While it largely succeeded, one hindrance was the underlying MacOS and iOS APIs, which weren’t nearly as intuitive. Enter SwiftUI, which is Apple’s newest UI framework.

A group of Apple researchers took a very interesting approach to get an AI to teach itself how to build good interfaces in SwiftUI.

Today, Apple released the fourth developer beta for macOS 10.15 Catalina. It has a couple big issues, breaking SwiftUI previews with Xcode 11 beta 3 and there's no build for the 2019 MacBook Air.

On macOS Monterey, SwiftUI simplifies building apps with multicolumn tables. Apple is also making it easier for custom controls to provide accessibility support.