RubyGems
selenium-webdriver
Selenium is a browser automation tool for automated testing of webapps and more
dotnetjavajavascriptpythonrubyrustseleniumwebdriver
github.com/SeleniumHQ/seleniumselenium.devApache-2.0Alex Rodionov, Titus Fortner, Thomas Walpole34.6k · 8.7k forks · 956 contributors
Release cadenceEvery 3 weeks
Last releaseOct 29, 2026
Open advisories0
Changelog quality88% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
222 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionselenium-webdriver 3 → 43.142.7 → 4.52.0Oct 29, 2026 BreakingBreaking94Security11Platform5Deprecated44New354Changed592Fixed404Other1283selenium-webdriver 2 → 32.53.4 → 3.142.7Dec 27, 2019 Unknownselenium-webdriver 0.2 → 20.2.2 → 2.53.4Jun 28, 2016 Unknownselenium-webdriver 0.1 → 0.20.1.4 → 0.2.2Jun 22, 2011 Unknownselenium-webdriver 0.0 → 0.10.0.29 → 0.1.4Mar 21, 2011 Unknown
VersionChannelDateChangesSecurity
4.52.0 StableOct 29, 2026No changes listed4.51.0 youStableOct 9, 2026Breaking1Platform1New4Changed3Fixed9Other194.50.0 StableSep 30, 2026Breaking2Deprecated1New7Changed8Fixed7Other294.49.0 StableSep 9, 2026Breaking1New4Changed5Fixed8Other214.48.0 StableAug 27, 2026New7Changed3Fixed7Other184.47.0 StableAug 10, 2026Breaking3Deprecated1New10Changed16Fixed13Other344.46.0 StableJul 11, 2026Security2Deprecated1New6Changed8Fixed12Other194.45.0 StableJun 16, 2026Breaking2Security1Deprecated3New16Changed28Fixed13Other784.44.0 StableMay 12, 2026Breaking4Deprecated2New8Changed10Fixed14Other364.43.0 StableApr 10, 2026No changes listed4.42.0 StableApr 9, 2026Breaking4Deprecated1New14Changed32Fixed16Other374.41.0 StableFeb 20, 2026Breaking7Security1New14Changed35Fixed17Other634.40.0 StableJan 18, 2026Breaking4Security1Deprecated3New21Changed18Fixed22Other894.39.0 StableDec 6, 2025Breaking1Security1New16Changed32Fixed12Other384.38.0 StableOct 25, 2025Breaking1New1Changed1Fixed2Other224.37.0 StableOct 17, 2025Breaking3Platform1New7Changed14Fixed8Other204.36.0 StableOct 2, 2025Breaking1New11Changed29Fixed16Other274.35.0 StableAug 12, 2025Breaking4New15Changed25Fixed13Other274.34.0 StableJun 29, 2025Breaking1Deprecated4New18Changed18Fixed15Other364.33.0 StableMay 23, 2025Breaking3New5Changed7Fixed2Other11