iPadOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2023-03-27T17:11:48Z. The update package is 2.25 GB. This is a delta (partial) update that requires 14.4.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5a895aa330158c94017303993fe95e7992f1240a.zip.