Swift 5 has been released, enabling binary compatibility for all Apple apps and libraries.

Swift 5 has been released, enabling binary compatibility for all Apple apps and libraries.

Beside ABI, Swift 5 has new Standard Library data types (including Vectors), and support for dynamically callable types (interoperability with Python & JavaScript).

https://swift.org/blog/swift-5-released/

Paul Hudson Video explaining the features: https://www.youtube.com/watch?v=_Iw4zf8gtqs