propreantepenultimate 3.15 beta is out!

A special release candidate with a new (old) garbage collector.

Rust for CPython project status update April 2026

A final alpha and two bug fixes are awaiting your upgrade.

A look at Python's JIT in 3.15a7.

The penultimate 3.15 alpha is out!

An analysis of the growth of CPython's codebase from its first commits to the present day

Python Releases For Your Security! New security releases for 3.10, 3.11 and 3.12 are now available.

Python Insider now lives at blog.python.org, backed by a Git repository. All 307 posts from the Blogger era have been migrated, and old URLs redirect automatically.

The Python Security Response Team now has an approved public governance document (PEP 811) and is welcoming new members.

This is an early developer preview of Python 3.15 www.python.org/downloads/release/python-3150a6/ Major new features of the 3.15 series, compared to 3.14 Pyt...

Python 3.14.3 is now available! This is third maintenance release of Python 3.14 Python 3.14.3 is the third maintenance release of 3.14, containing around ...

Note: 3.15.0a4 was accidentally built against from 2025-12-23 instead of 2026-01-13, so this 3.15.0a5 is an extra release correctly built against 2026-01-14...

Edit: This 3.15.0a4 was accidentally built against \ from 2025-12-23 instead of 2026-01-13, so 3.15.0a5 is an extra release correctly built against 2026-01-1...

This is an early developer preview of Python 3.15 www.python.org/downloads/release/python-3150a3/ Major new features of the 3.15 series, compared to 3.14 Pyt...