Beijing Time June 9, 2015 One o'clock in the morning, San Francisco, WWDC 2015 Apple Conference, earlier know that iOS9 will pay more attention to system optimization, it seems to be so, but the most surprising is that Swift actually announced open source, then I was shocked, However, the swift language open source does not mean that the iOS SDK open source, in other words, the development of iOS applications or need on the Apple computer, said the Apple Computer, the launch also released a new system OS X EI Capitan, or is looking forward to the system in the optimization of the great improvement. The other is Apple Watch's new system, watch OS2, which earlier relied on the iphone for Apple Watch, but now watch OS2 will allow Apple Watch to separate the app from the phone, adding native WatchKit. Another important point is that Xcode7 includes a Swift2.0 and a new set of SDKs, which are great for iOS and watch OS2 without a developer program when developing an app.
There is a piece of code in the official Swift2.0 document:
Well, I admit it's a bit like Java, I think Swift is more like a combination of C + + and Python, but now that Swift is becoming more and more flexible, I think that's one of the reasons why Swift is open source, not only to get more people to learn the language, It also adds infinite possibilities to the future of the language. Well, the notes are written here, and finally, Swift is really the trend, at least for now.
WWDC 2015 Apple Release Notes