When should I migrate to Swift 6?
Generated on 7/31/2024
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You should consider migrating to Swift 6 when you are ready to tackle data races in your code. The new Swift 6 language mode introduces compile-time data race safety, which may involve changes to your code. Here are some key points to help you decide when to migrate:
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Incremental Migration: You can migrate to Swift 6 incrementally, one module at a time. This means you don't need to wait for all your dependencies to migrate before you start (Platforms State of the Union).
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Compiler Diagnostics: The Swift 6 compiler diagnostics will guide you towards the places in your code that need fixing, helping you methodically eliminate data races (Migrate your app to Swift 6).
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Concurrency Improvements: If you are actively working on integrating more concurrency to improve responsiveness and performance, adopting Swift 6 mode can ensure that those changes don't risk introducing new data races (Migrate your app to Swift 6).
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Public Swift Packages: If you maintain a public Swift package, adopting Swift 6 as soon as possible can help your users who want to migrate their codebases (Migrate your app to Swift 6).
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Community Contribution: Every module that migrates to Swift 6 contributes to the community-wide transition to bring data race safety to the Swift software ecosystem. Updating your open-source packages to Swift 6 can help the broader community (Platforms State of the Union).
For a detailed step-by-step guide on how to migrate, you can refer to the session Migrate your app to Swift 6.
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.
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.
Platforms State of the Union
Discover the newest advancements on Apple platforms.