python-peps/pep-0664.rst

PEP: 664
Title: Python 3.11 Release Schedule
Version: $Revision$
Last-Modified: $Date$
Author: Pablo Galindo Salgado <pablogsal@python.org>
Status: Active
Type: Informational
Content-Type: text/x-rst
Created: 12-Jul-2021
Python-Version: 3.11


Abstract
========

This document describes the development and release schedule for
Python 3.11.  The schedule primarily concerns itself with PEP-sized
items.

.. Small features may be added up to the first beta
   release.  Bugs may be fixed until the final release,
   which is planned for October 2022.

Release Manager and Crew
========================

- 3.11 Release Manager: Pablo Galindo Salgado
- Windows installers: Steve Dower
- Mac installers: Ned Deily
- Documentation: Julien Palard


Release Schedule
================

3.11.0 schedule
---------------

Note: the dates below use a 17-month development period that results
in a 12-month release cadence between major versions, as defined by
:pep:`602`.

Actual:

- 3.11 development begins: Monday, 2021-05-03
- 3.11.0 alpha 1: Monday, 2021-10-05
- 3.11.0 alpha 2: Tuesday, 2021-11-02
- 3.11.0 alpha 3: Wednesday, 2021-12-08
- 3.11.0 alpha 4: Monday, 2022-01-14
- 3.11.0 alpha 5: Thursday, 2022-02-03
- 3.11.0 alpha 6: Monday, 2022-03-07
- 3.11.0 alpha 7: Tuesday, 2022-04-05
- 3.11.0 beta 1: Sunday, 2022-05-08
  (No new features beyond this point.)
- 3.11.0 beta 2: Tuesday, 2022-05-31
- 3.11.0 beta 3: Wednesday, 2022-06-01
- 3.11.0 beta 4: Monday, 2022-07-11
- 3.11.0 beta 5: Tuesday, 2022-07-26
- 3.11.0 candidate 1: Monday, 2022-08-08
- 3.11.0 candidate 2: Monday, 2022-09-12

Expected:

- 3.11.0 final:  Monday, 2022-10-24

Subsequent bugfix releases every two months.


3.11 Lifespan
-------------

3.11 will receive bugfix updates approximately every 2 months for
approximately 18 months.  Some time after the release of 3.12.0 final,
the ninth and final 3.11 bugfix update will be released.  After that,
it is expected that security updates (source only) will be released
until 5 years after the release of 3.11.0 final, so until approximately
October 2027.


Features for 3.11
=================

Some of the notable features of Python 3.11 include:

* :pep:`654`, Exception Groups and ``except*``.
* :pep:`657`, Enhanced error locations in tracebacks.
* :pep:`680`, Support for parsing TOML in the standard library
* Python 3.11 is up to 10-60% faster than Python 3.10. On average, we measured
  a 1.25x speedup on the standard benchmark suite. See `Faster CPython
  <https://docs.python.org/3.11/whatsnew/3.11.html#faster-cpython>`__ for
  details.

Typing features:

* :pep:`646`, Variadic generics.
* :pep:`655`, Marking individual TypedDict items as required or potentially-missing.
* :pep:`673`, Self type.
* :pep:`675`, Arbitrary literal string type.
* :pep:`681`, Dataclass transforms

Copyright
=========

This document has been placed in the public domain.


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