iPadOS 9.1 (build 13B143) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2015-10-21T17:15:58Z. The update package is 257.51 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 71e6d38b71bc7955c56b1f169f247320e487e1c3.zip.