This is just a warning so you don't end up with the same problems as me. I ran the update last night and since then my lock screen doesn't respond to any kind of touch or swipe. That means I can't even swipe to unlock it. My alarm app should have gone off this morning, but it didn't. Nor have I seen any notifications on the phone.

I've restarted it close to ten times by holding down power and volume, but that hasn't fixed it. I need to have a functioning phone in order to work, so I'll probably factory reset it in the next hour or so. (Unless anyone has better suggestions?)

Sorry that I don't have more guidance for anyone else, other than don't download the update just yet. There's already two other posts about it causing problems.