Prevent NullPointerException in Plugin Manager when using an update center without support for plugin categories (regression in 2.270).
(issue 64445)
Fix race condition on authentication filters registration.
(issue 64465)
Dropped support for deprecated system properties: hudson.model.Hudson.logStartupPerformance, hudson.model.Hudson.initLogLevel, hudson.model.Hudson.parallelLoad, hudson.model.Hudson.killAfterLoad and hudson.model.Hudson.workspaceDirName.
Please use jenkins.model.Jenkins.-prefixed SystemProperties.
(pull 4962)
Remove support for queue.txt format (replaced by XML in 2009).
(pull 5123)