As with most wikis, Wagn can show you recent activity — just click on the Recent link at the top of every page and it will show you the most recently changed cards, and who made the change. If a card was created, it will note that it was "added". If the content of a card was changed, it will note how long ago it was "last edited" (and clicking on those words will show you the change). If something else was changed about a card (its name or permissions, a user's password, etc.) it will note that it was "updated".

The list shows 50 cards at a time. To page through earlier groups of 50, use the usual search paging interface at the top of the list.

Also, RecentChangesCamp is the name of the annual-ish gathering where Wagn was conceived.