iPadOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2023-03-27T17:11:45Z. The update package is 2.23 GB. This is a delta (partial) update that requires 14.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2ba0467835d7e02c0c56626cf51127ef216ea5f0.zip.