iPadOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-09-12T19:05:05Z. The update package is 1.15 GB. This is a delta (partial) update that requires 11.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d9645109ed75bab24a1675be1bc37af3c232a577.zip.