Can you tell me about migrating to Swift 6?
Generated on 10/23/2024
1 search
Migrating to Swift 6 involves several key updates and improvements, particularly focusing on data race safety and concurrency. Swift 6 introduces a new language mode that provides compile-time data race safety, which is opt-in. This means you can enable it when you're ready to tackle data races in your code. The migration can be done incrementally, one module at a time, and you don't need to wait for your dependencies to migrate before you start.
The new Swift 6 language mode will diagnose concurrent access to memory across your project, helping you identify and fix potential data race issues. This is particularly useful for improving the quality of your app by catching mistakes in concurrent code at compile time. The Swift 6 compiler acts like a pair programmer, guiding you towards places in your code that need fixing.
For a practical guide on migrating your app to Swift 6, you can refer to the session Migrate your app to Swift 6 (04:40), which provides a hands-on tutorial and best practices for the migration process.
Additionally, the session What’s new in Swift (26:07) covers the Swift 6 language mode and data-race safety, offering insights into the new language features and improvements.
Relevant Sessions
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.
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.