Random Thoughts.....What Are You Thinking?

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*¹
The Wii U will continue downloading and installing software even if the system is turned off.
Disc drive no longer spins when playing downloaded games/applications.

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"*²
"Auto Power-Down" has been renamed "Power Settings"

*1 User selection may be necessary.
*2 A similar option has been removed from Nintendo eShop, Miiverse, and the Internet Browser

Changes to Miiverse:

Added support for the Wii Remote, Wii U Pro Controller, and Classic Controller
Handwritten posts will now also display on the TV screen during creation
"Undo" and "Redo" buttons are now available when creating a handwritten post
Removed screen size setting. This option can now be adjusted from System Settings

Changes to Nintendo eShop:

Software downloaded from the Nintendo eShop will include released updates and will no longer need to be updated after installation
Removed screen size setting. This option can now be adjusted from System Settings

Changes to the Internet Browser:

Added support for the Wii Remote and Wii U Pro Controller
Added the option to change search engines when performing a keyword search
Added the option to return to the start page from the bookmark menu
Removed screen size setting. This option can now be adjusted from System Settings

Changes to Download Management:

Added the option to change the priority of downloads
Random Bits

Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.
The Wii U Virtual Console will be added the day after the update.

Further improvements to overall system stability Shorter Load times and other minor adjustments have been made to enhance the user experience

The Wii U update does not include the Wii U Virtual Console, but as the changelog states, it will launch the day after the update. The games available at launch are limited, but will likely grow rapidly in number, culminating in the release of EarthBound later this year.