Go update your system right now.
The Wii U system update is officially live in North America and Europe. Our staff are updating their Wii U's as you read this. Here are the full list of features:
New Features:
A standby function to download and install software while the system is powered off
Software purchased from the Nintendo eShop will automatically install in the background once the download is complete
Holding down the B Button while the Wii U logo is displayed during startup will load the Wii Menu
Changes to System Settings:
An option to transfer and/or copy between two USB storage devices in "Data Management"
The ability to select multiple software titles when transferring, copying, or deleting data in "Data Management"
The option to adjust screen size is now available under "TV"
"Auto Power-Down" has been renamed "Power Settings"
Changes to Miiverse
Changes to Nintendo eShop
Changes to the Internet Browser
Changes to Download Management
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience