What new in swiftdata
Generated on 8/8/2024
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What's New in SwiftData
SwiftData has introduced several new features and improvements to enhance data modeling and persistence across Apple's platforms. Here are the key updates:
-
Schema Macro:
- A new schema macro helps avoid duplicate models.
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Model Containers:
- New ways to set up and configure model containers.
-
Query Optimization:
- Complex filters and a new macro to improve performance.
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Index and Unique:
- The
indexmacro makes queries more efficient by indicating which properties are commonly queried together. - The
uniquemacro ensures that a set of properties can have no duplicate entries.
- The
-
Custom Data Stores:
- SwiftData now supports custom data stores, allowing you to use alternative backends like SQLite, remote web services, or JSON files.
- The new datastore protocol enables support for any persistence backend.
-
History API:
- Access to the history of changes in a datastore, useful for tracking local changes that need to be synced to a remote web service.
-
Previewable Macro:
- Works great with SwiftData, making it easier to work with your queries while iterating on views.
For a detailed overview, you can watch the session What’s new in SwiftData.
Relevant Sessions
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.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
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.
A Swift Tour: Explore Swift’s features and design
Learn the essential features and design philosophy of the Swift programming language. We’ll explore how to model data, handle errors, use protocols, write concurrent code, and more while building up a Swift package that has a library, an HTTP server, and a command line client. Whether you’re just beginning your Swift journey or have been with us from the start, this talk will help you get the most out of the language.
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.