> Swift Concurrency Migration Checklist
// A structured checklist for migrating iOS codebases from completion handlers and DispatchQueue to async/await and actors — covering audit, adoption, Sendability, and common pitfalls.
SwiftConcurrencyiOS
Migrating to Swift concurrency is not an all-or-nothing change. The language is designed to interoperate with completion handlers and DispatchQueue, so you can migrate incrementally — one subsystem at a time — without rewriting the entire codebase upfront.
The audit step at the top is worth doing properly before writing any new code. Understanding which parts of your codebase actually have concurrency concerns versus which are just using DispatchQueue out of habit will tell you where actor adoption genuinely helps and where it would add unnecessary complexity.
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Audit Your Codebase First
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Bridging Existing Async APIs
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Actor Adoption
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Sendability
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Task Management
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