• Wednesday, November 19, 2025 Python 3.15.0 alpha 2 This is an early developer preview of Python 3.15 https://www.python.org/downloads/release/python-3150a2/ Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. • This release, 3.15.0a2, is the second of seven 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’s 3.15.0a2, the second of seven planned alpha releases, was announced as an early developer preview. The release introduces several new features, including PEP 799’s high‑frequency statistical profiler, PEP 686’s default UTF‑8 encoding, and PEP 782’s PyBytesWriter C API, along with improved error messages. Alpha releases are meant for testing and may still receive feature changes until the beta phase on 5 May 2026 and the release‑candidate phase on 28 July 2026. The next pre‑release, 3.15.0a3, is scheduled for 16 Dec 2025. The preview is not recommended for production use. Documentation and bug reports are available on the Python website and GitHub.
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