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iOS 8 is the eighth version of iOS, which was released on September 17, 2014.

It replaces iOS 7, and it was replaced by iOS 9.

Builds
The first developer beta of iOS 8 was released on June 2, 2014, and the GM version was released on on September 9, 2014. iOS 8 was officially launched on September 17, 2014. iOS 8.0 is the first version of iOS 10.