FEATURE
The "Launch at login" toggle now takes effect instantly without a reboot
When you toggled "Launch at login" from the menu, the system previously just jotted it down in a config file and waited for your next reboot to actually do anything about it; and turning it off left a zombie background process running. Now, the moment you flip the switch, the system instantly taps macOS on the shoulder to say "start doing this now" or "stop right now", with zero reboots required. It's like telling the building manager to cancel your newspaper delivery: they used to just write it in tomorrow's log while still delivering today's paper, but now they immediately radio the delivery person to stop.