Windows – Your updating now, theres nothing you can do, and I will be sure to reboot without asking you while your in the middle of something. No worries, I will give you 3 seconds to click save before I forcibly close what your working on.
Linux – you can update if you want I really don’t care, hell you can tell me to never warn about updates ever again without jumping through any hoops at all.
Mac – You can update now or later, it really doesn’t matter. If you wait too long, mass updating will most likely fuck your computer…have a nice day!