Few key improved features,
Wikimedia developers are working on a new search system named CirrusSearch. From yesterday this search option is available as in secondary mode. You all are requested to test and provide feedback on this.
CirrusSearch updates the search index in near real time. So You should be able to search for your changes as soon as you make them.
CirrusSearch indexes expanded templates.
* Most of the special search syntax is the same. You can read the syntax here: https://www.mediawiki.org/wiki/Search/CirrusSearchFeatures