iPadOS 8.1.1 (build 12B435) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2014-11-17T18:06:05Z. The update package is 121.1 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e21716878ada6ae53f0dd619d166d7214032382e.zip.