Python 3.15.0 release day (second attempt)!

✅ Release date updated in What's New in Python 3.15 https://github.com/python/cpython/pull/159053

✅ No release blockers https://github.com/python/cpython/labels/release-blocker

✅ No deferred blockers https://github.com/python/cpython/labels/deferred-blocker

✅ Buildbots all green https://buildbot.python.org/release-status/

#Python #Python315 #release