iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2018-09-12T19:10:38Z. The update package is 1.7 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 37ed6a3c40bf4cbf9a2a79bbf90ab827e285b6de.zip.