swiftdata in wwdc26

Asked on 2026-06-15

1 search

This post is brought to you by Tailscan,
the best devtool for Tailwind CSS.

Want to sponsor? We'd love to chat →

For SwiftData at WWDC 2026, the relevant session is:

What’s new in SwiftData — covers:
- Sectioning fetches in SwiftUI views
- Storing custom types with Codable attributes
- Observing query results with ResultsObserver
- Observing persistent history with HistoryObserver

There’s also a companion session:

Code-along: Add persistence with SwiftData — a practical walkthrough for adding SwiftData persistence to an existing SwiftUI app.

If you want, I can also summarize the new SwiftData features by year across WWDC 2024, 2025, and 2026.

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.