Post

🗞️ We're going to revert the incremental garbage collector in Python 3.14 and 3.15. See here for details: discuss.python.org/t/reverting-... #Python #Python314 #Python315

discuss.python.orgReverting the incremental GC in Python 3.14 and 3.15Python 3.14 shipped with a new incremental garbage collector. However, we’ve had a number of reports of significant memory pressure in production environments. We’ve decided to revert it in both…

16/4/26, 6:16 pm5 reposts17 likes

Hugo van Kemenade

@hugovk.dev

1 May

The reverts are done for 3.14 and 3.15 and initial test results look good, so we're ready for release. Plan: * 3.14.5rc1 on Saturday 2nd (new) * 3.15.0b1 on Tuesday 5th (already planned) * 3.14.5 final on Friday 8th (new) discuss.python.org/t/reverting-... #Python #Python314 #Python315

discuss.python.orgReverting the incremental GC in Python 3.14 and 3.15The reverts are done for 3.14 and 3.15, thanks to @sergey-miryanov and @nas for doing those, and initial test results are looking good, thanks to @zanie and @EWDurbin for helping with those. Release ...

Hugo van Kemenade

@hugovk.dev

4 May

Python 3.14.5 release candidate is out now! Please test! blog.python.org/2026/05/pyth... Next up, 3.15 beta 1 tomorrow. #Python #Python314 #Python315 #release

blog.python.orgPython 3.14.5 release candidate | Python InsiderA special release candidate with a new (old) garbage collector.

Hugo van Kemenade

@hugovk.dev

5 May

I'm postponing Python 3.15 beta 1 to Thursday to get the last few things in. We're close! discuss.python.org/t/python-3-1... #Python #Python315

discuss.python.orgPython 3.15.0 beta 1 is near!Today is the scheduled release date for Python 3.15.0 beta 1, but I’m going to postpone for a couple of days, until Thursday 2026-05-07 to give a bit more time to get the last few things in. I’ll pos...

Hugo van Kemenade

@hugovk.dev

6 May

Release week update! Also moving release 3/3 this week, 3.14.5 final, by a couple of days to give some more time for testing of the RC 🚀 discuss.python.org/t/python-3-1... ✅ 3.14.5rc1 on Monday 4nd ⬜ 3.15.0b1 on Thursday 7th ⬜ 3.14.5 final on Sunday 10th #Python #release #Python314 #Python315

discuss.python.orgPython 3.14.5 release candidateHey @hugovk, we are working on pushing this rc to Fedora Rawhide (development version), which is not yet updated to 3.15. That should give us some feedback, hopefully, but it will take a while before ...