Swift programming language is now open source


Swift is developed in the open at Swift.org, with source code, a bug tracker, mailing lists, and regular development builds available for everyone. The broad community of developers, both inside and outside of Apple, are working together to make Swift even more amazing. Swift already has support for all Apple platforms as well as Linux, with new platforms to come. We can’t wait to see all the places where Swift can make software safer and faster, while also making programming more fun.

Swift. A modern programming language that is safe, fast, and interactive.
Swift is a powerful and intuitive programming language for iOS, OS X, tvOS, and watchOS. Writing Swift code is interactive and fun, the syntax is concise yet expressive, and apps run lightning-fast. Swift is ready for your next project — or addition into your current app because Swift code works side-by-side with Objective-C.

Introducing Swift 2

Swift has been refined from the ground up. It generates faster code across the board, both for release and debug builds. The Swift compiler is also faster, even while adding new Fix-it suggestions such as where you can use let instead of var. Comments can include Markdown syntax to add rich text and embedded images that display in Xcode’s Quick Help. A new assistant shows your Swift API in a “header-like” view. And new syntax features combined with improvements to the Cocoa frameworks and Objective-C will make your code more expressive, and even safer.