• Wednesday, February 11, 2026 Python 3.15.0 alpha 6 This is an early developer preview of Python 3.15 www.python.org/downloads/release/python-3150a6/ Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. • This release, 3.15.0a6, is the sixth of eight planned alpha releases. • Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. • During the alpha phase, features may be added up until the start of the beta phase (2026-05-05) and, if necessary, may be modified or deleted up until the release candidate phase (2026-07-28). • Please keep in mind that this is a preview release and its use isnotrecommended for production environments. • Many new features for Python 3.15 are still being planned and written.
Article Summaries:
- Python 3.15.0 α6, released on 2026‑02‑23, is the sixth of eight planned alpha releases for the upcoming 3.15 series. It introduces several new features, including PEP 799’s high‑frequency statistical profiler, PEP 798’s unpacking in comprehensions, PEP 686’s default UTF‑8 encoding, PEP 782’s PyBytesWriter C API, and PEP 728’s TypedDict with typed extra items. The JIT compiler has been upgraded, delivering 3‑4 % speed gains on x86‑64 Linux and 7‑8 % on AArch64 macOS. Additional improvements include better error messages. The alpha phase will continue until the beta release on 2026‑05‑05, with the next pre‑release (α7) scheduled for 2026‑03‑10. This preview is not intended for production use.
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