, proposing that by version 3.15, build configurations might issue warnings if a Rust compiler is not available. Python.org Notable Features of Python 3.14 (Released October 2025)
The November release specifically patches a slowdown discovered in io module buffering and optimizes the asyncio event loop to use io_uring on Linux kernels 6.0+.
67% of top 1000 packages have published wheels for Python 3.14—up from 41% in October.