Fresh to a CPAN mirror near you: CGI::Wiki 0.52 and CGI::Wiki::Kwiki 0.50.
CGI::Wiki's list_recent_changes method now accepts the parameters 'include_all_changes' (if a node has been changed more than once, return it more than once) and 'between_days' (return all changes between 1 and 2 days ago, for example).
CGI::Wiki::Kwiki now takes advantage of this to show changes up to 30 days ago, categorised nicely as 'last 24 hours', 'last week', 'last fortnight', 'last 30 days'. See for example http://london-crafts.org/?node=RecentChanges
Kake