iPadOS 9.9.12.0 (build 16A5366a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-08-31T17:07:22Z. The update package is 2.01 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: 5f2786456dc9240d3faebfb6eb66e321fbd1d3fb.zip.