Get started with Swift concurrency

Swift offers built-in support for asynchronous and concurrent code to help you optimize parallelization of tasks — especially on machines with more cores. With Swift concurrency, you can ensure small tasks that require UI updates can be prioritized while longer tasks continue in the background. Discover how you can started with Swift concurrency, debug your tasks and actors, explore the latest tools, and much more. We’ll also show you how you can optimize the execution of asynchronous and parallel tasks when using Swift concurrency without interacting directly with threads.

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Meet async/await in Swift

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Discover concurrency in SwiftUI

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Use async/await with URLSession

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Meet AsyncSequence

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Meet distributed actors in Swift

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Visualize and optimize Swift concurrency

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Meet Swift Async Algorithms

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The Swift Programming Language: Concurrency

Best Practices

Swift concurrency: Update a sample app

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Swift concurrency: Behind the scenes

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Protect mutable state with Swift actors

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Explore structured concurrency in Swift

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Eliminate data races using Swift Concurrency

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Updating an App to Use Swift Concurrency