RubyGems
rubocop
Automatic Ruby code style checking tool.
code-formatterhacktoberfestlinterrubocoprubystatic-code-analysis
github.com/rubocop/rubocoprubocop.org/MITBozhidar Batsov, Jonas Arvidsson, Yuji Nakayama12.9k · 3.2k forks · 1.1k contributors
Release cadenceEvery 2 weeks
Last releaseOct 29, 2026
Open advisories0
Changelog quality88% curated
GitHub Releases + CHANGELOG, gaps for some releases
Release history SecurityYou're on
257 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionrubocop 0.93 → 10.93.1 → 1.92.2Oct 29, 2026 BreakingBreaking11Platform2Deprecated9New460Changed443Fixed2464Other10rubocop 0.92 → 0.930.92.0 → 0.93.1Oct 12, 2020 BreakingBreaking1New4Changed5Fixed26Other1rubocop 0.91 → 0.920.91.1 → 0.92.0Sep 25, 2020 Review neededNew3Changed3Fixed1rubocop 0.90 → 0.910.90.0 → 0.91.1Sep 23, 2020 Review neededNew7Changed1Fixed45Other3rubocop 0.89 → 0.900.89.1 → 0.90.0Sep 1, 2020 Unknownrubocop 0.88 → 0.890.88.0 → 0.89.1Aug 10, 2020 BreakingBreaking5Platform1New17Changed1Fixed30Other4rubocop 0.87 → 0.880.87.1 → 0.88.0Jul 13, 2020 Review neededNew10Changed3Fixed7rubocop 0.86 → 0.870.86.0 → 0.87.1Jul 7, 2020 BreakingBreaking3New10Changed1Fixed14Other1rubocop 0.85 → 0.860.85.1 → 0.86.0Jun 22, 2020 Review neededNew8Changed1Fixed9Other2rubocop 0.84 → 0.850.84.0 → 0.85.1Jun 7, 2020 BreakingBreaking1New8Fixed12rubocop 0.83 → 0.840.83.0 → 0.84.0May 21, 2020 BreakingBreaking1New3Changed2Fixed7Other1rubocop 0.82 → 0.830.82.0 → 0.83.0May 11, 2020 BreakingBreaking3New13Changed1Fixed13Other3rubocop 0.81 → 0.820.81.0 → 0.82.0Apr 16, 2020 BreakingBreaking1Platform1New8Fixed7rubocop 0.80 → 0.810.80.1 → 0.81.0Apr 1, 2020 BreakingBreaking1New17Changed2Fixed12Other1rubocop 0.79 → 0.800.79.0 → 0.80.1Feb 29, 2020 BreakingBreaking1New11Changed3Fixed15Other1rubocop 0.78 → 0.790.78.0 → 0.79.0Jan 6, 2020 Review neededNew2Changed1Fixed11rubocop 0.77 → 0.780.77.0 → 0.78.0Dec 18, 2019 BreakingBreaking1New2Changed1Fixed8rubocop 0.76 → 0.770.76.0 → 0.77.0Nov 27, 2019 BreakingBreaking3Fixed6rubocop 0.75 → 0.760.75.1 → 0.76.0Oct 28, 2019 BreakingBreaking1Changed3Fixed6rubocop 0.74 → 0.750.74.0 → 0.75.1Oct 14, 2019 BreakingBreaking1New7Changed9Fixed30rubocop 0.73 → 0.740.73.0 → 0.74.0Jul 31, 2019 Review neededNew1Changed1Fixed8Other2rubocop 0.72 → 0.730.72.0 → 0.73.0Jul 16, 2019 SafeNew3Fixed7Other2rubocop 0.71 → 0.720.71.0 → 0.72.0Jun 25, 2019 Unknownrubocop 0.70 → 0.710.70.0 → 0.71.0May 30, 2019 Review neededNew2Changed4Fixed4rubocop 0.69 → 0.700.69.0 → 0.70.0May 21, 2019 Review neededNew4Changed1Fixed3rubocop 0.68 → 0.690.68.1 → 0.69.0May 13, 2019 BreakingBreaking2Platform1New2Fixed10Other1rubocop 0.67 → 0.680.67.2 → 0.68.1Apr 30, 2019 BreakingBreaking2New12Changed1Fixed22Other5rubocop 0.66 → 0.670.66.0 → 0.67.2Apr 5, 2019 