Nintendo has released a small Wii U system update, about 184MB, that addresses some small bugs and adds improvements to the standby functions.

Version 3.1.0 U available via wireless Internet connection includes the following improvements:

Improvements to Standby Functions:

The standby functions will now regularly connect to the Internet when the Wii U is powered down to check for available SpotPass data or software and system updates. Software updates will be installed while the Wii U is powered down, and system updates will be installed the next time the Wii U is powered on. For further detailed information, click here.

Improvements to system stability and usability:

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

*A system update providing further additions to system functionality is planned for release between the end of September and beginning of October.