iOS 9 is the ninth major release of the iOS mobile operating sy... - dofaq.co
ios9

iOS 9 is the ninth major release of the iOS mobile operating sy...

wikipedia - 17 Sep 2015
iOS 9 is the ninth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 8. It was announced at the company's Worldwide Developers Conference on June 8, 2015, and was released on September 16, 2015. It was succeeded by iOS 10 on September 13, 2016.

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