What’s new in the latest swift version

The latest version of Swift, Swift 6, introduces several significant updates and new features:

1. Data Race Safety: Swift 6 introduces a new language mode that provides data race safety guarantees, helping developers write correct concurrent programs. This is a major enhancement to the language's safety features.

2. Embedded Swift: A new language subset called Embedded Swift is introduced, which can run on highly constrained systems, such as operating system kernels and microcontrollers.

3. Non-Copyable Types: Swift 6 introduces non-copyable types. Previously, all Swift types, whether value types or reference types, were copyable by default. This new feature allows for more efficient memory management and performance improvements.

4. Concurrency Improvements: There are significant improvements to concurrency, including complete concurrency checking and enhancements to data race checking. Swift 6 can recognize safe scenarios for passing non-sendable values across isolation boundaries.

5. Swift Testing: An all-new testing framework named Swift Testing has been introduced. It features expressive APIs that simplify writing tests and is designed to be easy to use and integrate into Swift projects.

6. C++ Interoperability: Swift 6 continues to improve interoperability with C++, making it easier to integrate Swift with existing C++ codebases.

7. Typed Throws: This feature allows for more precise error handling by specifying the types of errors that can be thrown by functions.

For more detailed information, you can refer to the session "What’s new in Swift" starting at 17:03.