+* 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 <12.10, and Internet Explorer 9, was lowered from Grade A to Grade C.
+* Removed wikibits global methods deprecated since MediaWiki 1.17 (T122755):
+ is_gecko, is_chrome_mac, is_chrome, webkit_version, is_safari_win, is_safari,
+ webkit_match, is_ff2, ff2_bugs, is_ff2_win, is_ff2_x11, opera95_bugs,
+ opera7_bugs, opera6_bugs, is_opera_95, is_opera_preseven, is_opera,
+ ie6_bugs, clientPC, changeText, killEvt, addHandler, hookEvent,
+ addClickHandler, removeHandler, getElementsByClassName, getInnerText,
+ setupCheckboxShiftClick, addCheckboxClickHandlers, mwEditButtons,
+ mwCustomEditButtons, injectSpinner, removeSpinner, escapeQuotes,
+ escapeQuotesHTML, jsMsg, addPortletLink, appendCSS, tooltipAccessKeyPrefix,
+ tooltipAccessKeyRegexp, updateTooltipAccessKeys.