Swift 6.3, the latest release of the Apple-driven language for multiple platforms, offers more flexible C interoperability and improvements for cross-platform build tools. The official SDK for Android mobile application development also is featured.
Announced March 24, Swift 6.3 can be accessed at swift.org. For C interoperability, Version 6.3 debuts the @c attribute for exposing Swift functions and enums to C code in a project. Annotating a function or enum with @c prompts Swift to include a corresponding declaration in the generated C header that can be included in C/C++ files.
Also, Swift 6.3 has a preview of the Swift Build system integrated into Swift Package Manager. This preview brings a unified build engine across all supported platforms for a more consistent cross-platform development experience. Improvements to Swift Package Manager in Version 6.3 include a prebuilt Swift syntax for shared macro libraries, flexible inherited documentation, and discoverable package traits.
