I was just having some fun, on a mission that took longer than supposed, when I was on the last part of the last level, when the update made me get off and start all over again. I'm not saying to ban updates or something stupid like that, but make it like when you lose connection with the game, except your invincible when they reboot, so you can go back to the area you had to leave because of the reboot. Just make it where when you reboot you go back to the place you left. I had to spend double the energy I should've today, and couldn't move on because this. OOO please consider this.
Aside from a recent one where there was a short warning, 90%+ of the time they give you a 90-minute warning that the update is coming. You should be able to finish whatever content you were doing in that time, if not then leave at that time so you don't waste the energy and get cut off at the last second. No need for them to code this in just because some people are too impatient to wait until after an update to complete a time consuming task.
The only thing I hope for is that they completely stop doing the almost no-warning reboots, although rare.