"SwiftUI Fundamentals" book update: refreshed for iOS 26 and the Liquid Glass design
I'm happy to share that I've updated SwiftUI Fundamentals for iOS 26, bringing refreshed visuals and refinements throughout the book. This new edition aligns with the Liquid Glass design introduced across Apple platforms, giving every example and screenshot an updated look that matches the latest system appearance.
While the visual style has evolved, the fundamental workings of the framework remain the same. The core principles of view composition, state flow, and layout behavior continue to define how SwiftUI operates. This update focuses on clarity and accuracy rather than new concepts, keeping the material fully relevant for developers building with SwiftUI in 2025.
I've verified all examples against the current SwiftUI APIs and refined explanations where needed to reflect minor behavioral changes on iOS 26.
If you already own the book, you can download the updated edition here: Download the October 2025 Edition.
If you haven't checked out the book yet and want to deepen your understanding of SwiftUI, this is a great place to start. I wrote "SwiftUI Fundamentals" to help developers build a clear mental model of how SwiftUI works, from layout and state flow to the principles that guide its design, drawing on my experience contributing to the framework at Apple.
You can learn more or get your copy here: SwiftUI Fundamentals.
Deepen your understanding of SwiftUI!$35
The essential guide to SwiftUI core concepts and APIs
SwiftUI Fundamentals
- Explore the key APIs and design patterns that form the foundation of SwiftUI
- Develop a deep, practical understanding of how SwiftUI works under the hood
- Learn from a former Apple engineer who worked on widely used SwiftUI APIs
Deepen your understanding of SwiftUI!
The essential guide to SwiftUI core concepts and APIs
SwiftUI Fundamentals