It’s the
first 3.14 release candidate!
https://www.python.org/downloads/release/python-3140rc1/
This is the first release candidate of Python
3.14
This release, 3.14.0rc1, is the penultimate release
preview. Entering the release candidate phase, only reviewed code
changes which are clear bug fixes are allowed between this release
candidate and the final release. The second candidate (and the last
planned release preview) is scheduled for Tuesday, 2025-08-26, while the
official release of 3.14.0 is scheduled for Tuesday, 2025-10-07.
There will be no ABI changes from this
point forward in the 3.14 series, and the goal is that there will be as
few code changes as possible.
Call to action
We strongly encourage maintainers of
third-party Python projects to prepare their projects for 3.14 during
this phase, and where necessary publish Python 3.14 wheels on PyPI to be
ready for the final release of 3.14.0, and to help other projects do
their own testing. Any binary wheels built against Python 3.14.0rc1
will work with future versions of Python 3.14.
As always, report any issues to the Python bug
tracker.
Please keep in mind that this is a preview release and while it’s as
close to the final release as we can get it, its use is
not recommended for production
environments.
Core
developers: time to work on documentation now
- Are all your changes properly documented?
- Are they mentioned in What’s
New?
- Did you notice other changes you know of to have insufficient
documentation?
Major
new features of the 3.14 series, compared to 3.13
Some of the major new features and changes in Python 3.14 are:
New features
(Hey, fellow core developer, if a feature you
find important is missing from this list, let Hugo know.)
For more details on the changes to Python 3.14, see What’s new in
Python 3.14. The next pre-release of Python 3.14 will be the final
release candidate, 3.14.0rc2, scheduled for 2025-08-26.
Build changes
-
PEP
761: Python 3.14 and onwards no longer provides PGP signatures for
release artifacts. Instead, Sigstore is recommended for verifiers.
- Official macOS and Windows release binaries include an experimental
JIT compiler.
Incompatible
changes, removals and new deprecations
Python install manager
The installer we offer for Windows is being replaced by our new
install manager, which can be installed from the Windows
Store or from its download
page. See our
documentation for more information. The JSON file available for
download below contains the list of all the installable packages
available as part of this release, including file URLs and hashes, but
is not required to install the latest release. The traditional installer
will remain available throughout the 3.14 and 3.15 releases.
More resources
And now for
something completely different
Today, 22nd July, is Pi Approximation Day, because 22/7 is a common
approximation of π and closer to π than 3.14.
22/7 is a Diophantine approximation, named after Diophantus of
Alexandria (3rd century CE), which is a way of estimating a real number
as a ratio of two integers. 22/7 has been known since antiquity;
Archimedes (3rd century BCE) wrote the first known proof that 22/7
overestimates π by comparing 96-sided polygons to the circle it
circumscribes.
Another approximation is 355/113. In Chinese mathematics, 22/7 and
355/113 are respectively known as Yuelü (约率; yuēlǜ; “approximate
ratio”) and Milü (密率; mìlǜ; “close ratio”).
Happy Pi Approximation
Day!
Enjoy the new release
Thanks to all of the many volunteers who help make Python Development
and these releases possible! Please consider supporting our efforts by
volunteering yourself or through organisation contributions to the Python Software
Foundation.
Regards from a Helsinki heatwave after an excellent EuroPython,
Your release team,
Hugo van Kemenade
Ned Deily
Steve Dower
Łukasz Langa