iOS 12.0 (build 16A5366a) is an official Apple over-the-air update for the iPhone 6s, released on 2018-08-31T17:07:35Z. The update package is 75.75 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: a6a84077b5975752b68243b206050ded0cccdecc.zip.