are scrolling elements on macos' apple's native apps built on swiftUI? Does that mean they would get a performance improvement with the "idle prefetch" upgrade coming to macos?
Asked on 06/11/2025
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Yes, scrolling elements in macOS native apps built with SwiftUI would benefit from the "idle prefetch" upgrade. According to the Platforms State of the Union, SwiftUI has introduced idle prefetch to macOS, which is expected to significantly enhance performance by reducing the chance of dropping frames during scrolling. This improvement is part of a broader set of optimizations aimed at making SwiftUI faster across all platforms, particularly for lists and tables with large amounts of data.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
What’s new in SwiftUI
Learn what’s new in SwiftUI to build great apps for any Apple platform. We’ll explore how to give your app a brand new look and feel with Liquid Glass. Discover how to boost performance with framework enhancements and new instruments, and integrate advanced capabilities like web content and rich text editing. We’ll also show you how SwiftUI is expanding to more places, including laying out views in three dimensions.
What’s new in SwiftUI
Learn how you can use SwiftUI to build great apps for any Apple platform. Explore a fresh new look and feel for tabs and documents on iPadOS. Improve your window management with new windowing APIs, and gain more control over immersive spaces and volumes in your visionOS apps. We’ll also take you through other exciting refinements that help you make expressive charts, customize and layout text, and so much more.