iOS 12.0 (build 16A5365b) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-08-27T17:02:56Z. The update package is 57.7 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: 19cc51313cf78e884d7000e6141d4656245c7455.zip.