What’s new in Apple’s Swift 5

Swift 5 a breakthrough in the development of the language. It comes with ABI stability, the Swift runtime is now included in present and forthcoming variants of Apple’s platform operating systems: iOS, macOS, watchOS, and tvOS. Swift 5 also came with new abilities that are building blocks for future variants like a reimplementation of String, implementation of exclusive access to memory during runtime, new data types, and support for dynamically callable types.

Apple’s Swift 5  comes with the below updates:

Stable ABI and Binary Compatibility

The application binary interface(ABI) is now declared stable for Swift 5 on all Apple platforms. As a result, the Swift libraries are now incorporated into every iOS, macOS, watchOS, and tvOS release going ahead. Your applications will be easier to build and smaller because they won’t have to include those libraries.

Standard Library Updates

Swift 5 came with below standard library updates:

  • String redefined with UTF-8 encoding which can often result in faster code
  • Enhanced support for raw text in string literals
  • Now, the Standard Library contains Result and SIMD vector types
  • Improvements to String interpolation, adding more flexibility to construct text from data
  • Performance enhancements to Dictionary and Set

Language and Compiler Updates

This swift update defaults to enforcing exclusive access to memory for both release and debug builds. And it also supports dynamically callable types that help improve interoperability with dynamic languages such as JavaScript, Python, and Ruby.

Package Manager Updates

Swift 5 came with several new features in Swift Package Manager, which includes dependency mirroring, ability to generate code coverage data, target-specific build settings, and the customized deployment targets. Additionally, the swift run command now includes the ability to import libraries in a read-event-print loop (REPL) without needing to build an executable.

Do you wish to upgrade your iOS application with Swift 5, do get in touch with us and we would be happy to help you.