iPadOS 8.2 (build 12D5461b) is an official Apple over-the-air update for the iPad 4 (GSM), released on 2015-01-12T17:54:03Z. The update package is 179.12 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: 00482c984b87372eda85b8b95f75e962b5817190.zip.