iPadOS 8.2 (build 12D445d) is an official Apple over-the-air update for the iPad 4 (GSM), released on 2014-12-10T17:47:04Z. The update package is 40.06 MB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c370432302cdcaf4f15cc166d8481a8b459081ca.zip.