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 2 (9M137d)macOS 10.13 beta 2 (17A291j)iOS 11 beta 2 (15A5304i)watchOS 4 beta 2 (15R5307f)tvOS 11 beta 2 (15J5310e)View all downloads.

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