Release 25.2 (July)

[ichard26]

I'm happy to be the RM for this release it's likely to be quite small. A note about scheduling, I will be on vacation until the second week of July so I won't be able to do much reviewing until then. I don't think this will be a problem though since well... I doubt there will be much to include in the release.

[ichard26]

cc @pypa/pip-committers if anyone else feels particularly strongly about being the next RM.

[ichard26]

In terms of things I want to see land in pip 25.2, I'd like to include these PRs.

• Add --no-proxy Option #13051
• Guard against pathologically connected dependency graphs #13424
• Adjust path_to_url et al. to produce the same results on Python 3.14+ #13423 (and generally declare support for Python 3.14)
• Remove vendored typing-extensions #13336

In the (very) limited free time I have, I've been working on and off on #9081. I have a prototype that installs build dependencies in-process and it seems to be working well. I need to improve the output presenting and error handling story, but otherwise, I would like to add it as an experimental opt-in feature (via --use-feature) so it can be tested out in the wild earlier.¹

Footnotes

1. Realistically, there is no way we can switch to installing build time dependencies in-process without an opt-in then opt-out cycle because it touches a fundamental part of package installation. Changing it outright (even with an opt-out) would be too disruptive. ↩

[ichard26]

Ah, of course, another (more) impactful thing to include in this release would be a bump to our copy of resolvelib. Resolvelib 1.2 is slated to include sarugaku/resolvelib#188 which AFAICT will fix most of the resolution regressions from pip 25.1.

[notatallshaw]

Yes, I'm working on getting resolvelib 1.2 out (sarugaku/resolvelib#190 waiting on PyPI permissions). I'm available to work on issues and review PRs till the first half of July, but then I'm on vacation for the second half.

[potiuk]

I am happy to test some of the more complex things with Airflow when pip 25.2 , there are some interesting scenarios and complex resolutions that @notatallshaw helped us to workaround in Airflow for pip 25.1 and I am happy to remove the workarounds and test it once resolvelib 1.2 is used and there is a branch I can install pre-release pip 25.1 from.

I plan vacations in September / October so no issues with availability for me ;)

[ichard26]

FYI about scheduling, I will likely cut the 25.2 release during the last week of July. I'm not sure on what day exactly as my availability is still subject to change. I'll confirm when we're closer to the date. Until further notice, feel free to merge into main as you see fit.

[ichard26]

I'm going to schedule the 25.2 release for July 30th @ sometime after 3pm EST (7pm UTC). Starting on July 23 (next Wednesday), I ask that user-facing PRs are only merged with my approval. I don't plan on declaring a code freeze given the current slow pace of development.