New:
new check: JavadocContentLocationCheck
Bug fixes:
RequireThisCheck: no violation produced when field is concatenated with String
Unused param not reported when missing description
Notes:
Checkstyle website does not resize to mobile browser screens.
fix website header rendering issue
Align XDocs and Javadocs for javadoc package
Dates of release if not properly rendering in Firefox
javadoc build problem on openjdk11
Resolve PMD deprecation warnings on InvalidSlf4jMessageFormat
Tests fail on OpenJDK 12 due to 'Failed to find the "modifiers" field in method setInternalState.'