iPadOS 9.1 (build 13B5130b) is an official Apple over-the-air update for the iPad mini (WiFi), released on 2015-09-30T17:58:03Z. The update package is 162.28 MB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8f69fba65aa3da391a18c323314ae68a72f601d7.zip.