RubyGems
actionmailer
Email composition and delivery framework (part of Rails).
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 quality98% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
450 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionactionmailer 7 → 87.2.4 → 8.1.4Sep 24, 2026 BreakingBreaking97Security19Platform1Deprecated30New310Changed208Fixed398Other87actionmailer 6 → 76.1.7.10 → 7.2.4Sep 24, 2026 BreakingBreaking147Security24Platform1Deprecated52New292Changed183Fixed389Other114actionmailer 5 → 65.2.8.1 → 6.1.7.10Oct 23, 2024 Unknownactionmailer 4 → 54.2.11.3 → 5.2.8.1Jul 12, 2022 Unknownactionmailer 3 → 43.2.22.5 → 4.2.11.3May 15, 2020 Unknownactionmailer 2 → 32.3.18 → 3.2.22.5Sep 14, 2016 Unknownactionmailer 1 → 21.3.6 → 2.3.18Mar 18, 2013 Unknownactionmailer 0.9 → 10.9.1 → 1.3.6Jul 25, 2009 Unknownactionmailer 0.8 → 0.90.8.1 → 0.9.1Jul 25, 2009 Unknownactionmailer 0.7 → 0.80.7.1 → 0.8.1Jul 25, 2009 Unknownactionmailer 0.6 → 0.70.6.1 → 0.7.1Jul 25, 2009 Unknownactionmailer 0.5 → 0.60.5.0 → 0.6.1Jul 25, 2009 Unknownactionmailer 0.4 → 0.50.4.0 → 0.5.0Jul 25, 2009 Unknownactionmailer 0.3 → 0.40.3.0 → 0.4.0Jul 25, 2009 Unknown
VersionChannelDateChangesSecurity
8.1.4 StableSep 24, 2026Security3New1Changed6Fixed1678.1.3.1 StableJul 29, 2026Security1Platform18.1.3 StableMar 24, 2026Changed1Fixed15Other18.1.2.1 StableMar 23, 2026Breaking1Security98.1.2 StableJan 8, 2026New2Changed1Fixed268.1.1 StableOct 28, 2025Changed2Fixed28.1.0 StableOct 22, 2025Breaking20Security2Deprecated7New110Changed75Fixed41Other48.1.0.rc1 RCOct 15, 2025Breaking9Deprecated1New22Changed7Fixed6Other108.1.0.beta1 BetaSep 4, 2025Breaking16Deprecated6New83Changed33Fixed15Other478.0.5.1 youStableJul 29, 2026Security1Platform18.0.5 StableMar 24, 2026New1Fixed248.0.4.1 StableMar 23, 2026Breaking1Security88.0.4 StableOct 28, 2025No changes listed8.0.3 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, 2024Breaking22Security1Deprecated8New46Changed50Fixed20Other18.0.0.rc2 RCOct 30, 2024Breaking1New1Changed3Fixed3Other2