The official blog of the Python core development team.https://blog.python.org/https://blog.python.org/2026/10/python-3151-3149-31317/https://blog.python.org/2026/10/python-3151-3149-31317/Three certified security releases for 3.15, 3.14 and 3.13.Wed, 21 Oct 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/10/python-3160-alpha-1-is-now-available/https://blog.python.org/2026/10/python-3160-alpha-1-is-now-available/The first developer preview of Python 3.16 is ready for testing.Tue, 13 Oct 2026 00:00:00 GMTSavannah Ostrowskireleaseshttps://blog.python.org/2026/10/python-3150-final-is-here/https://blog.python.org/2026/10/python-3150-final-is-here/A brand new Python here for you to enjoy!Fri, 09 Oct 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/10/python-3150-rc3/https://blog.python.org/2026/10/python-3150-rc3/Following tradition, a surprise rc3!Fri, 02 Oct 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/10/python-31022-31117/https://blog.python.org/2026/10/python-31022-31117/Security updates across Python 3.10–3.14, the final maintenance release of 3.13, and a farewell to Python 3.10.Thu, 01 Oct 2026 00:00:00 GMTPablo Galindoreleaseshttps://blog.python.org/2026/09/language-summit-2026/https://blog.python.org/2026/09/language-summit-2026/The 2026 Python Language Summit was hosted in Kraków, Poland as part of EuroPython 2026. There were 15 talks covering free-threading, Rust, garbage collection, type annotations, and more.Wed, 30 Sep 2026 12:00:11 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-lightning-talks/https://blog.python.org/2026/09/language-summit-2026-lightning-talks/Lightning talks on a one-time ABI break, safer interruptions, EktuPy (Scratch but Python), an AGENTS.md file for CPython, and a call to read PEP 836.Wed, 30 Sep 2026 12:00:10 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-pep-827-type-manipulation/https://blog.python.org/2026/09/language-summit-2026-pep-827-type-manipulation/Michael J. Sullivan presents PEP 827 and discusses a key design decision: how to store type annotations?Wed, 30 Sep 2026 12:00:09 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-free-threading-post-era/https://blog.python.org/2026/09/language-summit-2026-free-threading-post-era/Tobias Wrigstad, Fridtjof Stoldt, and Donghee Na propose a safe and performant, high-level concurrency model for free-threaded PythonWed, 30 Sep 2026 12:00:08 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-developer-in-residence-update-and-future/https://blog.python.org/2026/09/language-summit-2026-developer-in-residence-update-and-future/Petr Viktorin gives an update on the Developer-in-Residence role and asks Python core developers for projects to prioritizeWed, 30 Sep 2026 12:00:07 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-spicycrab/https://blog.python.org/2026/09/language-summit-2026-spicycrab/Kushal Das shows off Spicycrab, a Python-to-Rust transpiler for Python users who need performance without learning Rust or leaving PythonWed, 30 Sep 2026 12:00:06 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-rust-for-cpython/https://blog.python.org/2026/09/language-summit-2026-rust-for-cpython/David Hewitt shares a status update, first module, and potential acceptance criteria for the Rust for CPython projectWed, 30 Sep 2026 12:00:05 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-memory-snapshots/https://blog.python.org/2026/09/language-summit-2026-memory-snapshots/Hood Chatham proposes memory snapshots and an initialization phase for speedier Python startupsWed, 30 Sep 2026 12:00:04 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-memory-buffer-protocol/https://blog.python.org/2026/09/language-summit-2026-memory-buffer-protocol/Nathan Goldbaum proposes safe concurrent access through buffer leases and custom data types for the Python Buffer Protocol.Wed, 30 Sep 2026 12:00:03 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-garbage-collection-generational-incremental-both/https://blog.python.org/2026/09/language-summit-2026-garbage-collection-generational-incremental-both/Mark Shannon proposes a future garbage collection strategy