Python 3.12.0 beta 1 released

I'm pleased to announce the release of Python 3.12 beta 1 (and feature freeze for Python 3.12).

https://www.python.org/downloads/release/python-3120b1/

This is a beta preview of Python 3.12

Python 3.12 is still in development. This release, 3.12.0b1, is the first of four planned beta release previews of 3.12.

Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release.

We strongly encourage maintainers of third-party Python projects to test with 3.12 during the beta phase and report issues found to [the Python bug tracker (Issues · python/cpython · GitHub) as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (Monday, 2023-07-31). Our goal is to have no ABI changes after beta 4 and as few code changes as possible after 3.12.0rc1, the first release candidate. To achieve that, it will be extremely important to get as much exposure for 3.12 as possible during the beta phase.

Please keep in mind that this is a preview release and its use is not recommended for production environments.

Major new features of the 3.12 series, compared to 3.11

Some of the new major new features and changes in Python 3.12 are:

• New type annotation syntax for generic classes (PEP 695).
• More flexible f-string parsing, allowing many things previously disallowed (PEP 701).
• Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user.
• Many large and small performance improvements (like PEP 709).
• Support for the Linux perf profiler to report Python function names in traces.
• The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623.
• In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2).
• The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632. The setuptools package (installed by default in virtualenvs and many other places) continues to provide the distutils module.
• A number of other old, broken and deprecated functions, classes and methods have been removed.
• Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.)
• The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.)
• (Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

For more details on the changes to Python 3.12, see What’s new in Python 3.12. The next pre-release of Python 3.12 will be 3.12.0b2, currently scheduled for 2023-05-29.

More resources

Online Documentation.

PEP 693, the Python 3.12 Release Schedule.

Report bugs via GitHub Issues.

Help fund Python and its community.

And now for something completely different

As the first beta release marks the point at which we fork off the release branch from the main development branch, here’s a poem about forks in the road.

Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;

Then took the other, as just as fair,
And having perhaps the better claim,
Because it was grassy and wanted wear;
Though as for that the passing there
Had worn them really about the same,

And both that morning equally lay
In leaves, no step had trodden black.
Oh, I kept the first for another day!
Yet knowing how way leads on to way,
I doubted if I should ever come back.

I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I —
I took the one less traveled by,
And that has made all the difference.

The Road Not Taken, by Robert Frost.

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 organization contributions to the Python Software Foundation.

Your release team,

Thomas Wouters

Ned Deily

Steve Dower

Python 3.11.3, Python 3.10.11 and 3.12.0 alpha 7 are available

It's time for another set of Python releases! Python 3.11.3, 3.10.11 and 3.12 alpha 7 are now available.

Python 3.12.0 alpha 7

The final alpha release of Python 3.12! The next release will be beta 1, which is also the feature freeze. Last chance to get your new features and API changes into 3.12!

https://www.python.org/downloads/release/python-3120a7/

246 new commits since 3.12.0a6.

Python 3.11.3

More bugfixes and security fixes for the best Python version (so far).

https://www.python.org/downloads/release/python-3113/

167 new commits since 3.11.2

Python 3.10.11

The final regular bugfix release for Python 3.10! It is now entering security-fix-only mode. This also means this is the last version for which we will ship Windows and macOS installers. If you rely on these binary releases, it's time to upgrade to Python 3.11.

https://www.python.org/downloads/release/python-31011/

121 new commits since 3.10.10.

We hope you enjoy the new releases!

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/

From the release team,

Thomas Wouters
Pablo Galindo Salgado
Łukasz Langa
Ned Deily
Steve Dower

 

Python 3.12.0 alpha 6 released

I'm pleased to announce the release of Python 3.12 alpha 6.

https://www.python.org/downloads/release/python-3120a6/

This is an early developer preview of Python 3.12.

Major new features of the 3.12 series, compared to 3.11

Python 3.12 is still in development. This release, 3.12.0a6 is the sixth of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the beta phase (2023-05-08) and, if necessary, may be modified or deleted up until the release candidate phase (2023-07-31). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.12 are still being planned and written. Among the new major new features and changes so far:

• Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user.
• Support for the Linux perf profiler to report Python function names in traces.
• The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623.
• In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2).
• The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632). The setuptools package (installed by default in virtualenvs and many other places) continues to provide the distutils module.
• A number of other old, broken and deprecated functions, classes and methods have been removed.
• Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.)
• The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.)
• (Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

For more details on the changes in Python 3.12, see What's New In Python 3.12. The next pre-release of Python 3.12 will be 3.12.0a7, currently scheduled for 2023-04-03.

More resources

• Online Documentation
• PEP 693, the 3.12 Release Schedule
• Report bugs at https://github.com/python/cpython/issues.
• Help fund Python and its community.

And now for something completely different

Let me not to the marriage of true minds

Admit impediments. Love is not love

Which alters when it alteration finds,

Or bends with the remover to remove:

O, no! it is an ever-fixed mark,

That looks on tempests and is never shaken;

It is the star to every wandering bark,

Whose worth’s unknown, although his height be taken.

