5.1.0

🚀 New features and improvements

• Require Jenkins 2.387.3 or newer (#1459) @MarkEWaite
• Allow $JENKINS_HOME/caches/ to be overridden (#1458) @jglick
• Use monochrome icons (#1457) @basil

👻 Maintenance

• Use consistent JenkinsRule variable name (#1455) @MarkEWaite

📦 Dependency updates

• Upgrade HtmlUnit from 2.x to 3.x (#1460) @timja-bot
• Bump plugin from 4.63 to 4.66 (#1456, #1459) @dependabot
• Use plugin bom 2143.ve4c3c9ec790a (#1462) @MarkEWaite
• Bump equalsverifier from 3.14.1 to 3.14.2 (#1461) @dependabot
• Bump maven-checkstyle-plugin from 3.2.2 to 3.3.0 (#1451) @dependabot