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`.

.. release schedule: feature

Actual:

- 3.15 development begins: Wednesday, 2025-05-07
- 3.15.0 alpha 1: Tuesday, 2025-10-14
- 3.15.0 alpha 2: Wednesday, 2025-11-19
- 3.15.0 alpha 3: Tuesday, 2025-12-16
- 3.15.0 alpha 4: Tuesday, 2026-01-13
- 3.15.0 alpha 5: Wednesday, 2026-01-14
- 3.15.0 alpha 6: Wednesday, 2026-02-11
- 3.15.0 alpha 7: Tuesday, 2026-03-10
- 3.15.0 alpha 8: Tuesday, 2026-04-07
- 3.15.0 beta 1: Thursday, 2026-05-07
  (No new features beyond this point.)
- 3.15.0 beta 2: Tuesday, 2026-06-02
- 3.15.0 beta 3: Tuesday, 2026-06-23
- 3.15.0 beta 4: Saturday, 2026-07-18
- 3.15.0 candidate 1: Tuesday, 2026-08-04

Expected:

- 3.15.0 candidate 2: Tuesday, 2026-09-01
- 3.15.0 final: Thursday, 2026-10-01

.. release schedule: ends

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 3.17.0 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.
