whats new in swift 6
Generated on 8/8/2024
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Swift 6 introduces several significant improvements and new features aimed at enhancing portability, performance, and the overall developer experience. Here are some of the key updates:
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Data Race Safety: Swift 6 introduces a new language mode that provides data race safety guarantees, helping developers write correct concurrent programs. This mode is opt-in and can be adopted module by module, allowing for incremental migration (Platforms State of the Union).
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Non-Copyable Types: Swift 6 introduces non-copyable types, which can help reduce unnecessary copying of data and improve performance (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 (What’s new in Swift).
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Concurrency Improvements: There are significant improvements to concurrency, including better data race checking and the ability to pass non-sendable values across active isolation boundaries (What’s new in Swift).
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Swift Testing: An all-new testing framework named Swift Testing has been introduced, which features expressive APIs to simplify writing tests (Platforms State of the Union).
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GitHub Migration: The Swift project will be moving to a new organization on GitHub (swiftlang), which will include the Swift Compiler foundation and many more Swift ecosystem packages (What’s new in Swift).
For a detailed overview of these updates, you can watch the session What’s new in Swift.
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 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.
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.
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.