iPadOS 9.9.12.1 (build 16B5089b) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-10-22T17:01:31Z. The update package is 2.02 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: 899eb774b33e61b8950c3029f67bb81a36d73db5.zip.