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Welcome to the Python Insider

Python 3.15.0 alpha 5 (yes, another alpha!)

Jan. 14, 2026, 5:38 p.m.

Note: 3.15.0a4 was accidentally built against main from 2025-12-23 instead of 2026-01-13, so this 3.15.0a5 is an extra release correctly built against 2026-01-14. This is an early developer preview of Python 3.15 www.python.org/downloads/release/python-3150a5/ Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. This … Read more

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