A new beta of Xcode 9 is now available, and includes Swift 4 and SDKs used to build apps with the latest innovations and powerful capabilities in macOS, iOS, watchOS, and tvOS. Xcode 9 beta 6 (9M214v)macOS High Sierra 10.13 beta 7 (17A352a)iOS 11 beta 7 (15A5362a)tvOS 11 beta 7 (15J5369a)View all downloads.

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