iPadOS 15.7 (build 19H12) is an official Apple over-the-air update for the iPad Air 4 (Cellular), released on 2022-10-24T17:40:43Z. The update package is 2.62 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4a324b04536646da13fb1393a7405373971018c2.zip.