iPadOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2023-01-23T18:47:59Z. The update package is 2.39 GB. This is a delta (partial) update that requires 14.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ad4b6baa8476943643e25256a5df751646b5775d.zip.