iPadOS 12.2 (build 16E5212f) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-03-04T18:04:37Z. The update package is 650.15 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cdcd41dfde54030b71dd8f78ec5e77ddf54e8667.zip.