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 2.91 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: b99907e4665a4b92647870e6f5290c9d81d73c00.zip.