iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-09-12T19:06:35Z. The update package is 1.24 GB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cc429a1824c096d47136c5b079a5a733b62a5f95.zip.