It also provides a Code completion feature, Debugger, Analyzer, Navigator, alternative toolchains, etc. The Swift 2.2 version with Xcode 7.3 is used for providing improved warnings and diagnosis with respect to compiler time, updated features, and interoperability with objective-C.

with Xcode 7.3 is mainly requires a mac which should run on OS X version 10.11 or later which involves many updated supports for iOS 9.3, watchOS 2.2, OS X version, and many feature enhancements in a row. Also helps in slicing with the artwork that gets incorporated into asset allocation.

This Swift version helps in bundling all the features together and helps in app thinning in the sense lets programmers understand the usage of on demand resources, bit code with a compilation of down into 64 or 32 executables as necessary. The migration of Swift 1.2 to a version of Swift 2.1 with Xcode 7.2 has added a lot many features and enhancement to the UI interactivity and adaptability which includes features like Generics, Nullability annotation, inline results, Resources, auxiliary and many more playgrounds. Nullability can be expressed using objective: C headers which Clang allows to express all the null pointers using Objective-C api.attribute used with the objective: C can get exported using enums in Swift.as! with failed casting: To make readers easily understand the code and maintain the code involves as! the operator which makes sure that casting gets failed at run time.The language has involved lot many improved interactions with respect to Objective-C and Swift. Compiler improvement includes Stability enhancement, Better compiler diagnostics, incremental builds, and faster executables. It mainly focuses on compiler improvement and enhancement like stability and performance improvement which in turn provides a better experience for working with Swift in Xcode. Swift 1.2 is part of Xcode 6.3 beta which includes an enhanced version of swift compiler with many new features of swift languages. Web development, programming languages, Software testing & others Swift 1.2 (Xcode 6.3+, swiftlang-602.0.49.6)

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