Xcode 8.3 is now available, and includes Swift 3 and SDKs that you can use to build and test apps for the latest release of macOS, iOS, watchOS, and tvOS.macOS Sierra 10.12.4 (16E195)iOS 10.3 (14E277)watchOS 3.2 (14V249)tvOS 10.2 (14W265)Xcode 8.3 (8E162)View all downloads.

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