Apple Releases iTunes 12.3 and Xcode 7 With Swift 2

Alongside iOS 9, Apple has released iTunes 12.3 for public and Xcode 7 for developers. iTunes 12.3 adds general support for iOS 9 and OS X 10.11 El Capitan, while the Xcode 7 comes with Swift 2 and SDKs for iOS 9, OS X 10.11 El Capitan and watchOS 2.

Writing of iTunes 12.3, the software comes with a resigned interior for OS X, and iOS 9 and OS X 10.11 El Capitan support.

New in iTunes 12.3:

• Improves Apple Music accessibility with VoiceOver
• Resolves a problem that prevented reordering of songs within Up Next
• Fixes a problem where some radio stations did not appear within Recently Played
• Addresses an issue where songs you loved on iOS did not appear loved on iTunes
• Supports two-factor authentication to secure your Apple ID

On the other hand, Xcode 7 brings the long awaited Swift 2 programming language to developers, along with SDKs for iOS 9, OS X 10.11 El Capitan and watchOS 2.

New in Xcode 7:

• User interface testing uses accessibility to auto-generate tests for you and run them as part of a test suite
• Code coverage displays what parts of your code are covered (and not) by your test suite
• Interface Builder adds StackViews to simplify the construction of complex interfaces that use Auto Layout
• Game level editors add an animation design timeline with both 2D and 3D support
• Crash logs management adds support for OS X and app extensions
• Address sanitizer points out code that may crash at runtime even when you cannot reproduce yourself
• App thinning uploads all assets to the App Store so the store can then send an optimized app to your customers
• Support for watchOS 2 including project migration tool

New in Swift 2:

• Native error handling model adds a simple try / catch syntax that transparently wraps NSError
• Tests can now access both public and internal methods from external test processes
• Protocol extensions enable a natural chaining syntax for function calls
• Markdown syntax is supported in .swift file comments to add rich text in Quick Help
• Markdown comments in playgrounds render as beautiful rich text, perfect for curriculum documents
• Availability controls warn at compile time when using API that is too new for the minimum target OS
• SDKs for OS X, iOS, and watchOS have more natural interfaces when accessed from Swift
• New language syntax includes guard, defer, and repeat keywords
• Tool to convert source code to Swift 2 via menu: Edit > Convert > To Latest Swift Syntax

iTunes 12.3 and Xcode 7 both are now available on the Mac App Store for free.