Python 3.13.1 Released December 2025 _verified_ Access

Python 3.13.1 is the definitive release for the 3.13 lifecycle. While 3.13.0 was a proof-of-concept for the future of Python, 3.13.1 is the workhorse. If you are running microservices or data pipelines, the JIT improvements offer a "free" performance boost with minimal risk.

For those coming from earlier versions, Python 3.13 introduced: python 3.13.1 released december 2025