Starting with Xcode 26, there’s a new way to observe properties of your models. In the past, we had to use the function to access properties and receive changes…

Donny Wals's blog offers insights into iOS development, Swift programming, and software engineering best practices. Readers can explore articles covering topics such as SwiftUI, Combine framework, and iOS app architecture patterns. Additionally, they can learn about iOS app testing, debugging techniques, and publishing apps on the App Store.

Donny Wals

Swift 6.2 introduces the Observations framework as a new way to observe properties of @Observable models outside of SwiftUI views. This replaces the clunky withObservationTracking function with an AsyncSequence-based approach that provides cleaner syntax and 'did set' semantics. The framework allows developers to create observation sequences that emit values when model properties change, but requires careful memory management to avoid retain cycles and may miss values if consumption is slower than production.

Using the Observations framework to observe model properties – Donny Wals