WWDC25: Embracing Swift concurrency | Apple

Video Description

Join us to learn the core Swift concurrency concepts. Concurrency helps you improve app responsiveness and performance, and Swift is designed to make asynchronous and concurrent code easier to write correctly. We’ll cover the steps you need to take an app through from single-threaded to concurrent. We’ll also help you determine how and when to make the best use of Swift concurrency features – whether it’s making your code more asynchronous, moving it to the background, or sharing data across concurrent tasks. Explore related documentation, sample code, and more: Swift Migration Guide: https://www.swift.org/migration/documentation/migrationguide/ The Swift Programming Language: Concurrency: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/concurrency/ Code-along: Elevate an app with Swift concurrency: https://developer.apple.com/videos/play/wwdc2025/270 Beyond the basics of structured concurrency: https://developer.apple.com/videos/play/wwdc2023/10170 00:00 - Introduction 03:17 - Single-threaded code 06:00 - Asynchronous tasks 07:24 - Interleaving 10:22 - Introducing concurrency 11:07 - Concurrent functions 13:10 - Nonisolated code 14:13 - Concurrent thread pool 14:58 - Sharing data 15:49 - Value types 17:16 - Actor-isolated types 18:30 - Classes 23:18 - Actors 26:12 - Wrap-up More Apple Developer resources: Video sessions: https://apple.co/VideoSessions Documentation: https://apple.co/DeveloperDocs Forums: https://apple.co/DeveloperForums App: https://apple.co/DeveloperApp