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  • Release – Python 3.15.0a2

    Version: None

    Released: Nov. 19, 2025

    This is an early developer preview of Python 3.15 Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. This release, 3.15.0a2, is the second of seven planned alpha releases. Alpha releases are intended to make it easier to test the …

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  • Release – Python 3.15.0a3

    Version: None

    Released: Dec. 16, 2025

    This is an early developer preview of Python 3.15 Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. This release, 3.15.0a3, is the third of seven planned alpha releases. Alpha releases are intended to make it easier to test the …

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  • Release – Python 3.9.0a5

    Version: None

    Released: March 23, 2020

    This is an early developer preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0a5 is the fifth 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 …

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  • Release – Python 3.9.0a4

    Version: None

    Released: Feb. 26, 2020

    This is an early developer preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0a4 is the fourth 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 …

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  • Release – Python 3.10.0a2

    Version: None

    Released: Nov. 3, 2020

    This is an early developer preview of Python 3.10 Major new features of the 3.10 series, compared to 3.9 Python 3.10 is still in development. This releasee, 3.10.0a2 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current …

  • Release – Python 3.10.0a3

    Version: None

    Released: Dec. 7, 2020

    This is an early developer preview of Python 3.10 Major new features of the 3.10 series, compared to 3.9 Python 3.10 is still in development. This releasee, 3.10.0a3 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current …

  • Release – Python 3.10.0a4

    Version: None

    Released: Jan. 4, 2021

    This is an early developer preview of Python 3.10 Major new features of the 3.10 series, compared to 3.9 Python 3.10 is still in development. This release, 3.10.0a4 is the fourth of six planned alpha releases. Alpha releases are intended to make it easier to test the current …

  • Release – Python 2.3.7

    Version: None

    Released: March 11, 2008

    Python 2.3 is now well and truly in bugfix-only mode; no new features are being added, and only security critical bugs have been fixed. This release addresses a number of cases interpreter might have crashed in certain boundary conditions. See the detailed release notes for more details. …

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  • Release – Python 3.9.0b1

    Version: None

    Released: May 19, 2020

    This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b1, is the first of four planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their …

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  • Release – Python 3.9.0b3

    Version: None

    Released: June 9, 2020

    This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b3, is the third of five planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their …

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  • Release – Python 3.9.0rc1

    Version: None

    Released: Aug. 11, 2020

    This is the first release candidate of Python 3.9 This release, 3.9.0rc1, 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 …

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  • Release – Python 3.10.0b3

    Version: None

    Released: June 17, 2021

    This is a beta preview of Python 3.10 Python 3.10 is still in development. 3.10.0b3 is the third of four planned beta release previews. 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 …

  • Release – Python 2.4.5

    Version: None

    Released: March 11, 2008

    Python 2.4 is now in security-fix-only mode. No new features are being added, and bugs are not fixed anymore unless they affect the stability and security of the interpreter, or of Python applications. This release includes just a small number of fixes, primarily preventing crashes of the interpreter in …

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  • Release – Python 2.3.6

    Version: None

    Released: Nov. 1, 2006

    Python 2.3 is now well and truly in bugfix-only mode; no new features are being added, and only security critical bugs have been fixed. There are 3 bugs fixed in this release - a problem with the email package's handling of RFC2231 headers, the unicode repr() fix for PSF-2006-01, …

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  • Release – Python 3.9.0b2

    Version: None

    Released: June 9, 2020

    WARNING: this release has a known regression See BPO-40924 for details. Use Python 3.9.0b3 or newer instead, please. This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b2, is the second of four planned beta release previews. Beta release previews …

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  • Release – Python 3.10.3

    Version: None

    Released: March 16, 2022

    This is the third maintenance release of Python 3.10 Python 3.10.3 is the newest major release of the Python programming language, and it contains many new features and optimizations. Major new features of the 3.10 series, compared to 3.9 Among the new major new features and …

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  • Release – Python 3.10.0a5

    Version: None

    Released: Feb. 2, 2021

    This is an early developer preview of Python 3.10 Major new features of the 3.10 series, compared to 3.9 Python 3.10 is still in development. This release, 3.10.0a5 is the fifth of seven planned alpha releases. Alpha releases are intended to make it easier to test the current …

  • Release – Python 3.7.0b5

    Version: None

    Released: May 30, 2018

    This is a beta preview of Python 3.7 Python 3.7 is still in development. This release, 3.7.0b5, is now the final planned beta release preview. Originally, 3.7.0b4 was intended to be the final beta but, due to some unexpected compatibility issues discovered during beta testing of third-party packages, …

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  • Release – Python 3.15.0a4

    Version: None

    Released: Jan. 13, 2026

    This is an early developer preview of Python 3.15 Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. This release, 3.15.0a4, is the fourth of seven planned alpha releases. Alpha releases are intended to make it easier to test the …

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  • Release – Python 3.14.0a6

    Version: None

    Released: March 14, 2025

    Here comes the penultimate alpha. This is an early developer preview of Python 3.14 Major new features of the 3.14 series, compared to 3.13 Python 3.14 is still in development. This release, 3.14.0a6, is the sixth of seven planned alpha releases. Alpha releases are intended to …

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