iPadOS 9.1 (build 13B5143) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2015-10-21T17:15:45Z. The update package is 1.32 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: 2413ad185c1fdb3c5e9491f11ea2713f49e13bcf.zip.