what are some of the new developments for Swift Data

Some of the new developments for Swift Data presented at WWDC 2024 include:

1. Custom Data Stores: Swift Data 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 the use of Swift Data's API with various storage solutions (Platforms State of the Union).

2. Schema Macros: A new schema macro helps avoid duplicate models, making it easier to define and manage your data models (What’s new in SwiftData).

3. Index and Unique Macros: The addition of the index and unique macros improves query efficiency and ensures data integrity by preventing duplicate entries (Platforms State of the Union).

4. History API: Swift Data now provides access to the history of changes in a datastore, which is useful for tracking local changes that need to be synced to a remote web service (What’s new in SwiftData).

5. Model Containers: New ways to set up and configure model containers have been introduced, allowing for more tailored data management (What’s new in SwiftData).

6. Expression Macro: A new macro to improve performance by optimizing queries with complex filters (What’s new in SwiftData).

7. Previewable Macro: This macro works great with Swift Data, making it easier to work with your queries while iterating on views (Platforms State of the Union).

For a more detailed overview, you can check out the sessions:

• What’s new in SwiftData
• Create a custom data store with SwiftData