iPadOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2023-01-23T18:47:51Z. The update package is 2.39 GB. This is a delta (partial) update that requires 14.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ed557efbfb6b698f95199420bf3de1823bbf14df.zip.