whats new in swift 6 vs 5
Generated on 8/12/2024
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Swift 6 introduces several new features and improvements over Swift 5, focusing on enhancing portability, performance, and the overall developer experience. Here are some of the key differences and new features in Swift 6 compared to Swift 5:
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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 feature 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 are a new feature that allows developers to define types that cannot be copied, enhancing memory management and 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 (Platforms State of the Union).
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Concurrency Improvements: Swift 6 continues to improve its concurrency model, building on the async/await and actor model introduced in previous versions (Platforms State of the Union).
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Swift Testing Framework: A new testing framework named Swift Testing is introduced, providing expressive APIs to simplify writing tests (Platforms State of the Union).
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C++ Interoperability: Swift 6 enhances interoperability with C++, making it easier to integrate Swift with existing C++ codebases (What’s new in Swift).
These updates make Swift 6 a more robust and versatile language, especially for concurrent programming and systems with constrained resources.
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.
Platforms State of the Union
Discover the newest advancements on Apple platforms.
Platforms State of the Union 5-Minute Recap
Watch a quick recap of 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.