A couple years ago, Apple unleashed an IOS update which made the news because network operators reported serious congestion on their networks as everyone and their uncle tried to download the gig+ package at 11:00 PDT. Was the problem solved simply by Apple staggering the announcement of downloads? or were there distribution network changes also made to reduce the load? In Canada, during net neutralirty hearings, it was revealed that cellular carriers zero rated over the air updates. I know my iPhone gets updates without me asking for them, only getting a "update ready to install" while on a long cycling ride (aka: must have used cellular data). Does anyone know whether this is pushed by Apple who has gotten the OK form individual carriers, or is it pushed by carriers (with Apple's OK) in a low priorioty stream that doesn't cause congestion on cellular network? (carriers delivering content in "push mode" would change their role).