+* WikiRevision::$fileIsTemp was deprecated.
+* WikiRevision::$importer was deprecated.
+* WikiRevision::$user was deprecated.
+* Article::getLastPurgeTimestamp(), WikiPage::getLastPurgeTimestamp(), and the
+ WikiPage::PURGE_* constants are deprecated, and the functions will always
+ return false. They were a hack for an issue that has since been fixed.
+* Hook 'EditPageBeforeEditChecks' is now deprecated. Instead use the new hook
+ 'EditPageGetCheckboxesDefinition', or 'EditPage::showStandardInputs:options'
+ if you don't actually care about checkboxes and just want to add some HTML
+ to the page.
+* Selflinks are now rendered as href-less <a> tags with the class mw-selflink
+ rather than <strong> tags. The old class name, "selflink", was deprecated
+ and will be removed in a future release. (T160480)
+* (T156184) $wgRawHtml will no longer apply to internationalization messages.
+* Browser support for non-ES5 JavaScript browsers, including Android 2, Opera 12,
+ and Internet Explorer 9, was lowered from Grade A to Grade C.