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 962.5 MB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 92fb7d29eca44502d764a239e93b8364ca47b77b.zip.