what's new in SwiftUI for iOS 16

In iOS 16, SwiftUI introduced several new features and improvements. Here are some of the highlights:

Graphics Capabilities: SwiftUI now allows you to mix colors beautifully with a new mix modifier on color. This feature lets you blend colors by a given amount.
Custom Shader Feature: The ability to precompile shaders before their first use has been added, which helps avoid frame drops caused by lazy shader compilation.
Scroll View Enhancements: There are new APIs for fine-grained control over scroll views. You can now react to changes in content, offsets, and content size with onScrollGeometryChange. Additionally, you can detect when a view's visibility changes due to scrolling, enabling experiences like auto-playing videos.
Swift 6 Language Mode: This new mode enables compile-time data race safety. SwiftUI has improved its APIs to make it easier to adopt this new language mode.
Interoperability Improvements: Significant improvements have been made to the integration of gestures and animations. You can now use any built-in or custom UI gesture recognizer in your SwiftUI view hierarchy, even on views not directly backed by UIKit.

For more detailed information, you can refer to the session What’s new in SwiftUI (16:18) which covers scrolling enhancements and other new features.