Summarize the "Migrate your app to Swift 6" sessions
Generated on 11/1/2024
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The "Migrate your app to Swift 6" session at WWDC 2024 provides a comprehensive guide on transitioning your application to Swift 6. The session is led by Ben from the Swift team, who walks through enabling the Swift 6 language mode in an existing application. Key highlights include:
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Data Race Safety: Swift 6 introduces data race safety guarantees, which help in writing correct concurrent programs. The session emphasizes the importance of enabling Swift 6 mode to enforce full data isolation and prevent data races.
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Migration Process: The session outlines a step-by-step process for migrating each target in your code. This involves enabling complete concurrency checking, resolving warnings, and then enabling Swift 6 mode to lock in changes and prevent regressions.
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Compiler Diagnostics: The new Swift compiler acts like a pair programmer, guiding developers by pointing out potential bugs and helping structure the migration process.
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Concurrency Features: The session also covers adopting concurrency features and ensuring that changes do not introduce new data races, especially when integrating more concurrency to improve app responsiveness and performance.
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Practical Example: A practical example is provided using a simple app that tracks coffee consumption, demonstrating how to enable Swift's data isolation step by step.
For more detailed guidance, you can refer to the session chapters such as "Swift 6 and data-race safety" and "Swift 6 migration in practice". You can start watching the session from the Swift 6 and data-race safety (03:20) chapter.
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.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
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.