Love’s not Time’s fool, though rosy lips and cheeks

Within his bending sickle’s compass come;

Love alters not with his brief hours and weeks,

But bears it out even to the edge of doom.

If this be error, and upon me prov’d,

I never writ, nor no man ever lov’d.

Sonnet 116, by William Shakespeare.

Enjoy the new releases

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/

Your release team,

Thomas Wouters

Ned Deily

Steve Dower

 

Python 3.11.2, Python 3.10.10 and 3.12.0 alpha 5 are available

Hi everyone,

I am happy to report that after solving some last-time problems we have a bunch of fresh releases for you!

Python 3.12.0 alpha 5

Check the new alpha of 3.12 with some Star Trek vibes:

https://www.python.org/downloads/release/python-3120a5/

210 new commits since 3.12.0a4 last month

Python 3.11.2

A shipment of bugfixes and security releases for the newest Python!

https://www.python.org/downloads/release/python-3112/

194 new commits since 3.11.1

Python 3.10.10

Your trusty Python3.10 just got more stable and secure!

https://www.python.org/downloads/release/python-31010/

131 new commits since 3.10.9

We hope you enjoy the new releases!

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/ 

Your friendly release team,

Ned Deily @nad
Steve Dower @steve.dower
Pablo Galindo Salgado @pablogsal
Łukasz Langa @ambv
Thomas Wouters @thomas

Python 3.12.0 alpha 4 released

I'm pleased to announce the release of Python 3.12 alpha 4.

https://www.python.org/downloads/release/python-3120a4/

This is an early developer preview of Python 3.12.

Major new features of the 3.12 series, compared to 3.11

Python 3.12 is still in development. This release, 3.12.0a4 is the fourth of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the beta phase (2023-05-08) and, if necessary, may be modified or deleted up until the release candidate phase (2023-07-31). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.12 are still being planned and written. Among the new major new features and changes so far:

• Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user.
• Support for the Linux perf profiler to report Python function names in traces.
• The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623.
• In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2).
• The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632). The setuptools package (installed by default in virtualenvs and many other places) continues to provide the distutils module.
• A number of other old, broken and deprecated functions, classes and methods have been removed.
• (Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

For more details on the changes in Python 3.12, see What's New In Python 3.12. The next pre-release of Python 3.12 will be 3.12.0a4, currently scheduled for 2023-02-06.

More resources

• Online Documentation
• PEP 693, the 3.12 Release Schedule
• Report bugs at https://github.com/python/cpython/issues.
• Help fund Python and its community.

And now for something completely different

Two haikus apt, as Python's development springs ever forward.

I write, erase, rewrite

Erase again, and then

A poppy blooms.

Haiku by Katsushika Hokusai.

O snail

Climb Mount Fuji,

But slowly, slowly!

Haiku by Kobayashi Issa.

Enjoy the new releases

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/

Your release team,

Thomas Wouters

Ned Deily

Steve Dower

Python 3.11.1, 3.10.9, 3.9.16, 3.8.16, 3.7.16, and 3.12.0 alpha 3 are now available

Greetings! We bring you a slew of releases this fine Saint Nicholas / Sinterklaas day. Six simultaneous releases has got to be some record. There’s one more record we broke this time, you’ll see below.

In any case, updating is recommended due to security content:

• 3.7 - 3.12: gh-98739: Updated bundled libexpat to 2.5.0 to fix CVE-2022-43680 (heap use-after-free).
• 3.7 - 3.12: gh-98433: The IDNA codec decoder used on DNS hostnames by socket or asyncio related name resolution functions no longer involves a quadratic algorithm to fix CVE-2022-45061. This prevents a potential CPU denial of service if an out-of-spec excessive length hostname involving bidirectional characters were decoded. Some protocols such as urllib http 3xx redirects potentially allow for an attacker to supply such a name.
• 3.7 - 3.12: gh-100001: python -m http.server no longer allows terminal control characters sent within a garbage request to be printed to the stderr server log.
• 3.8 - 3.12: gh-87604: Avoid publishing list of active per-interpreter audit hooks via the gc module.
• 3.9 - 3.10 (already released in 3.11+ before): gh-97514: On Linux the multiprocessing module returns to using filesystem backed unix domain sockets for communication with the forkserver process instead of the Linux abstract socket namespace. Only code that chooses to use the “forkserver” start method is affected. This prevents Linux CVE-2022-42919 (potential privilege escalation) as abstract sockets have no permissions and could allow any user on the system in the same network namespace (often the whole system) to inject code into the multiprocessing forkserver process. This was a potential privilege escalation. Filesystem based socket permissions restrict this to the forkserver process user as was the default in Python 3.8 and earlier.
• 3.7 - 3.10: gh-98517: Port XKCP’s fix for the buffer overflows in SHA-3 to fix CVE-2022-37454.
• 3.7 - 3.9 (already released in 3.10+ before): gh-68966: The deprecated mailcap module now refuses to inject unsafe text (filenames, MIME types, parameters) into shell commands to address CVE-2015-20107. Instead of using such text, it will warn and act as if a match was not found (or for test commands, as if the test failed).

