"…and when other devices make the update it will get it from this cache saving a LOT of download time."
So the other devices obviously must be of the same ilk: computer or iDevice, and must be on the same network or just any network? And this would be faster than a high speed Ethernet connection to the download?
Enquiring minds want to know.
On a Mac since 1984. Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.