Whatʼs new in Swift 4
An Xcode playground showcasing the new features in Swift 4.0. As seen in the Whatʼs New in Swift session at WWDC 2017.
Written by Ole Begemann, May 2017.
The playground requires Swift 4. Xcode 9 includes Swift 4 by default (download Xcode 9 beta from developer.apple.com). You can also run it in Xcode 8.3, but you need to install the latest Swift 4.0 snapshot from swift.org (donʼt worry, itʼs easy).