When building iOS apps that support multiple platform versions, developers often write convenience wrappers to bridge API differences. This post demonstrates how to use Swift's `@available` annotation with `deprecated` and `obsoleted` parameters to mark such wrappers as dead code once the minimum deployment target is bumped. Using a SwiftUI toolbar label style as a concrete example, the technique shows how to get compiler warnings (deprecated) or errors (obsoleted) automatically, keeping the codebase clean and preventing technical debt accumulation.
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