For that matter, you could almost never reboot linux. Linus supports kernel live patching, so you can get the latest bugfixes for the current kernel version wi

For that matter, you could almost never reboot linux. Linus supports kernel live patching, so you can get the latest bugfixes for the current kernel version without a reboot. Anything else, including systemd, is upgradeable and restartable like a normal userspace component.