Last modified: 2014-02-06 01:43:21 UTC
With Gerrit change #107988, ActiveUsers is only registered as a special page when $wgMiserMode == false. This means that when a MiserMode wiki is upgraded to a MediaWiki version that includes this change, Special:ActiveUsers will not be recognised as a special page, and any links to it will become a redlink. Instead we should show a message such as "This special page is disabled".
Change 109496 had a related patch set uploaded by TTO: Give a meaningful message when Special:ActiveUsers is disabled https://gerrit.wikimedia.org/r/109496
Change 109496 abandoned by TTO: Give a meaningful message when Special:ActiveUsers is disabled Reason: No longer needed, per Aaron Schulz https://gerrit.wikimedia.org/r/109496
As far as I know, it was only ActiveUsers that had this problem, and that is now resolved in Gerrit change #110299.