Tuesday, February 18, 2020

Python 3.8.2rc2 is now available for testing

Python 3.8.2rc2 is the second release candidate of the second maintenance release of Python 3.8. Go get it here:

https://www.python.org/downloads/release/python-382rc2/

Why a second release candidate?

The major reason for RC2 is that GH-16839 has been reverted.

The original change was supposed to fix for some edge cases in urlparse (numeric paths, recognizing netlocs without //; details in BPO-27657). Unfortunately it broke third parties relying on the pre-existing undefined behavior.

Sadly, the reverted fix has already been released as part of 3.8.1 (and 3.7.6 where it’s also reverted now). As such, even though the revert is itself a bug fix, it is incompatible with the behavior of 3.8.1.

Please test.

Timeline

Assuming no critical problems are found prior to 2020-02-24, the currently scheduled release date for  3.8.2 (as well as 3.9.0 alpha 4!), no code changes are planned between this release candidate and the final release.

That being said, please keep in mind that this is a pre-release of 3.8.2 and as such its main purpose is testing.

Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.3 planned for April 2020 (during sprints at PyCon US).

What’s new?

The Python 3.8 series is the newest feature release of the Python language, and it contains many new features and optimizations. See the “What’s New in Python 3.8” document for more information about features included in the 3.8 series.

Detailed information about all changes made in version 3.8.2 specifically can be found in its change log.

We hope you enjoy Python 3.8!

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.

Saturday, January 25, 2020

Python 3.9.0a3 now available for testing

Go get it here: https://www.python.org/downloads/release/python-390a3/

This is an early developer preview of Python 3.9

Python 3.9 is still in development. This releasee, 3.9.0a3 is the third of six 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 (2020-05-18) and, if necessary, may be modified or deleted up until the release candidate phase (2020-08-10). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Major new features of the 3.9 series, compared to 3.8

Many new features for Python 3.9 are still being planned and written. Among the new major new features and changes so far:
  • PEP 602, Python adopts a stable annual release cadence
  • BPO 38379, garbage collection does not block on resurrected objects;
  • BPO 38692, os.pidfd_open added that allows process management without races and signals;
  • A number of standard library modules (audioop, ast, grp, _hashlib, pwd, _posixsubprocess, random, select, struct, termios, zlib) are now using the stable ABI defined by PEP 384.
  • (Hey, fellow core developer, if a feature you find important is missing from this list, let Łukasz know.)

The next pre-release of Python 3.9 will be 3.9.0a4, currently scheduled for 2020-02-17.

Thursday, December 19, 2019

Python 3.8.1, 3.7.6, 3.6.10, and 3.9.0a2 are now available!

from locale import seasons_greetings
seasons_greetings()

On behalf of the entire Python development community, and the currently serving Python release team in particular, I'm pleased to announce the unprecedented combined release of no less than four versions of Python. Let's dig in!

Python 3.8.1
Python 3.8.1 is the first maintenance release of Python 3.8. The Python 3.8 series is the newest feature release of the Python language, and it contains many new features and optimizations. You can find Python 3.8.1 here:

See the “What’s New in Python 3.8” document for more information about features included in the 3.8 series. Detailed information about all changes made in 3.8.1 can be found in its change log.

Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.2 planned for February 2020.

Python 3.7.6
Python 3.7.6, the next bugfix release of Python 3.7, is also available. You can find the release files, a link to the change log, and more information here:

Python 3.9.0a2
An early developer preview of Python 3.9 is also ready:
https://www.python.org/downloads/release/python-390a2/

Python 3.9 is still in development. This releasee, 3.9.0a2 is the second of six 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 (2020-05-18) and, if necessary, may be modified or deleted up until the release candidate phase (2020-08-10). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Python 3.6.10
And, one more thing: Python 3.6.10, the next security fix release of Python 3.6, is also available:

We hope you enjoy all those!
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 friendly release team,
Ned Deily
Steve Dower
Łukasz Langa

Wednesday, December 11, 2019

Python 3.7.6rc1 and 3.6.10rc1 are now available for testing

Python 3.7.6rc1 and 3.6.10rc1 are now available. 3.7.6rc1 is the release preview of the next maintenance release of Python 3.7;  3.6.10rc1 is the release preview of the next security-fix release of Python 3.6. Assuming no critical problems are found prior to 2019-12-18, no code changes are planned between these release candidates and the final releases. These release candidates are intended to give you the opportunity to test the new security and bug fixes in 3.7.6 and security fixes in 3.6.10. While we strive to not introduce any incompatibilities in new maintenance and security releases, we encourage you to test your projects and report issues found to bugs.python.org as soon as possible. Please keep in mind that these are preview releases and, thus, their use is not recommended for production environments.

You can find the release files, a link to their changelogs, and more information here:

Tuesday, December 10, 2019

Python 3.8.1rc1 is now available for testing

Python 3.8.1rc1 is the release candidate of the first maintenance release of Python 3.8.

The Python 3.8 series is the newest feature release of the Python language, and it contains many new features and optimizations. You can find Python 3.8.1rc1 here:

Assuming no critical problems are found prior to 2019-12-16, the scheduled release date for 3.8.1 as well as Ned Deily's birthday, no code changes are planned between this release candidate and the final release.

That being said, please keep in mind that this is a pre-release of 3.8.1 and as such its main purpose is testing.

See the “What’s New in Python 3.8” document for more information about features included in the 3.8 series. Detailed information about all changes made in 3.8.0 can be found in its change log.

Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.2 planned for February 2020.
  

We hope you enjoy Python 3.8!

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.

Friday, November 1, 2019

Python 3.5.9 is released

There were no new changes in version 3.5.9; 3.5.9 was released only because of a CDN caching problem, which resulted in some users downloading a prerelease version of the 3.5.8 .xz source tarball. Apart from the version number, 3.5.9 is identical to the proper 3.5.8 release.

You can download Python 3.5.9 here.