The webappsDir argument to run Winstone with a directory full of WAR files has been removed without replacement.
(Winstone 6.19 changelog)
Allow pipeline jobs to run when built-in node is offline.
(issue 53958)
Further reduce number of recorded upstream causes.
(issue 21605)
Work around an upstream issue that could cause a hang in rare cases when two users load a configuration screen of the same type at the same time.
(issue 60997)