New Super Luigi U, a large DLC package available for New Super Mario Bros. U, was released yesterday. To coincide with the release, an update was made to New Super Mario Bros. U. As a significant number of fans have wanted since the game's release, the update allows players to use the Wii U Pro Controller to play New Super Mario Bros. U. Taizo Takemoto, the director of New Super Mario Bros. U, posted this news to Miiverse.
"Hello, this is Takemoto, the director of New SUPER MARIO BROS. U. An update for the game has been made available to go with the release of New SUPER LUIGI U. With this update, you can now purchase the New SUPER LUIGI U add-on content from within the game, and play using the Wii U Pro Controller. We've also opened a New SUPER LUIGI U community on Miiverse, so feel free to share your thoughts about Luigi, Nabbit, or anything else related to the game!" -- Taizo Takemoto
For those uncertain, you may download this update without purchasing the New Super Luigi U DLC.