iPadOS 8.1.2 (build 12B440) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2014-12-09T17:49:03Z. The update package is 1.36 GB. This is a delta (partial) update that requires 7.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f31ca0928c078288c0da604866e079c57f1eefc1.zip.