iPadOS 8.1.1 (build 12B435) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2014-11-17T18:06:05Z. The update package is 411.76 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d2252525ca7272b037c53c23c9f63cd36fd2685a.zip.