iPadOS 15.7.4 (build 19H321) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2023-03-27T17:11:40Z. The update package is 1.12 GB. This is a delta (partial) update that requires 15.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 471071dff9030e3c2db6e432788134408b429567.zip.