PEP 803: Making Free-Threaded Python Production-Ready
PEP 803 stabilizes the free-threaded ABI for Python 3.13+, eliminating the C-extension fragmentation that blocked GIL-free Python from production.
Python 3.14.5 Reverts the Generational Garbage Collector
Python 3.14.5 shipped May 10, 2026 with a critical garbage collector reversion back to the generational collector. Here’s why the incremental approach failed in production, what security fixes matter, and how to upgrade safely.