Upgrade to Python 3.15: What Breaks and How to Fix It
Originally published on CoreMesh. Upgrading to Python 3.15 is mostly painless, with one exception....
Oct 17, 202611 min read0 reactions0 comments
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Oct 10, 2026Python 3.15 Made UTF-8 the Default. We Ran 13 Cases in Seven Linux Locales to See What Changes
Python 3.15.0 came out on October 9. The headline change for anyone who runs Python on servers is PEP...
Oct 10, 202614 min read6 reactions7 comments
Python 3.15 released with experimental feature up to 12% faster in tests
Python 3.15 adds explicit lazy imports, a built-in frozendict type and UTF-8 as the default text encoding. Its experimental JIT showed platform-specific ga
Oct 10, 20262 min read0 reactions1 comments
Python 3.15: Lazy Imports, frozendict & UTF-8 by Default
Python 3.15 is out: lazy imports, built-in frozendict, UTF-8 by default and a faster JIT. What the new features do, the gotchas, and whether to upgrade.
Oct 14, 20266 min read1 reactions0 comments
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Sep 8, 2026What's new in Python 3.15
Originally published at https://tekmag.thsite.top/whats-new-in-python-3-15/ Python 3.15.0 lands on...
Sep 8, 202613 min read0 reactions0 comments
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Sep 7, 2026Python 3.15 Lands 1 October — Migration Checklist Before Upgrade
Python 3.15.0 final ships 1 October 2026. UTF-8 default encoding, lazy imports, re.prefixmatch, GC reverted to generational. The 9-step checklist we ran on RC2.
Sep 7, 20267 min read0 reactions0 comments