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  • Release – Python 3.14.0rc1

    Version: None

    Released: July 22, 2025

    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 …

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  • Release – Python 3.9.3

    Version: None

    Released: April 2, 2021

    This is the third maintenance release of Python 3.9 NOTE: The release you're looking at has been recalled due to unintentional breakage of ABI compatibility with C extensions built in Python 3.9.0 - 3.9.2. Details in bpo-43710. Please use Python 3.9.4 or newer instead. Python …

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  • PSF Weblog Policy

    PSF Weblog Policy Version 1.03 Accepted by the PSF Board, March 13 2006. This policy applies to the PSF weblog. Access Policies Officers will always have posting privileges for the weblog. Therefore, officers can always post items without requiring permission from anyone else. This access is removed when the person is no longer an officer. The Board will appoint a weblog editor, who will also have posting access. PSF members and PSF committees can submit items for posting to the weblog edit...

  • Release – Python 3.5.0b1

    Version: None

    Released: May 24, 2015

    Python 3.5.0b1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b1 was released on May 24th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0b3

    Version: None

    Released: July 5, 2015

    Python 3.5.0b3 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b3 was released on July 5th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0b4

    Version: None

    Released: July 26, 2015

    Python 3.5.0b4 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b4 was released on July 26th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0rc1

    Version: None

    Released: Aug. 11, 2015

    Python 3.5.0rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0rc1 was released on August 10th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0rc2

    Version: None

    Released: Aug. 25, 2015

    Python 3.5.0rc2 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0rc2 was released on August 25th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0rc3

    Version: None

    Released: Sept. 8, 2015

    Python 3.5.0rc3 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0rc3 was released on September 7th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.0rc4

    Version: None

    Released: Sept. 9, 2015

    Python 3.5.0rc4 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0rc4 was released on September 9th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.1rc1

    Version: None

    Released: Nov. 23, 2015

    Python 3.5.1rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.1rc1 was released on November 22th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.1

    Version: None

    Released: Dec. 7, 2015

    Python 3.5.1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.1 was released on December 6th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.5.2rc1

    Version: None

    Released: June 13, 2016

    Python 3.5.2rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.2rc1 was released on June 12th, 2016. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Release – Python 3.9.12

    Version: None

    Released: March 23, 2022

    This is the twelfth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.12, a bugfix release for the legacy 3.9 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest release of 3.11.x here. This is …

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  • Release – Python 3.5.3rc1

    Version: None

    Released: Jan. 3, 2017

    Python 3.5.3 release candidate 1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.3 release candidate 1 was released on January 2nd, 2017. Major new features of the 3.5 series, compared to 3.4 …

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  • Release – Python 3.5.3

    Version: None

    Released: Jan. 17, 2017

    Python 3.5.3 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.3 was released on January 17th, 2017. Major new features of the 3.5 series, compared to 3.4 Among the new major new features …

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  • Incompatibilities between Python 2.1[.x] and 2.2[.x]

    Incompatibilities between Python 2.1[.x] and 2.2[.x] <h3>Incompatibilties between Python 2.2.2 and Python 2.2.3</h3> <p>The following visible differences between Python 2.2.2 and Python 2.2.3 are intentional. <ul> <p><li>It is no longer possible to use object.__setattr__ to circumvent the restrictions on setting attributes of type objects. <p><li>list.extend() works with any iterable. <p><li>In pdb, you can no longer enable breakpo...

  • Release – Python 3.3.5rc1

    Version: None

    Released: Feb. 23, 2014

    Python 3.3.5 includes fixes for these important issues: a 3.3.4 regression in zipimport (see http://bugs.python.org/issue20621) a 3.3.4 regression executing scripts with a coding declared and Windows newlines (see http://bugs.python.org/issue20731) potential DOS using compression codecs in bytes.decode() (see http://bugs.python.org/issue19619 and http://bugs.python.org/issue20404) …

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  • Release – Python 3.3.5rc2

    Version: None

    Released: March 2, 2014

    Python 3.3.5 includes fixes for these important issues: a 3.3.4 regression in zipimport (see http://bugs.python.org/issue20621) a 3.3.4 regression executing scripts with a coding declared and Windows newlines (see http://bugs.python.org/issue20731) potential DOS using compression codecs in bytes.decode() (see http://bugs.python.org/issue19619 and http://bugs.python.org/issue20404) …

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  • Release – Python 3.3.5

    Version: None

    Released: March 9, 2014

    Python 3.3.5 includes fixes for these important issues: a 3.3.4 regression in zipimport (see http://bugs.python.org/issue20621) a 3.3.4 regression executing scripts with a coding declared and Windows newlines (see http://bugs.python.org/issue20731) potential DOS using compression codecs in bytes.decode() (see http://bugs.python.org/issue19619 and http://bugs.python.org/issue20404) …

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