November 2025 New |work| — Cpython Release

Python 3.14, nicknamed "Pi" due to its version number, is now the stable standard. This release introduced several landmark features that developers are beginning to integrate this November:

A new compression.zstd module brings built-in support for the high-performance Zstandard compression algorithm. Python 3.15: The Alpha Phase Begins What's new in Python 3.14 — Python 3.14.4 documentation cpython release november 2025 new

November 2025 marks a pivotal moment for the CPython ecosystem, defined by the early-stage adoption of the newly released and the beginning of the Python 3.15 development cycle . Following the final release of Python 3.14 on October 7, 2025 , the community has transitioned into a month of intensive benchmarking, library updates, and tooling enhancements. The Arrival of Python 3.14 (Final) Python 3

The concurrent.interpreters module is now in the standard library, enabling isolated execution environments within a single process. This offers a new concurrency model that bypasses Global Interpreter Lock (GIL) contention without the overhead of separate processes. Following the final release of Python 3