* (bug 55818) BREAKING CHANGE: Removed undocumented 'Debug' hook in wfDebug.
This resolves an infinite loop when using $wgDebugFunctionEntry = true.
* (bug 56707) Correct tooltip of "Next n results" on query special pages.
+* (bug 56770) mw.util.addPortletLink: Check length before access array index.
=== API changes in 1.22 ===
* (bug 25553) The JSON output formatter now leaves forward slashes unescaped
'mediawiki.legacy.wikibits' (which IEFixes depends on) and that will import
IEFixes automatically if user agent conditions are met.
* Code specific to the Math extension was marked as deprecated.
+* mediawiki.util: mw.util.wikiGetlink has been renamed to getUrl. (The old name
+ still works, but is deprecated.)
== Compatibility ==