[Wikipedia-l] How to refresh the special pages

[Vina Wang]

On the Chinese wiki, some of the special pages, such as Special:Deadendpages, Special:Uncategorizedpages, are all very old.

These pages are from a backup (which looks to be at least a few months old).  How can these be refreshed?  Also, would it be possible to show which backup the page is from? 

Is this something only a developer can do, or something that a sysop can do as well?

-Vina