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 1.11 GB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c202ae0b85f34a9e03b250af2c03d10b7d7e62d2.zip.