+* Add deferrable update support for callback/closure.
+* Add TitleMove hook before page renames.
+* Revision deletion backend code is moved out of SpecialRevisiondelete
+* Add a variable (wgRedactedFunctionArguments) to redact the values sent as certain function
+ parameters from exception stack traces.
+* Added {{REVISIONSIZE}} variable to get the current size of a revision.
+* Add support for the LESS stylesheet language to ResourceLoader. LESS is a
+ stylesheet language that compiles into CSS. ResourceLoader file modules may
+ include LESS style files; ResourceLoader will compile these files into CSS
+ before sending them to the client.
+** The $wgResourceLoaderLESSVars configuration variable is an associative array
+ mapping variable names to string CSS values. These variables are considered
+ declared for all LESS files. Additional variables may be registered by
+ adding keys to the array.
+** $wgResourceLoaderLESSFunctions is an associative array of custom LESS
+ function names to PHP callables. See <http://leafo.net/lessphp/docs/#custom_functions>
+ for more details regarding custom functions.
+** $wgResourceLoaderLESSImportPaths is an array of file system paths. Files
+ referenced in LESS '@import' statements are looked up here first.
+* ResourceLoader supports hashes as module cache invalidation trigger (instead
+ of or in addition to timestamps).
+* Added $wgExtensionEntryPointListFiles for use in mergeMessageFileList.php.