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hugovk merged 3 commits into from
Jun 17, 2025
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gh-123299: Add PEP 779 to What's New in Python 3.14 #135555

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Add PEP 779 to What's New in Python 3.14
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Add PEP 779 to What's New in Python 3.14
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hugovk committed Jun 16, 2025
commit ad7dfd9d2cb229765564d6131642d69ea3f4cd57
27 changes: 27 additions & 0 deletions Doc/whatsnew/3.14.rst
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Expand Up @@ -82,6 +82,7 @@ and improvements in user-friendliness and correctness.

.. PEP-sized items next.

* :ref:`PEP 779: Free-threaded Python is officially supported <whatsnew314-pep779>`
* :ref:`PEP 649 and 749: deferred evaluation of annotations <whatsnew314-pep649>`
* :ref:`PEP 734: Multiple interpreters in the stdlib <whatsnew314-pep734>`
* :ref:`PEP 741: Python configuration C API <whatsnew314-pep741>`
Expand Down Expand Up @@ -124,6 +125,32 @@ of Python. See :ref:`below <whatsnew314-refcount>` for details.
New features
============

.. _whatsnew314-pep779:

PEP 779: Free-threaded Python is officially supported
-----------------------------------------------------

The free-threaded build of Python is now supported and no longer experimental.
This is the start of phase II where free-threaded Python is officially supported
but still optional.

We are confident that the project is on the right path, and we appreciate the
continued dedication from everyone working to make free-threading ready for
broader adoption across the Python community.

With these recommendations and the acceptance of this PEP, we as the Python
developer community should broadly advertise that free-threading is a supported
Python build option now and into the future, and that it will not be removed
without a proper deprecation schedule.

Any decision to transition to phase III, with free-threading as the default or
sole build of Python is still undecided, and dependent on many factors both
within CPython itself and the community. This decision is for the future.

.. seealso::
:pep:`779` and its `acceptance
<https://discuss.python.org/t/pep-779-criteria-for-supported-status-for-free-threaded-python/84319/123>`__.

.. _whatsnew314-pep734:

PEP 734: Multiple interpreters in the stdlib
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