Major new Apple Intelligence features limited to the newest iPhones & Macs

Apple says that most new Apple Intelligence features will work on the same devices as before, but an unclear number will require the latest iPhones, iPads and Macs.
Apple says the most powerful on-device AI models will not be on all devices - image credit: Apple
The most significant part of Apple's WWDC announcement was the extensive array of features coming to Apple Intelligence and the new Siri AI. It's at last the natural language and contextual Siri we've been promised, plus major new featur