How to migrate large enterprise Xamarin apps to .NET MAUI without chaos

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Migrating large enterprise Xamarin applications to .NET MAUI presents far greater challenges than small-scale migrations, due to years of accumulated dependencies, custom renderers, native APIs, and production workflows. Developers are advised against simply swapping namespaces and fixing errors, as this approach generates an unmanageable list of issues in complex codebases. Instead, the recommended first step is building a detailed dependency and feature map, breaking the application into trackable units with individual migration statuses. Teams are also cautioned not to freeze product development during migration; new business logic should be written in a shared, framework-agnostic layer to avoid deepening reliance on Xamarin. Microsoft's Upgrade Assistant can accelerate certain transformations, but it is positioned as a tool to support the migration strategy, not replace it.

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