RubyGems
oj
A fast JSON parser and serializer.
cjsonjson-parsermarshalleroj-gemrailsrubyruby-json-parser
Release cadenceEvery 4 weeks
Last releaseSep 29, 2026
Open advisories0
Changelog quality100% curated
GitHub Releases + CHANGELOG
Release history SecurityYou're on
276 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionoj 2 → 32.18.5 → 3.17.7Sep 29, 2026 UnknownSecurity31New5Changed13Fixed40Other23oj 1 → 21.4.7 → 2.18.5Mar 22, 2017 Unknownoj 0.9 → 10.9.0 → 1.4.7Dec 9, 2012 Unknownoj 0.8 → 0.90.8.0 → 0.9.0Mar 5, 2012 Unknownoj 0.7 → 0.80.7.0 → 0.8.0Feb 27, 2012 Unknownoj 0.6 → 0.70.6.0 → 0.7.0Feb 26, 2012 Unknownoj 0.5 → 0.60.5.2 → 0.6.0Feb 22, 2012 Unknown
VersionChannelDateChangesSecurity
3.17.7 StableSep 29, 2026Changed3Fixed63.17.6 StableAug 10, 2026Fixed13.17.5 StableJul 31, 2026Security20Changed1Fixed14Other143.17.4 StableJul 14, 2026Fixed23.17.3 StableJun 4, 2026Security10Fixed2Fix3.17.1 StableMay 16, 2026Security1New1Fixed1Other13.17.0 StableApr 19, 2026New13.16.17 youStableApr 12, 2026New1Changed1Fixed3Other23.16.16 StableMar 12, 2026Fixed13.16.15 StableFeb 6, 2026Fixed13.16.14 StableFeb 4, 2026Changed2Fixed13.16.13 StableDec 5, 2025Changed1Fixed1Other23.16.12 StableOct 30, 2025Changed1Fixed2Other13.16.11 StableMay 30, 2025Fixed13.16.10 StableFeb 25, 2025Changed23.16.9 StableDec 28, 2024Other23.16.8 StableDec 14, 2024Fixed13.16.7 StableNov 1, 2024Changed1Fixed13.16.6 StableSep 9, 2024Fixed13.16.5 StableAug 7, 2024New1Changed1