As with iPhone and Mac, the big draw here is the reinvented Siri, which is now much more capable. It’s context-aware, understands what’s on your screen, and can search through your data via on-device processing to find key data from your contacts, messages, Mail, and more. There are also new child safety features like allowed apps, and a laundry list of tweaks under the hood to things like memory usage, display rendering, and more granularity over the Liquid Glass interface, which debuted last year.