OFFICIAL CHANGES TO WII U MENU (V 4.0.0): Version 4.0.0 U, available via an Internet connection, includes the following improvements:
New Features:
A feature to output video and sound to the Wii U GamePad when using Wii Mode¹
Users can choose to output to the TV and GamePad, or just the TV
A feature to automatically receive recommended software and demo titles from Nintendo using SpotPass
Support for USB keyboards
An option to disable use of a Nintendo Network ID on non-Nintendo hardware, such as PCs and smartphones
Support for Dolby® Pro Logic® II Surround Sound when playing Wii software
Changes to Wii U Menu:
Added a friend list icon to the Wii U Menu for easier access to the Friend List
Changes to System Settings:
An option to automatically receive recommended software is now available under "Internet"
A setting to select which cable outputs sound is available through "TV"
Users can choose to output sound through an HDMI cable, non-HDMI cable, or both cables at the same time. Click here for instructions
A setting to adjust the hourly interval