iOS 9.0 (build 13A4293g) is an official Apple over-the-air update for the iPhone 6, released on 2015-07-08T18:38:06Z. The update package is 374.37 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 14185d20825d3d2e1ed51411f3caed7003152fde.zip.