iOS 26 introduces Liquid Glass design that changes how sheets look and behave in SwiftUI. Partial height sheets now float above the interface with rounded corners and a Liquid Glass background by default — no need for custom presentationBackground() modifiers. Sheets can also morph from toolbar buttons using matchedTransitionSource() on the ToolbarItem and a zoom navigation transition on the sheet content, linked via a shared namespace and sourceID. The view must be inside a NavigationStack or NavigationSplitView for the morphing transition to work correctly.
2 Impressions