iPadOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2023-03-27T17:11:44Z. The update package is 680.46 MB. This is a delta (partial) update that requires 15.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8a70c64fb9a0fe54f18e4508f69d89dede1f9507.zip.