Mario Kart 7 update released, culls shortcut exploits
As promised, Nintendo has released a patch for Mario Kart 7 which nixes the shortcut exploits contained in Wuhu Island Loop, Wuhu Mountain Loop and GBA Bowser Castle 1. In order to receive the patch, you'll need to install the latest 3DS system update which will also allow you to continue playing online. Offline mode is still available without the patch.