* The precise format of metric datagrams produced by the UDP profiler and stats counter
may now be specified as $wgUDPProfilerFormatString and $wgStatsFormatString,
respectively.
+* (bug 54597) $wgBlockOpenProxies, $wgProxyPorts, $wgProxyScriptPath, and
+ $wgProxyMemcExpiry have been removed, along with the open proxy scanner
+ script they were added for.
=== New features in 1.22 ===
* (bug 44525) mediawiki.jqueryMsg can now parse (whitelisted) HTML elements and attributes.