Swift is Apple’s new programming language that was introduced in June 2014. It will eventually replace Apple’s ancient Objective-C programming language for iOS native app development (and native Mac OS X applications).
Swift is a modern language that borrows the best from Java, C# and Python. Apple has optimized the Swift compiler to work with it;s core native frameowrk libraries; Cocoa and Cocoa Touch. Swift’s main features / benefits are: