I think that installing new versions often means that particular services need to be restarted. Rather than implement logic to restart relevant services, it probably just says "fuck it, reboot".
Eh, no. It only downloads the packages, then asks you to reboot and installs the new packages during the boot process. This means you get a clean system afterward in which no pre-update binaries are being run anymore. It just comes at the price that you need a full reboot for something that usually needs a session relogin at worst.
I think that installing new versions often means that particular services need to be restarted. Rather than implement logic to restart relevant services, it probably just says "fuck it, reboot".
Eh, no. It only downloads the packages, then asks you to reboot and installs the new packages during the boot process. This means you get a clean system afterward in which no pre-update binaries are being run anymore. It just comes at the price that you need a full reboot for something that usually needs a session relogin at worst.