iPadOS 9.1 (build 13B143) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2015-10-21T17:15:55Z. The update package is 26.94 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: 8b55e5297c17d38ffd84aa65be3334c84afb6bfa.zip.