Mavenio.
io.projectreactor:reactor-core
Non-Blocking Reactive Foundation for the JVM
asynchronousflowfluxjvmmonoreactivereactive-extensionsreactive-streams
io.projectreactorgithub.com/reactor/reactor-coreApache-2.0Simon Baslé, Oleh Dokuka5.2k · 1.3k forks · 250 contributors
Release cadenceEvery 4 weeks
Last releaseOct 23, 2026
Open advisories0
Changelog quality97% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
131 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionVersionChannelDateChangesSecurity
3.9.0-RC1 RCOct 23, 2026Changed5Fixed1Other13.8.8 StableOct 23, 2026Changed5Other13.8.7 StableAug 20, 2026Fixed33.8.6 StableJun 8, 2026Changed4Other43.8.5 StableApr 14, 2026Changed33.8.4 StableMar 10, 2026Changed2Other13.8.3 StableFeb 10, 2026New33.8.2 StableJan 13, 2026New33.8.1 StableDec 9, 2025New2Fixed13.8.0 StableNov 7, 2025Deprecated1New10Changed2Fixed2Other33.8.0-RC1 RCOct 14, 2025Deprecated1New7Fixed13.8.0-M7 BetaSep 9, 2025New2Changed13.8.0-M6 BetaAug 12, 2025New33.8.0-M5 BetaJul 15, 2025New2Changed1Fixed13.8.0-M4 BetaJun 10, 2025New2Changed13.8.0-M3 BetaMay 13, 2025New2Changed13.8.0-M2 BetaApr 15, 2025New3Other13.8.0-M1 BetaMar 11, 2025New3Other13.7.19 youStableJun 8, 2026New2Other13.7.18 StableApr 14, 2026New1