Python 3.13.1 Release Date December 2025 Page

Since this is a bugfix release, here’s exactly what you will – and will not – get:

Whether utilizing the early 3.13.1 build or the more mature iterations from December 2025, the 3.13 architecture implements significant improvements over previous generations. 1. Experimental Free-Threaded Binaries (GIL Removal) python 3.13.1 release date december 2025