This release introduces the Notification menu to follow wiki activity more easily. The Administration has been re-organized with a collapsible menu. The Menu Application becomes responsive with burger menus. For the advanced users, the CKEditor integration adds support for dedicated Insert Macro tool bar buttons and the Extension Manager adds support for conflict resolution configuration when installing an extension. As usual, the release also brings many bug fixes and other small improvements.
Full release notes available at http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/Data/XWiki/9.2-rc-1
See http://jira.xwiki.org/secure/IssueNavigator.jspa?reset=true&jqlQuery=category+in+%28%22Top+Level+Projects%22%29+and+fixVersion+in+%28%22%39.%32-rc-%31%22%29+and+resolution+in+%28%22Fixed%22%29 for more details