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.
Python 3.15 frozendict: Immutable Built-in Dicts Explained
PEP 814 brings frozendict to Python 3.15 — built-in immutable, hashable dict. Usage, lru_cache patterns, and Migration from third-party packages.