This is a legacy document for Xcode 8 and migrating from Swift 2. Xcode 8.0 comes with a Swift Migrator tool that helps you migrate your project to Swift 3, or update it to work with Swift 2.3 and the new SDKs. Pre-Migration Preparation To get the most effective migration, make sure that the project that you intend to migrate builds successfully, and all its tests pass, when using Xcode 7.3[.1]. A
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