for Python following the revert of the incremental garbage collector in Python 3.14Wed, 30 Sep 2026 12:00:02 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-macos-python/https://blog.python.org/2026/09/language-summit-2026-macos-python/Ned Deily weighs whether Python should continue shipping macOS installersWed, 30 Sep 2026 12:00:01 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/language-summit-2026-namespaces/https://blog.python.org/2026/09/language-summit-2026-namespaces/Pablo Galindo Salgado proposes a top-level `std` namespace for the Python standard library to prevent module shadowing and free up module names.Wed, 30 Sep 2026 12:00:00 GMTSeth Larsonlanguage-summitlanguage-summit-2026https://blog.python.org/2026/09/python-docs-in-german/https://blog.python.org/2026/09/python-docs-in-german/You can now read the Python documentation online in German!Sat, 26 Sep 2026 00:00:00 GMTStan Ulbrychdocshttps://blog.python.org/2026/09/the-python-documentation-is-now-available-in-persian/https://blog.python.org/2026/09/the-python-documentation-is-now-available-in-persian/Wed, 23 Sep 2026 00:00:00 GMTStan Ulbrychdocshttps://blog.python.org/2026/09/python-3150-rc2/https://blog.python.org/2026/09/python-3150-rc2/Last chance to test before the big day!Tue, 01 Sep 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/08/riscv-now-officially-supported/https://blog.python.org/2026/08/riscv-now-officially-supported/I’m happy to announce that RISC-V platforms are now officially supported by CPython. 🎉 🚀 Mon, 24 Aug 2026 00:00:00 GMTStan Ulbrychhttps://blog.python.org/2026/08/the-python-documentation-is-now-available-in-russian/https://blog.python.org/2026/08/the-python-documentation-is-now-available-in-russian/Sat, 22 Aug 2026 00:00:00 GMTStan Ulbrychdocshttps://blog.python.org/2026/08/2026-packaging-council-nominees/https://blog.python.org/2026/08/2026-packaging-council-nominees/Announcing the 17 nominees for the inaugural Python Packaging Council election, and how to vote in the election.Thu, 13 Aug 2026 00:00:00 GMTPradyun Gedamhttps://blog.python.org/2026/08/python-31214-31116-31021/https://blog.python.org/2026/08/python-31214-31116-31021/[Python Releases Eclipse Your Security!](https://discuss.python.org/t/python-3-12-14-3-11-16-and-3-10-21-are-now-available/108537) New security releases for 3.10, 3.11 and 3.12 are now available.Wed, 12 Aug 2026 00:00:00 GMTThomas Woutersreleaseshttps://blog.python.org/2026/08/python-3147-31315/https://blog.python.org/2026/08/python-3147-31315/A pair of bug fix releases await your upgrade.Wed, 05 Aug 2026 00:00:00 GMTThomas Woutersreleaseshttps://blog.python.org/2026/08/python-3150-rc1/https://blog.python.org/2026/08/python-3150-rc1/Get those wheels rolling!Tue, 04 Aug 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/07/2026-packaging-council-nominations/https://blog.python.org/2026/07/2026-packaging-council-nominations/The inaugural Python Packaging Council election nomination period opens on Tuesday, July 28th, 2:00 pm UTC and closes on Tuesday, August 11th, 2:00 pm UTC.Thu, 23 Jul 2026 00:00:00 GMTPradyun Gedamhttps://blog.python.org/2026/07/python-3150-beta-4/https://blog.python.org/2026/07/python-3150-beta-4/The final 3.15 beta is out!Sat, 18 Jul 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/06/2026-packaging-council-election-dates/https://blog.python.org/2026/06/2026-packaging-council-election-dates/A new Python Packaging Council (PPC) is being established, with their election of the inaugural PPC will be held in parallel to the 2026 PSF Board election.Sun, 28 Jun 2026 00:00:00 GMTPradyun Gedamhttps://blog.python.org/2026/06/mitigated-api-bypass-for-download-metadata-python-dot-org/https://blog.python.org/2026/06/mitigated-api-bypass-for-download-metadata-python-dot-org/Vulnerability mitigated in python.org with follow-up third-party audit from Trail of BitsTue, 23 Jun 2026 00:00:00 GMTSeth Larsonsecurityhttps://blog.python.org/2026/06/python-3150-beta-3/https://blog.python.org/2026/06/python-3150-beta-3/The penultimate 3.15 beta is out!Tue, 23 Jun 