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.
PEP 803: What abi3t Means for Python C Extension Authors
PEP 803 introduces abi3t — a stable ABI for free-threaded Python. What C extension authors must change and how to compile for both builds.
Free-Threaded Python 3.14: Migration Guide
Python 3.14 ships official free-threaded support. Learn how to install, benchmark, and migrate multithreaded code without the GIL — with real benchmarks.