PyPI

scikit-learn

A set of python modules for machine learning and data mining

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data-analysisdata-sciencemachine-learningpythonstatistics

github.com/scikit-learn/scikit-learn scikit-learn.orgBSD-3-Clause47.6M / week68k · 27.6k forks · 3.6k contributors

I'm on version…

Compares against 1.9.1 (latest stable)

Latest Stable1.9.1Sep 10, 2026

Latest RC1.9.0rc1May 20, 2026

Release cadenceEvery 2 months

Last releaseSep 10, 2026

Open advisories0

Changelog quality60% curated

GitHub Releases, gaps for some releases

Release history SecurityYou're on

1.x

STABLE · RCPRE-RELEASE Oct2024AprJulOct2025AprJulOct2026AprJul

54 older or filtered releases not shown.

Upgrade guides

Breaking changes and a migration checklist for each major version

scikit-learn 0.24 → 10.24.2 → 1.9.1Sep 10, 2026 Breaking1951 scikit-learn 0.23 → 0.240.23.2 → 0.24.2Apr 28, 2021 Breaking1 scikit-learn 0.22 → 0.230.22.2.post1 → 0.23.2Aug 4, 2020 Breaking112 scikit-learn 0.21 → 0.220.21.3 → 0.22.2.post1Mar 4, 2020 Breaking11 scikit-learn 0.20 → 0.210.20.4 → 0.21.3Jul 30, 2019 Safe2 scikit-learn 0.19 → 0.200.19.2 → 0.20.4Jul 30, 2019 Unknown scikit-learn 0.18 → 0.190.18.2 → 0.19.2Jul 15, 2018 Breaking1 scikit-learn 0.17 → 0.180.17.1 → 0.18.2Jun 21, 2017 Unknown scikit-learn 0.16 → 0.170.16.1 → 0.17.1Feb 18, 2016 Unknown scikit-learn 0.15 → 0.160.15.2 → 0.16.1Apr 14, 2015 Unknown scikit-learn 0.14 → 0.150.14.1 → 0.15.2Sep 5, 2014 Unknown scikit-learn 0.13 → 0.140.13.1 → 0.14.1Aug 9, 2013 Unknown scikit-learn 0.12 → 0.130.12.1 → 0.13.1Feb 23, 2013 Unknown scikit-learn 0.11 → 0.120.11 → 0.12.1Oct 8, 2012 Unknown scikit-learn 0.10 → 0.110.10 → 0.11May 8, 2012 Unknown scikit-learn 0.9 → 0.100.9 → 0.10Jan 11, 2012 Unknown

VersionChannelDateChangesSecurity

1.9.1 StableSep 10, 20261 1.9.0 StableJun 2, 202611 1.9.0rc1 RCMay 20, 2026No notes published 1.8.0 youStableDec 10, 20251 1.8.0rc1 RCNov 26, 2025No notes published 1.7.2 StableSep 9, 20251 1.7.1 StableJul 18, 2025No changes listed 1.7.0 StableJun 5, 20251 1.7.0rc1 RCMay 9, 2025No notes published 1.6.1 StableJan 10, 2025No changes listed 1.6.0 StableDec 9, 20241 1.6.0rc1 RCNov 15, 2024No notes published 1.5.2 StableSep 11, 2024No changes listed 1.5.1 StableJul 3, 2024No changes listed 1.5.0 StableMay 21, 202411Fix 1.5.0rc1 RCMay 6, 2024No notes published 1.4.2 StableApr 9, 202411 1.4.1.post1 StableFeb 16, 2024No changes listed 1.4.0 StableJan 18, 2024No notes published 1.4.0rc1 RCDec 20, 2023No notes published