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Flutter 3.47 Highlights: Standalone UI, Impeller, iOS Updates

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Flutter 3.47 delivers a major leap with Flutter 3.47 bringing Impeller to desktop by default and preparing pipelines for Xcode 27, iOS 15, and macOS 12.

A key milestone is the 1.0 release of the material_ui and cupertino_ui packages, decoupling design systems from the core SDK. Developers can now opt‑in to these standalone libraries, gaining independent weekly updates and faster contribution cycles.

Performance and tooling see a boost: Flutter Widget Previews graduate to stable, build times improve, and the community contributes significant optimizations. Apple’s new SDKs require UIScene lifecycle adoption, with Swift Package Manager migration now the default for most plugins.

Web developers can experiment with Web Assembly by adding the "--wasm" flag to release builds. These changes collectively position Flutter to meet upcoming Apple releases and provide a smoother, faster, and more modular developer experience.