iPadOS 8.2 (build 12D5461b) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-01-12T17:54:03Z. The update package is 178.55 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: 1d8db42ee3e3b10f7f72cdd63f21e4e33adfbdcb.zip.