iPadOS 9.1 (build 13B5130b) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2015-09-30T17:58:07Z. The update package is 1.32 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4d3b3a59560754cb52cf1f9fbb680d8d29d75261.zip.