2015i vs 2016

[Mikef]

I have a 2015i (2015 and a half) Yukon XL Denali. I'm getting ready to order the exact same 2016 model. Any differences at all? Thank you.

 

[DCYukon]

I was in a loaner the other day and I can say the infotainment setup is upgraded. Can't tell if it was just the "brains" of the unit or more than that but it made me want to retrofit my setup which still flickers and does random bad things.