SwiftUI Navigation Navigation patterns for SwiftUI apps targeting iOS 26+ with Swift 6.3. Covers push navigation, multi-column layouts, sheet presentation, tab architecture, and deep linking. Patterns are backward-compatible to iOS 17 unless noted. Contents - NavigationStack (Push Navigation) - NavigationSplitView (Multi-Column) - Sheet Presentation - Tab-Based Navigation - Deep Links - Common Mistakes - Review Checklist - References NavigationStack (Push Navigation) Use with a typed binding for programmatic push navigation. Define routes as a enum and map them with ; this keeps the path comp…