Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, Apple TV, and Apple Watch. Xcode provides developers a unified workflow for user interface design, coding, testing, and debugging. The Xcode IDE combined with the Cocoa frameworks and Swift programming language make developing apps easier and more fun than ever before.
What's New In This Version:
Xcode 7.3 includes Swift 2.2 and SDKs for iOS 9.3, watchOS 2.2, tvOS 9.2, and OS X 10.11 El Capitan.
New in Xcode 7.3:
• iOS and OS X playgrounds in Xcode are interactive and respond to user-generated events such as button clicks and iOS gestures
• Code completion offers more intelligent suggestions, including options based on the first letters of words within the API
• Devices window supports switching between multiple Apple Watch devices paired to a single iPhone
• Debugger automatically imports the frameworks needed when evaluating both Swift and Objective-C expressions
• View debugging adds additional inspector information, context menus, and Assistant editor options
• Static analyzer identifies more potential issues related to nullability and Objective-C generics
New in Swift 2.2:
• Swift toolchains downloaded from Swift.org can be easily selected in the updated Components tab in Preferences
• New #file, #line, #column, and #function expressions
• Improvements to the standard library including new removeFirst() and removeLast() methods on slice types
• Conditional build option can compile specific code blocks within the same file based on current Swift version
• New #selector expression to reference the Objective-C selector of a method
• Failable class initializers can return 'nil' before calling the superclass initializer
• Improved compile-time diagnostic messages
• Deprecations to syntax such as ++, --, and C-style for loops in preparation for the future Swift 3 release
You can download Xcode from the App Store for free.