Releasing Python 3.15.0

Prologue #Like last year, I livetooted the release of Python 3.15.0. Here it is in blogpost form! Two weeks #Two weeks until Python 3.15.0 final! #Python #Python315 Fri, Sep 18, 2026, 00:30 EEST One week #One week until Python 3.15.0 final!! What are you most looking forward to? #Python #Python315 Tue, Sep 22, 2026, 21:17 EEST Python 3.15.0 release day! #First blocker, we’re getting 503s on docs.python.org and buildbot.python.org, the latter of which is needed to check the tier 1 and 2 buildbots are passing, needed for a release. It’s a certificate issue from an incompatible pyOpenSSL upgrade. We’re waiting for the US to wake up and poke it with a stick. #Python #Python315 Thu, Oct 1, 2026, 14:19 EEST Red #The US woke up and they’re both back up! Now, there’s one tier 1 failure to check. #Python #Python315 #release Thu, Oct 1, 2026, 14:22 EEST Flaky #RuntimeError: join took too long: <Process name='Process-2107' pid=2290504 parent=2276730 started daemon> Looks like a flaky test, and…