T-Mobile Galaxy S7, S7 Edge update is now rolling out. The Update fixes the power button and volume button bugs along with some more improvements. The Update size for Both Galaxy S7 and S7 Edge is 164.61 MB. This kinda Over The Air updates may Take while to hit your Phone. Maintain your Patience and Wait until you receive it.
Power and Volume key fix
Various system improvements
After updating your phone. Your Build Version will bump to G930TUVU2APD7 for the Galaxy S7 and G935TUVU2APD7 for the Galaxy S7 Edge. There you have it. if you are T-Mobile Customer be sure to inform in the Comments if you have got the update.