Rapid Security Response separates security from feature updates

Apple's Rapid Security Response is a game-changer in device security, as it allows users to stay up-to-date with security fixes without having to worry about changing the way their devices work. It also means that Apple can deliver security updates more quickly and efficiently, without having to wait for the next major update cycle. 

The benefits of this approach are clear. By separating security from new features, Apple is making it easier for users to stay secure, which is especially important for those who are reluctant to update their devices if they're comfortable with the current setup. This is particularly relevant for IT professionals who manage hundreds of Macs in a remote environment. Apple can deliver security updates as soon as they're ready. This could be critical in the event of a major security breach or other security threat. 

Updates without rebooting 

Another significant advantage of Apple's rapid security response is the ability to update devices without needing to reboot. This is something that not even Google has been able to do with Chromebooks, which require a reboot after every update.

https://9to5mac.com/2023/04/08/apples-separation-of-security-and-features/