Python 3.13 Latest Release 2025 Jun 2026

The random module has been updated to use a modern algorithm (Lecuyer's PCG64 DXSM). This provides better statistical properties and is faster than the legacy MT19937 algorithm used for decades.

Building on the from 3.11, ABS adds type‑profile guided bytecode rewriting at runtime. Key outcomes: python 3.13 latest release 2025