Mine did ask permission to download then asked permission to install.
So you won't panic as I did I recommend backing up everything on the phone before updating. When you reboot phone stays on Verizon splash screen for about 15 minutes. I was getting panicky that my phone was frozen. Just part of the update I guess. Anyway I would have felt better had I backed up my files, especially my memos which I do not entrust to the cloud but also some work files. Somebody's phone always freezes during updates especially LG so if you have important data not backed up do it first.
I think all we got is BlueBorne protection?
BTW, battery went from 100% to 80% just doing the update.