Python 3.13.1 Released December 2025

As we close out 2025, the Python ecosystem continues to mature. While the headline-grabbing release of Python 3.14 occurred in October, the Python 3.13 branch remains the bedrock for many production environments. In December 2025, the community saw the release of (December 2) and Python 3.13.11 (December 5), continuing the commitment to stability and performance. What's Under the Hood?