RubyGems
activesupport
A toolkit of support libraries and Ruby core extensions extracted from the Rails framework.
activejobactiverecordframeworkhtmlmvcrailsruby
github.com/rails/railsrubyonrails.orgMITDavid Heinemeier Hansson58.9k · 24.5k forks · 7.1k contributors
Release cadenceSeveral a day
Last releaseSep 24, 2026
Open advisories0
Changelog quality100% curated
GitHub Releases
Release history SecurityYou're on
440 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionactivesupport 7 → 87.2.4 → 8.1.4Sep 24, 2026 BreakingBreaking51Security19Platform1Deprecated23New225Changed178Fixed372Other8activesupport 6 → 76.1.7.10 → 7.2.4Sep 24, 2026 BreakingBreaking66Security22Platform1Deprecated17New108Changed93Fixed297Other3activesupport 5 → 65.2.8.1 → 6.1.7.10Oct 23, 2024 Unknownactivesupport 4 → 54.2.11.3 → 5.2.8.1Jul 12, 2022 Unknownactivesupport 3 → 43.2.22.5 → 4.2.11.3May 15, 2020 Unknownactivesupport 2 → 32.3.18 → 3.2.22.5Sep 14, 2016 Unknownactivesupport 1 → 21.4.4 → 2.3.18Mar 18, 2013 Unknown
VersionChannelDateChangesSecurity
8.1.4 StableSep 24, 2026Security3New1Changed7Fixed1668.1.3.1 StableJul 29, 2026Breaking1Platform18.1.3 StableMar 24, 2026Changed1Fixed15Other18.1.2.1 StableMar 23, 2026Breaking1Security9Fix8.1.2 StableJan 8, 2026New2Changed1Fixed268.1.1 StableOct 28, 2025Changed2Fixed28.1.0 StableOct 22, 2025Breaking22Security2Deprecated8New110Changed76Fixed39Other48.1.0.rc1 RCOct 15, 2025Breaking7Deprecated1New21Changed15Fixed108.1.0.beta1 BetaSep 4, 2025Breaking13Security2Deprecated6New90Changed61Fixed27Other48.0.5.1 youStableJul 29, 2026Security1Platform18.0.5 StableMar 24, 2026New1Fixed248.0.4.1 StableMar 23, 2026Breaking1Security8Fix8.0.4 StableOct 28, 2025New1Fixed88.0.3 StableSep 22, 2025New2Changed2Fixed38Other18.0.2.1 StableAug 13, 2025Security28.0.2 StableMar 12, 2025Changed6Fixed368.0.1 StableDec 13, 2024New1Changed2Fixed228.0.0.1 StableDec 10, 2024Security1Changed18.0.0 StableNov 7, 2024Breaking23Security1Deprecated8New45Changed50Fixed20Other18.0.0.rc2 RCOct 30, 2024Security1New1Changed1Fixed6