Python Release 2025 December News – Tested
By [Your Name] | December 15, 2025
The end of the year is always a busy time for the Python community. While the final months don't typically see a brand-new major version (like 3.14 or 3.15), December 2025 is packed with critical release candidate updates, security patches, and the finalization of features that will define Python in 2026. python release 2025 december news
The "Free-Threaded" future is here. In the 3.15 alpha, you can compile Python without the Global Interpreter Lock (GIL). For pure Python threaded workloads, early benchmarks show a 20-40% speedup on multi-core machines. 4. What Didn't Happen in December 2025 Rumors had been swirling about PEP 688 – Disabling the GIL by default , but that has been postponed to Python 3.16 (scheduled for October 2026). The December 2025 release notes confirm that the no-GIL build remains opt-in via a compile flag. By [Your Name] | December 15, 2025 The
That python3.8 script that runs your legacy ETL job? It stops working in 16 days. Upgrade now. In the 3