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json

JSON Implementation for Ruby

About
jsonjson-parserruby
github.com/ruby/jsonRubyFlorian Frank786 · 386 forks · 134 contributors
Compare
Compares against 3.1.0 (latest stable)
Latest Stable3.1.0Oct 13, 2026
Latest RC3.0.0.rc1Aug 11, 2026
Latest Alpha2.8.0.alpha1Nov 6, 2024
Release cadenceEvery 8 days
Last releaseOct 13, 2026
Open advisories0
Changelog quality95% curated
GitHub Releases + CHANGELOG, gaps for some releases
Release history SecurityYou're on
2.x3.x
STABLE · RCPRE-RELEASE2024AprJulOct2025AprJulOct2026AprJulOct

78 older or filtered releases not shown.

Upgrade guides

Breaking changes and a migration checklist for each major version
json 2 → 32.21.2 → 3.1.0Oct 13, 2026 BreakingBreaking26Platform1New2Changed5Fixed5json 1 → 21.8.6 → 2.21.2Jul 31, 2026 BreakingBreaking12Security4Deprecated11New14Changed29Fixed52Other13json 0.4 → 10.4.3 → 1.8.6Jan 13, 2017 Unknown
VersionChannelDateChangesSecurity
3.1.0 StableOct 13, 2026Breaking1Platform1New1Changed1Fixed23.0.2 youStableSep 9, 2026Fixed13.0.1 StableSep 8, 2026Fixed13.0.0 StableSep 7, 2026Breaking22New1Changed3Fixed13.0.0.rc1 RCAug 11, 2026Breaking20Security3Changed22.21.2 StableJul 31, 2026Security1Fix2.21.1 StableJul 13, 2026Fixed12.21.0 StableJul 12, 2026New2Fixed2Other12.20.0 StableJun 23, 2026Deprecated1New1Changed3Fixed12.19.9 StableJun 11, 2026Security1Fix2.19.8 StableJun 3, 2026Fixed22.19.7 StableMay 28, 2026Fixed42.19.6 StableMay 28, 2026Fixed22.19.5 StableMay 4, 2026Changed12.19.4 StableApr 18, 2026Fixed12.19.3 StableMar 25, 2026Fixed12.19.2 StableMar 18, 2026Security1Fix2.19.1 StableMar 8, 2026Fixed12.19.0 StableMar 6, 2026New1Fixed12.18.1 StableFeb 3, 2026Fixed1