iPadOS 9.9.15.3.1 (build 19D6052) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2022-02-10T18:14:10Z. The update package is 3.66 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6f047fdf379a885f498f919e74b46fcee9cb658b.zip.