I have a new 3DS that I use as my main one. My old one is solely for backing up saves/shenanigans. I never use it, so it's kind of a whatever thing lol.After installing CFW there's no reason not to update. There's absolutely nothing that works on 11.2 but not 11.6, while plenty of things that work in 11.6 and not 11.2 (eg very recent games and playing online).