iPadOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2023-01-23T18:47:47Z. The update package is 2.17 GB. This is a delta (partial) update that requires 14.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 85da4dae1e13793f34283a2aef9f1c78c5fe81d3.zip.