page. During the deprecation period, the styles will only be loaded on pages
which contain 'mw-ui-button' in their HTML. Starting in 1.28, the styles will
only be loaded if explicitly required.
+* If search returns zero results and current search engine has a "did you mean"
+ suggestion, results for suggestion will be shown. Can be disabled by setting
+ $wgSearchRunSuggestedQuery to false.
==== External libraries ====
* Update es5-shim from v4.0.0 to v4.1.5.