iPadOS 9.1 (build 13B5137) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2015-10-12T16:57:00Z. The update package is 1.33 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: 3d5bc6468daa96e41b210e3210de475a3a27e831.zip.