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/06/python-3146-31314/https://blog.python.org/2026/06/python-3146-31314/A pair of bug fix releases await your upgrade.Wed, 10 Jun 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/06/python-3150-beta-2/https://blog.python.org/2026/06/python-3150-beta-2/The antepenultimate 3.15 beta is out!Tue, 02 Jun 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/05/python-3145-is-out/https://blog.python.org/2026/05/python-3145-is-out/A special release with a new (old) garbage collector.Sun, 10 May 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/05/python-3150-beta-1/https://blog.python.org/2026/05/python-3150-beta-1/The propreantepenultimate 3.15 beta is out!Thu, 07 May 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/05/python-3145rc1/https://blog.python.org/2026/05/python-3145rc1/A special release candidate with a new (old) garbage collector.Mon, 04 May 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/04/rust-for-cpython-2026-04/https://blog.python.org/2026/04/rust-for-cpython-2026-04/Rust for CPython project status update April 2026Wed, 08 Apr 2026 00:00:00 GMTEmma SmithRusthttps://blog.python.org/2026/04/python-3150a8-3144-31313/https://blog.python.org/2026/04/python-3150a8-3144-31313/A final alpha and two bug fixes are awaiting your upgrade.Tue, 07 Apr 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/03/jit-on-track/https://blog.python.org/2026/03/jit-on-track/A look at Python's JIT in 3.15a7.Mon, 23 Mar 2026 00:00:00 GMTKen JinJITperformancehttps://blog.python.org/2026/03/python-3150-alpha-7/https://blog.python.org/2026/03/python-3150-alpha-7/The penultimate 3.15 alpha is out!Tue, 10 Mar 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/03/cpython-codebase-growth/https://blog.python.org/2026/03/cpython-codebase-growth/An analysis of the growth of CPython's codebase from its first commits to the present daySun, 08 Mar 2026 00:00:00 GMTStan Ulbrychhistoryhttps://blog.python.org/2026/03/python-31213-31115-31020/https://blog.python.org/2026/03/python-31213-31115-31020/[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.Tue, 03 Mar 2026 00:00:00 GMTThomas Woutersreleaseshttps://blog.python.org/2026/03/the-python-insider-blog-has-moved/https://blog.python.org/2026/03/the-python-insider-blog-has-moved/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.Tue, 03 Mar 2026 00:00:00 GMTJacob Coffeepythoncommunityhttps://blog.python.org/2026/02/join-the-python-security-response-team/https://blog.python.org/2026/02/join-the-python-security-response-team/The Python Security Response Team now has an approved public governance document (PEP 811) and is welcoming new members.Tue, 17 Feb 2026 00:00:00 GMTSeth Larsonsecuritypsrthttps://blog.python.org/2026/02/python-3150-alpha-6/https://blog.python.org/2026/02/python-3150-alpha-6/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...Wed, 11 Feb 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/02/python-3143-and-31312-are-now-available/https://blog.python.org/2026/02/python-3143-and-31312-are-now-available/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 ...Tue, 03 Feb 2026 00:00:00 GMTThomas Woutersreleaseshttps://blog.python.org/2026/01/python-3150-alpha-5-yes-another-alpha/https://blog.python.org/2026/01/python-3150-alpha-5-yes-another-alpha/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...Wed, 14 Jan 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2026/01/python-3150-alpha-4/https://blog.python.org/2026/01/python-3150-alpha-4/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...Tue, 13 Jan 2026 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2025/12/python-3150-alpha-3/https://blog.python.org/2025/12/python-3150-alpha-3/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...Tue, 16 Dec 2025 00:00:00 GMTHugo van Kemenadereleaseshttps://blog.python.org/2025/12/python-3142-and-31311-are-now-available/https://blog.python.org/2025/12/python-3142-and-31311-are-now-available/Two more, just three days after the last? Yes! We found some regressions, so here’s an expedited pair of releases. They also come with some bonus security fi...Fri, 05 Dec 2025 00:00:00 GMTHugo van Kemenadereleases