Wii U System Update 5.5.4 Now Available
Nintendo has released a new Wii U system update worldwide, with the console’s current version now on 5.5.4.
The last system update that the console received was in September 2018, and, while official patch notes have not yet been published in any region, we can assume that they will be as ambiguous as they usually are.
For the three most recent system updates, Nintendo has simply stated: “Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.”
Wii U System Update Version 5.5.4 Patch Notes