mastercore is a online resource that contains information about Super Smash Brothers for WiiU. Nintendo has decided to do incremental patches to the game over its lifetime, but they don't provide patch logs that tell what is changed. I, @dantarion decided to reverse engineer the game and create automated raw diffs of the patched files.
This information is presented in its rawest form. If you want easy to read patch notes, your best bet is to check out this community forum post on SmashBoards. Otherwise, if you want an inside look into how this game is put together, and if you want to add things to said forum post, this is the place to go to look for info.
Got a recommendation of how this can be better? Found a mistake? Don't be afraid to shoot me an email!
If you enjoy having this resource available, think about donating. Hours of hard work went into making this data availible for all, some of which started right as the 3DS version of the game first came out! If you'd like to donate, click here