Lmst

Just released: Python 3.14.0 beta 3! 🚀🐍

🥧 All the good stuff of b2 but also:

🥧 Free-threaded Python is officially supported! (PEP 779)

🥧 Subinterpreters in the stdlib! (PEP 734)

Do you maintain a Python package? Please test 3.14.

If you find a bug now, we can fix it before October, which helps everyone. And you might find some places in your code to update as well, which helps you.

https://discuss.python.org/t/python-3-14-0-beta-3-is-here/95843?u=hugovk

#Python #CPython #Python314 #release #PEP779 #PEP734 #FreeThreaded #subinterpreters

@sirosen @ancoghlan @brianokken

Yes, let's test our projects with free-threaded in CI! Here's how to do it with GitHub Actions:

https://hugovk.dev/blog/2025/free-threaded-python-on-github-actions/

And see https://py-free-threading.github.io for more guides.

#PEP779 #Python #Python314
#FreeThreaded #CI #GitHub #GitHubActions

Exciting news!

PEP 779 ("Criteria for supported status for free-threaded Python") has been accepted, which means free-threaded Python is now a supported build!

We'll drop the "experimental" label already in 3.14 beta 3, due on Tuesday!

Details:
https://discuss.python.org/t/pep-779-criteria-for-supported-status-for-free-threaded-python/84319/123

#PEP779 #Python #Python314 #FreeThreaded

A special late acceptance for Python 3.14:

@ericsnowcurrently's PEP 734: Multiple Interpreters in the Stdlib 🚀

https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/36

#Python #PEP734 #subinterpreters #Python314

@nopatience @talkpython See also https://davepeck.org/2025/04/11/pythons-new-t-strings/ and https://t-strings.help!

#Python #programming #TStrings #Python314

Just released: Python 3.14.0 beta 2! 🚀🐍

🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!

Do you maintain a Python package? Please test 3.14. If you find a bug now, we can fix it before October, which helps everyone. And you might find some places in your code to update as well, which helps you.

https://discuss.python.org/t/python-3-14-0-beta-2-is-here/93396?u=hugovk

#Python #CPython #Python314 #release

Just released! 🚀

Enabled colour help for Python 3.14:

🎨 em-keyboard 5.2.0
🎨 linkotron 0.5.0
🎨 norwegianblue 0.22.0
🎨 pepotron 1.5.0
🎨 pypistats 1.10.0

Also added Python 3.15 to pepotron: `pep 3.15` opens PEP 790.

#release #python314 #colour #CLI #EmKeyboard #linkotron #norwegianblue #pepotron #pypistats #help

Colour output of `linkotron --help` and `em --help`.

Colour output of `pypistats python_minor --help`.

Just released: Python 3.14.0 beta 1! 🚀🐍

🥧 Deferred type annotation evaluation!
🥧 T-strings!
🥧 Zstandard!
🥧 Syntax highlighting in the REPL!
🥧 Colour in unittest, argparse, json and calendar CLIs!
🥧 UUID v6-8!
🥧 And much more!

https://discuss.python.org/t/python-3-14-0-beta-1-is-here/91117?u=hugovk

#Python #CPython #Python314 #release

#Python 3.14.0 beta 1 release day! `main` branch is locked!

It's also the feature freeze, meaning lots of stuff got merged yesterday so it can be released in 3.14 in October 2025 and not 3.15 in October 2026. But first, a couple of reverts for not-so-important things that weren't quite ready and last-minute fixes.

https://peps.python.org/pep-0745/

#Python #Python314 #PEP745 #beta #release

Less than one week to:

🥧 Python 3.14 beta! This marks the feature freeze, when we stop adding ~~bugs~~ features and begin a five-month stabilisation period, where we need you to start testing and reporting bugs.

https://peps.python.org/pep-0745/

🕒 Forget 3.14 (please don't, please test), Python 3.15 development begins! Check out the freshly published release PEP (where I make a commitment to release until 2031...):

https://peps.python.org/pep-0790/

#Python #Python314 #PEP745 #Python315 #PEP790 #PEPs #release

Here's a good intro to Python 3.14's t-strings by @davepeck, one of the authors of PEP 750 https://davepeck.org/2025/04/11/pythons-new-t-strings/
#Python #Python314 #PEP750 #tstrings

🚀 Oh, great! Python 3.14 is here to save us from the perilous clutches of f-strings with the magical invention of t-strings. Because, obviously, what we need is yet another way to format strings and confuse everyone even more. 🙄 Let's just hope nobody f-misuses these t-strings to launch SQL attacks straight from their keyboards. 💥
https://davepeck.org/2025/04/11/pythons-new-t-strings/ #Python314 #tstrings #stringformatting #codinghumor #cybersecurity #HackerNews #ngated

Just released: Python 3.14.0a7 🚀
Just released: Python 3.13.3 🚀🚀
Just released: Python 3.12.10 🚀🚀🚀
Just released: Python 3.11.12 🚀🚀🚀🚀
Just released: Python 3.10.17 🚀🚀🚀🚀🚀
Just released: Python 3.9.22 🚀🚀🚀🚀🚀🚀

Last 3.14 alpha! Less than a month to get new features in before beta!

Last 3.12 bugfix release! Now in security fix only!

And security releases of 3.9-3.11.

Please upgrade 3.9-3.13!

Please test 3.14!

https://discuss.python.org/t/python-3-14-0a7-3-13-3-3-12-10-3-11-12-3-10-17-and-3-9-22-are-now-available/87580

#Python #CPython #release #Python314 #Python313 #PythonEtc

Chart showing Python up to 3.8 are EOL, 3.9-3.12 are security only, 3.13 is bugfix, and 3.14 is the feature branch.

Especially for π day and #FediDonutFriday! Just released: Python 3.14.0a6 🚀 discuss.python.org/t/python-3-1... This release brought to you by a Karelian pie, a strawberry and gooseberry pie, and a slice of blueberry pie. #Python #CPython #Python314 #release #food #PiDay #PiiPäivä #pie

Especially for π day and #FediDonutFriday!

Just released: Python 3.14.0a6 🚀

https://discuss.python.org/t/python-3-14-0-alpha-6/84513

https://docs.python.org/3.14/whatsnew/3.14.html

This release brought to you by a Karelian pie (Karjalanpiirakka), a strawberry and gooseberry pie (mansikka-karviais piirakka) and a slice of blueberry pie (mustikkapiirakka).

#Python #CPython #Python314 #release #food #PiDay #PiiPäivä #pie #FediDonutFriday

@simon Here's a real-life application of the new tail-calling interpreter in 3.14.0a5, a full build of the CPython docs is 1.26 times faster, saving 7.5 seconds!

#Python #Python314 #uv #hyperfine #Sphinx

Output of hyperfine, one running "make -C Doc clean venv html" with Python 3.14.0a5, the other running 3.13.

The new one averaged 28.457 seconds across 10 runs, the old one 35.985 seconds.

Just released: Python 3.14.0a5 🚀 discuss.python.org/t/python-3-1... docs.python.org/3.14/whatsne... Also recently released! blurb 2.0.0 cherry-picker 3.5.0 pypistats 1.8.0 PrettyTable 3.13.0 & 3.14.0 tox-dev/action-pre-commit-uv 1.0.2 em-keyboard 5.0.0 #Python #CPython #Python314 #release

Python 3.14.0 alpha 5