What is new in SwiftData?
Generated on 8/3/2024
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SwiftData has introduced several new features and improvements. Here are the key updates:
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Custom Data Stores: SwiftData now supports custom data stores, allowing you to use alternative backends like SQLite, remote web services, or even collections of JSON files. This flexibility enables you to use SwiftData's API with various storage backends (Platforms State of the Union).
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Schema Macro: A new schema macro helps avoid duplicate models, making it easier to set up and configure model containers (What’s new in SwiftData).
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Index and Unique Macros: The
indexmacro makes queries more efficient by indicating which properties are commonly queried together, while theuniquemacro ensures that a set of properties has no duplicate entries (Platforms State of the Union). -
History API: SwiftData now provides access to the history of changes in a datastore, making it easy to inspect recent changes. This is particularly useful for tracking local changes that need to be synced to a remote web service (Platforms State of the Union).
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Previewable Macro: The new
previewablemacro works well with SwiftData, making it easier to work with queries while iterating on views (Platforms State of the Union). -
Expression Macro: A new macro to improve performance by optimizing queries with complex filters (What’s new in SwiftData).
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Model Container Configuration: New ways to set up and configure model containers have been introduced, enhancing the flexibility and efficiency of data modeling (What’s new in SwiftData).
For a detailed overview, you can watch the session What’s new in SwiftData.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
What’s new in SwiftData
SwiftData makes it easy to add persistence to your app with its expressive, declarative API. Learn about refinements to SwiftData, including compound uniqueness constraints, faster queries with #Index, queries in Xcode previews, and rich predicate expressions. Join us to explore how you can use all of these features to express richer models and improve performance in your app. To discover how to build a custom data store or use the history API in SwiftData, watch “Create a custom data store with SwiftData” and “Track model changes with SwiftData history”.
Track model changes with SwiftData history
Reveal the history of your model’s changes with SwiftData! Use the history API to understand when data store changes occurred, and learn how to use this information to build features like remote server sync and out-of-process change handing in your app. We’ll also cover how you can build support for the history API into a custom data store.
Create a custom data store with SwiftData
Combine the power of SwiftData’s expressive, declarative modeling API with your own persistence backend. Learn how to build a custom data store and explore how to progressively add persistence features in your app. To get the most out of this session, watch “Meet SwiftData” and “Model your schema with SwiftData” from WWDC23.