On March 27, 2017, Apple released MacOS 10.12.4 and iOS 10.3 version. With the launch of new iOS version, it is the third major update of the iOS 10 operating system. The iOS 10 was introduced last year on September 13, 2016. The latest iOS 10.3 version was in testing phase since January 24, 2017, but now it is available for free update for all the iOS 10 users. The new version available through iTunes for updating. Moreover, Xcode 8.3 is also available with support for iOS 10.3, tvOS 10.2, Swift 3.1, as well as MacOS 10.12.4 and WatchOS 3.2. Now, iOS developers can reply to reviews on apple app store.