Python 3.13 remains the focal point of the Python ecosystem in November 2025 as the community settles into the first full year of the "Free-threaded" era. While Python 3.14 is currently deep in its alpha development cycle, the practical news for developers this month centers on the maturing performance of 3.13 and the rapid stabilization of the experimental JIT compiler.
pip install pyupgrade pyupgrade --py313-plus your_project/
# Linux (deadsnakes PPA) sudo add-apt-repository ppa:deadsnakes/ppa sudo apt install python3.13 python3.13-full
