iPadOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2023-03-27T17:11:47Z. The update package is 2.93 GB. This is a delta (partial) update that requires 13.7 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 12ff390c424e4ca272415d1a0665c82f27de6db5.zip.