Swift 5.7, the latest update of Apple’s Swift programming language, is now available, with usability improvements, a smaller and faster standard library, faster build and launch times, and a new generics implementation.
Unveiled September 12, Swift 5.7 offers language and standard library enhancements including a new shorthand syntax for common boilerplate code, including if let statements and multi-statement, closure-type annotations. The language’s developers also lifted long-standing language limitations to make generic programming more seamless, and they enhanced data race safety with new annotations and opt-in diagnostics. New language support and APIs are offered for string processing. Yet another language improvement is actor isolation in distributed environments.
