New Super Mario Bros U upate to add Pro Controller support, in-app DLC

According to the Japanese version of MiiVerse, as noted by NeoGAF, New Super Mario Bros U will be updated when the New Super Luigi U DLC releases. The update will enable Pro Controller support and also allow you to pick up the new content directly from the game's menus rather than having to exit out to the eShop. There's no word on whether the patch is headed west yet.

Thanks, Joystiq.