iOS 12.0 (build 16A5354b) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-08-13T17:04:00Z. The update package is 294.08 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 83ae4dc1358c93a4e899f0ea973278a3df96af26.zip.