To follow along with this book, you’ll need the following:
A Mac running macOS Mojave (10.14.4) or later. Optionally, you can use macOS Catalina (10.15).
Xcode 11 or later. Xcode is the main development tool for iOS. You’ll need Xcode 11 or later to make use of SwiftUI. You can download the latest version of Xcode from Apple’s developer site here: apple.co/2asi58y.
Note: The code covered in this book was developed and tested with Swift 5.2, macOS Catalina and Xcode 11.5 — so even though you can work with slightly earlier versions of them, we encourage you to update to those versions to follow along the book without unexpected errors.