Unknownrubocop 0.65 → 0.660.65.0 → 0.66.0Mar 18, 2019 Review neededDeprecated2New8Changed3Fixed17Other3rubocop 0.64 → 0.650.64.0 → 0.65.0Feb 19, 2019 BreakingPlatform1New1Changed1Fixed5Other1rubocop 0.63 → 0.640.63.1 → 0.64.0Feb 10, 2019 Review neededNew2Changed1Fixed11Other3rubocop 0.62 → 0.630.62.0 → 0.63.1Jan 22, 2019 Review neededNew5Changed5Fixed15rubocop 0.61 → 0.620.61.1 → 0.62.0Jan 1, 2019 Review neededNew1Changed3Fixed18rubocop 0.60 → 0.610.60.0 → 0.61.1Dec 6, 2018 Review neededNew4Changed1Fixed22rubocop 0.59 → 0.600.59.2 → 0.60.0Oct 26, 2018 SafeNew5Fixed9Other1rubocop 0.58 → 0.590.58.2 → 0.59.2Sep 24, 2018 Review neededNew12Changed8Fixed38Other4rubocop 0.57 → 0.580.57.2 → 0.58.2Jul 23, 2018 Review neededNew4Changed6Fixed25Other1rubocop 0.56 → 0.570.56.0 → 0.57.2Jun 12, 2018 Unknownrubocop 0.55 → 0.560.55.0 → 0.56.0May 14, 2018 Review neededNew8Changed6Fixed18rubocop 0.54 → 0.550.54.0 → 0.55.0Apr 16, 2018 SafeNew7Fixed13Other3rubocop 0.53 → 0.540.53.0 → 0.54.0Mar 21, 2018 Review neededNew3Changed4Fixed21rubocop 0.52 → 0.530.52.1 → 0.53.0Mar 5, 2018 Unknownrubocop 0.51 → 0.520.51.0 → 0.52.1Dec 27, 2017 BreakingBreaking3New28Changed14Fixed58Other1rubocop 0.50 → 0.510.50.0 → 0.51.0Oct 18, 2017 BreakingBreaking4New12Changed3Fixed20Other1rubocop 0.49 → 0.500.49.1 → 0.50.0Sep 14, 2017 BreakingBreaking2New24Changed14Fixed39rubocop 0.48 → 0.490.48.1 → 0.49.1May 29, 2017 Unknownrubocop 0.47 → 0.480.47.1 → 0.48.1Apr 3, 2017 Unknownrubocop 0.46 → 0.470.46.0 → 0.47.1Jan 18, 2017 BreakingBreaking3New18Changed5Fixed27Other1rubocop 0.45 → 0.460.45.0 → 0.46.0Nov 30, 2016 Review neededNew8Changed6Fixed8rubocop 0.44 → 0.450.44.1 → 0.45.0Oct 31, 2016 Unknownrubocop 0.43 → 0.440.43.0 → 0.44.1Oct 13, 2016 UnknownNew10Changed4Fixed21Other1rubocop 0.42 → 0.430.42.0 → 0.43.0Sep 19, 2016 BreakingBreaking3New12Changed1Fixed26Other2rubocop 0.41 → 0.420.41.2 → 0.42.0Jul 25, 2016 Unknownrubocop 0.40 → 0.410.40.0 → 0.41.2Jul 7, 2016 UnknownDeprecated1New23Changed2Fixed45Other2rubocop 0.39 → 0.400.39.0 → 0.40.0May 9, 2016 BreakingBreaking1New19Changed7Fixed23rubocop 0.38 → 0.390.38.0 → 0.39.0Mar 27, 2016 Review neededNew5Changed1Fixed11Other2rubocop 0.37 → 0.380.37.2 → 0.38.0Mar 9, 2016 Review neededNew7Changed3Fixed26Other5rubocop 0.36 → 0.370.36.0 → 0.37.2Feb 11, 2016 BreakingBreaking1New12Changed6Fixed53rubocop 0.35 → 0.360.35.1 → 0.36.0Jan 14, 2016 BreakingBreaking6Security1New59Changed17Fixed58Other1rubocop 0.34 → 0.350.34.2 → 0.35.1Nov 10, 2015 UnknownNew24Changed7Fixed33rubocop 0.33 → 0.340.33.0 → 0.34.2Sep 21, 2015 Review neededNew9Changed17Fixed40rubocop 0.32 → 0.330.32.1 → 0.33.0Aug 5, 2015 Review neededNew12Changed5Fixed19rubocop 0.31 → 0.320.31.0 → 0.32.1Jun 24, 2015 Review neededNew13Changed3Fixed24Other2rubocop 0.30 → 0.310.30.1 → 0.31.0May 5, 2015 SafeNew11Fixed12rubocop 0.29 → 0.300.29.1 → 0.30.1Apr 21, 2015 BreakingBreaking2New26Changed5Fixed30rubocop 0.28 → 0.290.28.0 → 0.29.1Feb 13, 2015 BreakingBreaking1New14Fixed27Other2rubocop 0.27 → 0.280.27.1 → 0.28.0Dec 10, 2014 Unknownrubocop 0.26 → 0.270.26.1 → 0.27.1Nov 8, 2014 Review neededNew8Changed1Fixed14Other2rubocop 0.25 → 0.260.25.0 → 0.26.1Sep 18, 2014 Unknownrubocop 0.24 → 0.250.24.1 → 0.25.0Aug 15, 2014 BreakingBreaking1Platform1New12Fixed14rubocop 0.23 → 0.240.23.0 → 0.24.1Jul 3, 2014 Unknownrubocop 0.22 → 0.230.22.0 → 0.23.0Jun 2, 2014 Unknownrubocop 0.21 → 0.220.21.0 → 0.22.0May 20, 2014 BreakingBreaking1New7Changed5Fixed12rubocop 0.20 → 0.210.20.1 → 0.21.0Apr 24, 2014 BreakingBreaking1Platform1New16Fixed13rubocop 0.19 → 0.200.19.1 → 0.20.1Apr 5, 2014 BreakingBreaking5New18Fixed30Other3rubocop 0.18 → 0.190.18.1 → 0.19.1Mar 17, 2014 BreakingBreaking4New25Changed1Fixed26Other2rubocop 0.17 → 0.180.17.0 → 0.18.1Feb 2, 2014 Unknownrubocop 0.16 → 0.170.16.0 → 0.17.0Jan 23, 2014 Unknownrubocop 0.15 → 0.160.15.0 → 0.16.0Dec 25, 2013 Unknownrubocop 0.14 → 0.150.14.1 → 0.15.0Nov 6, 2013 Unknownrubocop 0.13 → 0.140.13.1 → 0.14.1Oct 10, 2013 Unknownrubocop 0.12 → 0.130.12.0 → 0.13.1Sep 19, 2013 Unknownrubocop 0.11 → 0.120.11.1 → 0.12.0Aug 23, 2013 Unknownrubocop 0.10 → 0.110.10.0 → 0.11.1Aug 12, 2013 Unknownrubocop 0.9 → 0.100.9.1 → 0.10.0Jul 17, 2013 Unknownrubocop 0.8 → 0.90.8.3 → 0.9.1Jul 5, 2013 Unknownrubocop 0.7 → 0.80.7.2 → 0.8.3Jun 18, 2013 Unknownrubocop 0.6 → 0.70.6.1 → 0.7.2May 13, 2013 Unknownrubocop 0.5 → 0.60.5.0 → 0.6.1Apr 28, 2013 Unknownrubocop 0.4 → 0.50.4.6 → 0.5.0Apr 17, 2013 Unknownrubocop 0.3 → 0.40.3.2 → 0.4.6Apr 15, 2013 Unknownrubocop 0.2 → 0.30.2.1 → 0.3.2Apr 6, 2013 Unknownrubocop 0.1 → 0.20.1.0 → 0.2.1Jan 12, 2013 Unknownrubocop 0.0 → 0.10.0.0 → 0.1.0Dec 20, 2012 Unknown
VersionChannelDateChangesSecurity
1.92.2 StableOct 29, 2026No changes listed1.92.1 StableOct 22, 2026Fixed961.92.0 StableOct 10, 2026New11Changed5Fixed3281.91.0 youStableSep 10, 2026Breaking2New10Changed11Fixed551.90.0 StableAug 24, 2026New11Changed8Fixed35Other11.89.0 StableAug 4, 2026New11Changed23Fixed391.88.2 StableJul 8, 2026Changed8Fixed291.88.1 StableJul 1, 2026Changed2Fixed761.88.0 StableJun 16, 2026Deprecated1New1Changed4Fixed751.87.0 StableMay 30, 2026New3Changed1Fixed10Other11.86.2 StableMay 14, 2026New1Fixed231.86.1 StableApr 9, 2026Changed3Fixed191.86.0 StableMar 23, 2026New3Changed3Fixed271.85.1 StableMar 5, 2026Changed1Fixed31.85.0 StableFeb 26, 2026Breaking1New18Changed5Fixed161.84.2 StableFeb 12, 2026Fixed141.84.1 StableFeb 2, 2026Breaking1Changed1Fixed91.84.0 StableJan 27, 2026New8Changed5Fixed171.82.1 StableDec 24, 2025Fixed71.82.0 StableDec 17, 2025Breaking1New5Changed10Fixed17