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See how existing apps look on iPhone Duo when built before iOS 27, with the iOS 27 SDK, and with the iOS 27.1 SDK.

Explore iPhone Duo's different positions, control placement, fold-aware layouts, and Split View through examples from Apple's design talk.

The any keyword makes the cost of an existential type visible.

A brief summary of all six iPhone Duo Tech Talks to help you choose which videos to watch when updating your app.

Map, PhotosPicker, and WebView are not in SwiftUI.

iOS 26 adds a real WebView to SwiftUI, plus a WebPage class that gives you the title, the loading progress, and control over navigation.

DecodingError and EncodingError now print a clean one-line summary with the coding path, instead of the wall of text we used to skim past.