My 950XL Dual Sim Unlocked is on its way. I'm on AT&T and I am aware that this phone only recently got VVM working. What I am wondering is what build that is. Do I have to get on the dev build track to get this feature, or will it work if I use the release preview ring? In other words, is VVM on the 950XL Dual Sim a Redstone-only feature, or was it "fixed" in the current release build?