mw:Help:CirrusSearch is out-of-date.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.
https://www.mediawiki.org/wiki/Help:CirrusSearch
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.
Related: T139528