It would seem I don’t download enough WiiWare games. Apparently, Nintendo recently released an update to Dr. Mario Online RX, which I don’t have, and no one knew what exactly what it was for. Nintendo has released a statement clarifying (sort of) what it does:

The optional update refines the way the leaderboards are displayed.

I’m also hearing that My Pokemon Ranch got an update, too. You all need to tell me about these things!

GoNintendo