With Xcode 9, it’s possible to mix and match Swift 3 and 4 libraries together. In the build settings for the project you set the version of Swift to use by configuring the SWIFT_VERSION setting. You’re able to override the project setting at the target level, thereby

Today we're proud to announce the launch of All the Rings, a companion to the built-in activity app that helps you stay focused, motivated, and most importantly, close all the rings, every day. If you're looking for an enhanced activity experience,