![]() “We asked ourselves, if some things were not already in Swift, would we add them? Often the answer is no.” – Chris Lattner Apple encourages developers to update their code and get ready for the Fall release. Of course, to help the migration of your code easier, Xcode 8 includes a handy Swift Migrator tool. Whole module optimization is on by default and the compiler now caches as much as possible. Highlights include: improved syntax, type systems, improved implicitly unwrapped optionals, changes in the standard library, numerics and dictionaries using strings. In addition, many changes have taken place in the semantics of Swift. ![]() The session highlights the new naming conventions, reduced redundancies and the benefits of using structs over strings in enumerations. The bulk of the session covers what’s new in Swift 3, with the major change being the “Swift-ification” of Apple APIs. The aim is to make Swift open and transparent, develop it under a strict code of conduct and release it with a permissive license. Swift 3.0 is the first release of the Swift Evolution open source project. The session begins by looking at the state of Swift and its open source development. If you’ve been following the Swift Evolution project closely, you can skip this session as you already know what’s coming, but if you haven’t this session is well worth watching. One change that will affect every developer is the upcoming release of Swift 3, which brings some significant changes. If you watch no other WWDC 2016 session video, this is definitely the one you want. There are many more new items covered in the Platform State of the Union than I can address in this article. Positioned as educational tool, it’s now possible to write actual code and apps on the iPad.
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