what were the swiftui updates at wwdc 2023

At WWDC 2023, several updates were introduced for SwiftUI. Here are some of the key highlights:

1. Custom Containers: SwiftUI introduced new APIs that allow developers to create custom container views, similar to built-in containers like List and Picker. This includes the ability to mix static and dynamic content and support sections.

2. Graphics Capabilities: New graphics capabilities were added, such as a mix modifier on colors to blend them and extended custom shader features to precompile shaders, avoiding frame drops.

3. Scrolling Enhancements: There are new APIs for fine-grained control over scroll views, including the ability to react to changes in content offsets and sizes, and detect when a view's visibility changes due to scrolling.

4. Interoperability: Improvements were made to enhance interoperability with UIKit and AppKit, including gesture recognition and animation integration.

5. Performance Improvements: Significant performance improvements were made, especially for lists and scrolling, with lists loading and updating much faster.

6. Web Content Integration: New web APIs were introduced, allowing apps to embed web content more easily with a new declarative WebView component designed for SwiftUI.

7. Rich Text Editing and 3D Charts: New capabilities for rich text editing and support for 3D charts were added.

8. Xcode Previews: Xcode Previews received a new dynamic linking architecture, making the workflow smoother and more productive.

For more detailed information, you can refer to the session What’s new in SwiftUI from WWDC 2024.