Swift 3.0 is now available as part of the Xcode 8 beta. ... Here are some new features implemented in Swift 3.0 documented in the revision history: All function parameters have labels by default.

Whats New in Xcode 6. I love reading changelogs and Xcode updates are no exception. I am fascianted by Apple’s approach to Xcode improvements because they rarely add a feature without reason.

Calling it "fast, modern, safe and interactive," Apple on Monday unveiled Swift, a brand new Xcode programming language that it says is superior to Objective-C.