What are the changes in swiftdata in ?

Asked on 2026-06-18

•@wwdc26

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In SwiftData, the new features highlighted are:

Sectioned fetches with Query
Custom type storage using Codable attributes for types from other frameworks
ResultsObserver to observe query results outside SwiftUI views
HistoryObserver to observe and react to persistent history changes in your store

If you want, I can also summarize these by chapter from What’s new in SwiftData.

What’s new in SwiftData

Discover the latest enhancements to SwiftData. We’ll show you how to persist custom and third-party types using Codable, and group fetched data into sections in your SwiftUI app. We’ll also explore how to observe data store changes anywhere else using ModelResultsObserver and HistoryObserver, giving you the flexibility to drive powerful state objects, integrate with delegate-based architectures, and react precisely to model updates.

Code-along: Add persistence with SwiftData

Experience SwiftData in action as we add persistence to an existing app. We’ll show you how to define your data models and seamlessly integrate persistent data with SwiftUI. You’ll also learn foundational skills for managing your app’s state using this expressive, declarative API.

What’s new in Swift

Join us for an update on Swift. Discover the latest language advancements, including updates for everyday ergonomics, improved concurrency, and safer high-performance code. Explore workflow and language interoperability improvements and updates in embedded Swift.