In this article, we are going to examine new features added to iOS main programming languages, the recently open sourced Swift and Objective-C.

In the first three installments of this series, we have reviewed new frameworks introduced with iOS 9 SDK, enhancements to existing frameworks, and the new Safari content blocking API. You can subscribe to receive notifications via RSS. This InfoQ article is part of the series “ IOS 9 For Developers ”. It comprises five articles that will cover what’s new in iOS 9 SDK, new features in Swift, Objective-C, and developer tools, and Apple’s new bitcode.

This series aims at introducing all that is essential for developers to know about building apps for the latest release of Apple’s mobile OS. Along with the new SDK, iOS 9 is also marked by new developer tools to support some of its features, and new releases of Apple’s major programming languages, Swift and Objective-C. Although the new SDK does not introduce as many new or enhanced features as iOS 8, which included more than 4,000 new APIs, it does still provide a wealth of new functionality and enhancements.

Objective c to swift migration