Revert compatibility fix for future releases of Firefox due to regressions it caused since 2.148.
(issue 54261, issue 54333, issue 54570)
Do not cache CSS/JS resource files for console annotations like Timestamper Plugin across Jenkins restarts.
(issue 38719)
In some cases, HTTP proxies with authentication did not work for HTTPS URLs.
(issue 48775)
Improve robustness when checking for updates. Add hudson.PluginManager.checkUpdateSleepTimeMillis and hudson.PluginManager.CHECK_UPDATE_ATTEMPTS system properties to adapt to unreliable networks.
(issue 54459, Jenkins features controlled by system properties)
Add support for killing child processes on AIX.
(issue 16867)
Only select compatible plugin updates when clicking Select All below the list.
(issue 20155)
Internal: Upgrade the Maven Jenkins Dev plugin from 9.4.5.v20170502 to 9.4.12.v20180830 to align it with the Jetty version.
(issue 54599)
Internal: Update Jenkins Test Harness from 2.36 to 2.41.1 to allow running tests with JDK11.
(issue 53863, changelog)
Internal: Introduce a new submodule for JDK8-only tests so that it is possible to run tests against codebase removed from JDK11.
(issue 53716)