iOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2015-09-16T18:02:14Z. The update package is 860.27 MB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 21ea7bf01c9fdf8f82b24324e5c2bdebc783ff4a.zip.