iPadOS 12.0 (build 16A5354b) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2018-08-13T17:03:31Z. The update package is 1.17 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: fb6926cf35e7b1ca7827f85c2c70a941ff305cea.zip.