swift 6 concurrency
Generated on 8/12/2024
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Swift 6 introduces significant improvements in concurrency, focusing on data race safety. The new Swift 6 language mode enables compile-time data race safety, which helps catch concurrency issues early in the development process. This mode is opt-in, allowing developers to adopt it when ready and migrate incrementally, module by module.
Key features of Swift 6 concurrency include:
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Data Race Safety: Swift 6 achieves data race safety by default, turning potential data race issues into compile-time errors. This enhances app security and reduces debugging time.
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Concurrency Features: Swift 6 builds on previous concurrency features like async/await, tasks, and actors, providing a robust framework for writing concurrent code.
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Main Actor Isolation: Many protocols and delegates, especially those related to UI frameworks, are designed to operate on the main actor. Swift 6 simplifies this by reducing the need for explicit main actor annotations.
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Incremental Adoption: Developers can migrate to Swift 6 incrementally, without waiting for all dependencies to update. This flexibility aids in a smoother transition to the new concurrency model.
For more detailed guidance on migrating to Swift 6 and adopting its concurrency features, you can refer to the session Migrate your app to Swift 6 (08:53).
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.
A Swift Tour: Explore Swift’s features and design
Learn the essential features and design philosophy of the Swift programming language. We’ll explore how to model data, handle errors, use protocols, write concurrent code, and more while building up a Swift package that has a library, an HTTP server, and a command line client. Whether you’re just beginning your Swift journey or have been with us from the start, this talk will help you get the most out of the language.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
Migrate your app to Swift 6
Experience Swift 6 migration in action as we update an existing sample app. Learn how to migrate incrementally, module by module, and how the compiler helps you identify code that’s at risk of data races. Discover different techniques for ensuring clear isolation boundaries and eliminating concurrent access to shared mutable state.