mw:Help:CirrusSearch is out-of-date. It is the help page for WMF-wikis as they all use CirrusSearch. Information should be updated to reflect the current state. Help with translations should also be politely asked.
Ideally, it would be great if the documentation at mw:Help:CirrusSearch could be linked from all wiki's instead of each hosting their own copy that can quickly diverge from what is being documented on MediaWiki.org. However, I can't rightly ask folks to consider that until this documentation is accurate.