iPadOS 12.0 (build 16A5366a) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2018-08-31T17:07:29Z. The update package is 1.24 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 15f6cbe1c233618047e3f5b4a8d2c9c463d47d57.zip.