Python 3.13.1 Release Nov 2025 [verified] -

The Python 3.13 series reached a significant milestone in late 2025 as the community settled into the broader ecosystem's adoption of its major features. While was originally released on December 3, 2024 , the series continued to evolve with subsequent bugfix releases throughout 2025.

: You can now create frozen dataclasses using the frozen parameter. python 3.13.1 release nov 2025

The experimental JIT and no-GIL mode are still evolving, but the core interpreter and standard library are now as solid as Python 3.12. The Python 3