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Python adopts a 12-month release cycle, Hacker News

Thelong discussionon changing the Python project’s release cadence has come to a conclusion: the project will now be releasing new versions on an annual basis. SeePEP 602for the details on how it is expected to work.







From: “Brett Cannon”
To: python-dev-AT
Subject: [Python-Dev] Accepting PEP 602 – Annual Release Cycle for Python
Date: Wed, (Oct) (**************************************************: (*************************************************: 35 – 0000
Archive-link: Article
On behalf of the steering council I am happy to announce that as BDFL-Delegate I am accepting PEP 602 to move us to an annual release schedule (gated on a planned update; see below).  The steering council thinks that having a consistent schedule every year when we hit beta, RC, and final it will help the community:  * Know when to start testing the beta to provide feedback  * Known when the expect the RC so the community can prepare their projects for the final release  * Know when the final release will occur to coordinate their own releases (if necessary) when the final release of Python occurs  * Allow core developers to more easily plan their work to make sure work lands in the release they are targeting  * Make sure that core developers and the community have a shorter amount of time to wait for new features to be released  The acceptance is gated on Łukasz updating PEP 602 to reflect a planned shift in scheduling (he's been busy with a release of Black):  * 3 months for betas instead of 2  * 2 months for RCs instead of 1  This was discussed onhttps://discuss.python.orgin order to give the community enough time to provide feedback in the betas while having enough time to thoroughly test the RC and to prep for the final release so the delay from Python's final release to any new project releases is minimal. It should also fit into the release schedule of Linux distributions like Fedora better than previously proposed so the distributions can test the RC when they start preparing for their own October releases. If this turns out to be a mistake after we try it out for Python 3.9 we can then discuss going back to longer betas and shorter RCs for the release after that. This will not change when feature development is cut off relative to PyCon US nor the core dev sprints happening just before the final release or the alpha of the next version.  To help people who cannot upgrade on an annual cycle, do note that:  * PEP 602 now says that deprecations will last two releases which is two years instead of the current 18 months  * Now that the stable ABI has been cleaned, extension modules should feel more comfortable targeting the stable ABI which should make supporting newer versions of Python much easier  As part of the shift to a 2 year deprecation time frame I will be restarting discussions around PEP 387 as BDFL-Delegate so we can have a more clear deprecation and backwards-compatibility policy as well for those that find an annual cycle too fast which will be updated to reflect this two year time frame (head's up, Benjamin 😉).  Thanks to Łukasz, Nick, and Steve for PEPs 602, 605 , and 607 and everyone else who provided feedback on those PEPs! _______________________________________________ Python-Dev mailing list - [email protected]

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