What is new swift6?

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 highlights:

1. Data Race Safety: Swift 6 introduces a new language mode that provides compile-time data race safety guarantees, helping developers write correct concurrent programs. This mode is opt-in and can be adopted incrementally, module by module. You can learn more about this in the Platforms State of the Union session.

2. Non-Copyable Types: Swift 6 introduces non-copyable types, which are types that cannot be copied, enhancing memory management and performance. This is covered in the What’s new in Swift session.

3. Embedded Swift: A new language subset called Embedded Swift is introduced, which can run on highly constrained systems like operating system kernels and microcontrollers. This is discussed in the What’s new in Swift session.

4. Swift Testing: An all-new testing framework named Swift Testing is introduced, which has expressive APIs that make it simple to write tests. This is mentioned in the Platforms State of the Union session.

5. GitHub Organization: Swift will be moving to a new organization on GitHub, swiftlang, which will include the Swift Compiler foundation and many more Swift ecosystem packages. This is detailed in the What’s new in Swift session.

6. Concurrency Improvements: There are significant improvements to concurrency, including enhancements to data race checking and the ability to pass non-sendable values across active isolation boundaries safely. This is covered in the What’s new in Swift session.

For a detailed overview of these features and more, you can refer to the sessions mentioned above.