What new in swiftdata

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:

1. Schema Macro:

   • A new schema macro helps avoid duplicate models.

2. Model Containers:

   • New ways to set up and configure model containers.

3. Query Optimization:

   • Complex filters and a new macro to improve performance.

4. Index and Unique:

   • The index macro makes queries more efficient by indicating which properties are commonly queried together.
   • The unique macro ensures that a set of properties can have no duplicate entries.

5. 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.

6. 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.

7. 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

1. What’s new in SwiftData
2. Create a custom data store with SwiftData
3. Track model changes with SwiftData history
4. Platforms State of the Union