PEP 790: Python 3.15 release schedule (#4388)

Author: hugovk

.github/CODEOWNERS

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peps/pep-0790.rst

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+PEP: 790
+Title: Python 3.15 Release Schedule
+Author: Hugo van Kemenade
+Status: Active
+Type: Informational
+Topic: Release
+Created: 26-Apr-2025
+Python-Version: 3.15
+
+
+Abstract
+========
+
+This document describes the development and release schedule for Python 3.15.
+
+Release manager and crew
+========================
+
+- 3.15 release manager: Hugo van Kemenade
+- Windows installers: Steve Dower
+- Mac installers: Ned Deily
+- Documentation: Julien Palard
+
+
+Release schedule
+================
+
+3.15.0 schedule
+---------------
+
+The dates below use a 17-month development period that results in a 12-month
+release cadence between feature versions, as defined by :pep:`602`.
+
+Expected:
+
+- 3.15 development begins: Tuesday, 2025-05-06
+- 3.15.0 alpha 1: Tuesday, 2025-10-14
+- 3.15.0 alpha 2: Tuesday, 2025-11-18
+- 3.15.0 alpha 3: Tuesday, 2025-12-16
+- 3.15.0 alpha 4: Tuesday, 2026-01-13
+- 3.15.0 alpha 5: Tuesday, 2026-02-10
+- 3.15.0 alpha 6: Tuesday, 2026-03-10
+- 3.15.0 alpha 7: Tuesday, 2026-04-07
+- 3.15.0 beta 1: Tuesday, 2026-05-05
+  (No new features beyond this point.)
+- 3.15.0 beta 2: Tuesday, 2026-05-26
+- 3.15.0 beta 3: Tuesday, 2026-06-16
+- 3.15.0 beta 4: Tuesday, 2026-07-14
+- 3.15.0 candidate 1: Tuesday, 2026-07-28
+- 3.15.0 candidate 2: Tuesday, 2026-09-01
+- 3.15.0 final: Thursday, 2026-10-01
+
+Subsequent bugfix releases every two months.
+
+
+3.15 lifespan
+-------------
+
+* Python 3.15 will receive bugfix updates approximately every second month for
+  two years.
+* Around the time of the release of 3.18.0 final, the final 3.15 bugfix update
+  will be released.
+* After that, it is expected that security updates (source only) will be
+  released for the next three years, until five years after the release of
+  3.15.0 final, so until approximately October 2031.
+
+
+Copyright
+=========
+
+This document is placed in the public domain or under the
+CC0-1.0-Universal license, whichever is more permissive.