iOS 8.0 (build 12A365) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2014-09-17T17:54:04Z. The update package is 957.22 MB. This is a delta (partial) update that requires 7.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ca1824f8baedfbeecc6f561e15aabe285065a276.zip.