The update is officially described by Nintendo as addressing "several issues to improve the gameplay experience". Technical analysis by dataminers revealed that the core change was a fix for a potential issue that could have been exploited during online play. How to Install
Ensure you have the base version of the game installed. Updates cannot run as standalone files. Update 3.0.3 -v1245184-NSP - megaup
: Dataminers (such as OatmealDome) discovered that the update primarily targets a security flaw in the game's netcode The update is officially described by Nintendo as