Colin Hoffman

Hello, first time posting. I'm sure it has been asked prior to my post but I'll be honest 101 pages is a lot to go through. I'm looking at replacing my current (6 speed) transmission with either the 8 speed or maybe a 10 speed. First big question I have, because so far my research hasn't provided many answers is if an 8 or even a 10 speed could in fact fit into my 2014. Secondly, would the computer or any other electronics need updating inorder to support a newer transmission? Any help is appreciated.