iPadOS 9.9.13.1.3 (build 17A878) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2019-10-15T17:07:14Z. The update package is 2.58 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: 1b742940ae354b5f05997b7c37946bc5e3f59acc.zip.