This document describes the development and release schedule forPython 3.9. The schedule primarily concerns itself with PEP-sizeditems.
Note: the dates below use a 17-month development period that resultsin a 12-month release cadence between feature versions, as defined byPEP 602.
Actual:
Actual:
Provided irregularly on an “as-needed” basis until October 2025.
3.9 received bugfix updates approximately every 2 months forapproximately 18 months. Some time after the release of 3.10.0 final,the ninth and final 3.9 bugfix update was released. After that,security updates (source only) were releaseduntil October 31st 2025, that is 5 years after the release of 3.9 final.
As of 2025-10-31, 3.9 has reached theend-of-life phaseof its release cycle. 3.9.25 was the final security release.The codebase for 3.9 is now frozen and no further updates will beprovided nor issues of any kind will be accepted on the bug tracker.
Implemented PEPs for 3.9:
This document has been placed in the public domain.
Source:https://github.com/python/peps/blob/main/peps/pep-0596.rst
Last modified:2025-11-10 12:03:32 GMT