Python 3.12.0 alpha 3

Get it here, read the change log, sing a GPT-3-generated Sinterklaas song:

https://www.python.org/downloads/release/python-3120a3/

216 new commits since 3.12.0 alpha 2 last month.

Python 3.11.1

Get it here, see the change log, read the recipe for quark soup:

https://www.python.org/downloads/release/python-3111/

A whopping 495 new commits since 3.11.0. This is a massive increase of changes comparing to 3.10 at the same stage in the release cycle: there were “only” 339 commits between 3.10.0 and 3.10.1.

Python 3.10.9

Get it here, read the change log, see circular patterns:

https://www.python.org/downloads/release/python-3109/

165 new commits.

Python 3.9.16

Get it here, read the change log, consider upgrading to a newer version:

https://www.python.org/downloads/release/python-3916/

Security-only release with no binaries. 10 commits.

Python 3.8.16

Get it here, see the change log, definitely upgrade to a newer version:

https://www.python.org/downloads/release/python-3816/

Security-only release with no binaries. 9 commits.

Python 3.7.16

Get it here, read the change log, check PEP 537 to confirm EOL is coming to this version in June 2023:

https://www.python.org/downloads/release/python-3716/

Security-only release with no binaries. 8 commits.

We hope you enjoy the new releases!

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/

Your friendly release team,

Ned Deily @nad
Steve Dower @steve.dower
Pablo Galindo Salgado @pablogsal
Łukasz Langa @ambv
Thomas Wouters @thomas

 

 

 

 

 

 

 

Python 3.12.0 alpha 2 released

I'm pleased to announce the release of Python 3.12 alpha 2.

https://www.python.org/downloads/release/python-3120a2/

This is an early developer preview of Python 3.12.

Major new features of the 3.12 series, compared to 3.11

Python 3.12 is still in development. This release, 3.12.0a2 is the second of seven planned alpha releases.

Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process.

During the alpha phase, features may be added up until the start of the beta phase (2023-05-08) and, if necessary, may be modified or deleted up until the release candidate phase (2023-07-31). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.12 are still being planned and written. Among the new major new features and changes so far:

• Even more improved error messages. More exceptions potentially caused by typos now make suggestions to the user.
• Support for the Linux perf profiler to report Python function names in traces.
• The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623.
• In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2).
• The deprecated smtpd and distutils modules have been removed (see PEP 594 and PEP 632). The setuptools package (installed by default in virtualenvs and many other places) continues to provide the distutils module.
• A number of other old, broken and deprecated functions, classes and methods have been removed.
• (Hey, fellow core developer, if a feature you find important is missing from this list, let Thomas know.)

For more details on the changes in Python 3.12, see What's New In Python 3.12. The next pre-release of Python 3.12 will be 3.12.0a3, currently scheduled for 2022-12-05.

More resources

• Online Documentation
• PEP 693, the 3.12 Release Schedule
• Report bugs at https://github.com/python/cpython/issues.
• Help fund Python and its community.

And now for something completely different

Life, believe, is not a dream

So dark as sages say;

Oft a little morning rain

Foretells a pleasant day.

Sometimes there are clouds of gloom,

But these are transient all;

If the shower will make the roses bloom,

O why lament its fall?

Rapidly, merrily,

Life's sunny hours flit by,

Gratefully, cheerily,

Enjoy them as they fly!

What though Death at times steps in

And calls our Best away?

What though sorrow seems to win,

O'er hope, a heavy sway?

Yet hope again elastic springs,

Unconquered, though she fell;

Still buoyant are her golden wings,

Still strong to bear us well.

Manfully, fearlessly,

The day of trial bear,

For gloriously, victoriously,

Can courage quell despair!

Life, by Charlotte Brontë, from Poems by Currer, Ellis, and Acton Bell.

Charlotte wrote about the publishing under pseudonyms by her and her sisters, Emily and Anne, in a preface to Emily's Wuthering Heights:

Averse to personal publicity, we veiled our own names under those of Currer, Ellis and Acton Bell; the ambiguous choice being dictated by a sort of conscientious scruple at assuming Christian names positively masculine, while we did not like to declare ourselves women, because – without at that time suspecting that our mode of writing and thinking was not what is called "feminine" – we had a vague impression that authoresses are liable to be looked on with prejudice; we had noticed how critics sometimes use for their chastisement the weapon of personality, and for their reward, a flattery, which is not true praise.

Enjoy the new releases

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 organization contributions to the Python Software Foundation.

https://www.python.org/psf/

Your release team,

Thomas Wouters

Ned Deily

Steve Dower