In "Page information", I can see "Recent number of edits". The interval for recent edits is the same as the maximum allowed value for "Days to show in recent changes" and "Days to show in watchlist" in Special:Preferences. The interval for recent edits is set 30 days on Wikimedia projects, and 5 years on translatewiki.net. Is it defined in $wgRCMaxAge, or another configuration setting?