1999
Google engineers want to make ad-blocking (near) impossible
(stackdiary.com)
This is a most excellent place for technology news and articles.
I kinda wonder how this will play out with ads. While apple is dipping their toes in advertising I suspect their main target appstore/ios apps not the general web (where content blockers exist and can block ads).
As per restricting legacy devices I doubt websites need to implement web integrity or private acess since they can just block acess via user agent (if some one tries to spoof anyway site won't load due to outdated webkit not being able to render).
https://developer.apple.com/news/?id=huqjyh7k