Swift 6.2 Approachable Concurrency

This skill provides domain-specific guidance for adopting Swift 6.2's 'Approachable Concurrency' model, which simplifies development by keeping async functions on the calling actor by default. It helps developers migrate from Swift 5.x or early 6.x versions, resolve complex data-race safety compiler errors, and correctly implement MainActor-isolated architectures. By leveraging patterns like isolated protocol conformances and the @concurrent attribute for explicit background offloading, it ensures high-performance iOS and macOS applications remain thread-safe without excessive boilerplate.

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