Players feared that Nintendo had secretly patched this technique to "balance" the game. They booted up their consoles, terrified their world records were now impossible to replicate.
While Nintendo rarely goes into granular detail, data miners and player reports suggest the update targets: mario kart 8 3.0.3 update
The lack of encryption also led to a fascinating, albeit controversial, discovery regarding hardware. Data miners found code referencing specific controller inputs that suggested the game engine processed inputs differently depending on whether you were using the Joy-Cons, the Pro Controller, or the GameCube Controller adapter. Players feared that Nintendo had secretly patched this
Despite the version jump from 3.0.1 to 3.0.3, the update did not introduce: the Pro Controller