What are the new features in Swift 6
Generated on 8/3/2024
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Swift 6 introduces several new features aimed at improving portability, performance, and the overall developer experience. Here are some of the key new features:
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Swift 6 Language Mode: This new mode provides data race safety guarantees, helping developers write correct concurrent programs. It is opt-in, allowing developers to adopt it module by module (What’s new in Swift).
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Non-Copyable Types: Swift 6 introduces non-copyable types, which means that all Swift types, whether value types or reference types, are copyable by default, but you can now define types that cannot be copied (What’s new in Swift).
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Embedded Swift: A new language subset called Embedded Swift is introduced, which can run on highly constrained systems like operating system kernels and microcontrollers (Platforms State of the Union).
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Concurrency Improvements: Significant improvements have been made to concurrency, including better data race checking and complete concurrency checking (What’s new in Swift).
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Swift Testing: An all-new testing framework named Swift Testing has been introduced, which has expressive APIs that make it simple to write tests (Platforms State of the Union).
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C++ Interoperability: Enhancements have been made to improve interoperability with C++ (What’s new in Swift).
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Typed Throws: This feature allows for more precise error handling by specifying the types of errors that can be thrown (What’s new in Swift).
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Low-Level Synchronization Primitives: New primitives have been introduced to help with low-level synchronization (What’s new in Swift).
For a detailed overview, you can watch the session What’s new in Swift.
Platforms State of the Union 5-Minute Recap
Watch a quick recap of the newest advancements on Apple platforms.
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.
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.
What’s new in SwiftUI
Learn how you can use SwiftUI to build great apps for any Apple platform. Explore a fresh new look and feel for tabs and documents on iPadOS. Improve your window management with new windowing APIs, and gain more control over immersive spaces and volumes in your visionOS apps. We’ll also take you through other exciting refinements that help you make expressive charts, customize and layout text, and so much more.