RubyGems
simplecov
Code coverage for Ruby
code-qualitycoveragecoverage-librarycoverage-reportrailsrubytest-coverage
github.com/simplecov-ruby/simplecovMITErik Berlin, Benjamin Fleischer, Akira Matsuda +44.9k · 583 forks · 238 contributors
Release cadenceEvery 8 days
Last releaseSep 30, 2026
Open advisories0
Changelog quality75% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
58 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionsimplecov 0.22 → 10.22.0 → 1.3.2Sep 30, 2026 BreakingBreaking3Platform5Deprecated2New53Changed30Fixed29Other65simplecov 0.21 → 0.220.21.2 → 0.22.0Dec 23, 2022 SafeNew1Fixed1simplecov 0.20 → 0.210.20.0 → 0.21.2Jan 9, 2021 SafeNew3Fixed4Other2simplecov 0.19 → 0.200.19.1 → 0.20.0Nov 29, 2020 Unknownsimplecov 0.18 → 0.190.18.5 → 0.19.1Oct 25, 2020 Unknownsimplecov 0.17 → 0.180.17.1 → 0.18.5Feb 25, 2020 Unknownsimplecov 0.16 → 0.170.16.1 → 0.17.1Sep 16, 2019 Unknownsimplecov 0.15 → 0.160.15.1 → 0.16.1Mar 16, 2018 Unknownsimplecov 0.14 → 0.150.14.1 → 0.15.1Sep 11, 2017 SafeNew1Fixed7simplecov 0.13 → 0.140.13.0 → 0.14.1Mar 18, 2017 Unknownsimplecov 0.12 → 0.130.12.0 → 0.13.0Jan 25, 2017 Unknownsimplecov 0.11 → 0.120.11.2 → 0.12.0Jul 2, 2016 Unknownsimplecov 0.10 → 0.110.10.0 → 0.11.2Feb 3, 2016 Unknownsimplecov 0.9 → 0.100.9.2 → 0.10.0Apr 18, 2015 Unknownsimplecov 0.8 → 0.90.8.2 → 0.9.2Feb 18, 2015 Unknownsimplecov 0.7 → 0.80.7.1 → 0.8.2Nov 20, 2013 Unknownsimplecov 0.6 → 0.70.6.4 → 0.7.1Oct 12, 2012 Unknownsimplecov 0.5 → 0.60.5.4 → 0.6.4May 10, 2012 Unknownsimplecov 0.4 → 0.50.4.2 → 0.5.4Oct 12, 2011 Unknownsimplecov 0.3 → 0.40.3.9 → 0.4.2Apr 2, 2011 Unknown
VersionChannelDateChangesSecurity
1.3.2 StableSep 30, 2026Fixed11.3.1 StableSep 24, 2026Fixed41.3.0 StableSep 12, 2026Breaking2Platform1New2Changed5Fixed41.2.0 youStableSep 4, 2026Platform1Deprecated2New35Changed14Fixed41.1.1 StableAug 12, 2026New1Other11.1.0 StableAug 10, 2026New2Changed5Fixed3Other31.0.3 StableJul 26, 2026Fixed1Other11.0.2 StableJul 18, 2026Other21.0.1 StableJul 14, 2026Changed1Fixed11.0.0 StableJul 12, 2026Breaking1Platform3New13Changed5Fixed11Other581.0.0.rc5 RCJul 4, 2026Changed21.0.0.rc4 RCJun 26, 2026New1Changed2Fixed3Other11.0.0.rc3 RCJun 18, 2026No changes listed1.0.0.rc2 RCJun 10, 2026Changed51.0.0.rc1 RCJun 2, 2026Breaking1New16Changed25Fixed11Other220.22.0 StableDec 23, 2022New1Fixed10.21.2 StableJan 9, 2021Fixed30.21.1 StableJan 4, 2021Fixed10.21.0 StableJan 3, 2021New3Other20.20.0 StableNov 29, 2020No changes listed