Actually I'm looking through the setting and I guess it's actually just the update for HD voice calling...
Which I read about a couple days ago but assumed I wouldn't get it since I'm on t mobile. However I'm going through my settings now and the advanced calling option is there but it wont let me toggle it on (probably because it knows I'm not on Verizon). I just noticed the only thing that changed in my phones about section was the firmware number so I thought it was it sorry for any confusion I may have caused to anyone reading this