iPadOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-03-09T18:49:03Z. The update package is 1.06 GB. This is a delta (partial) update that requires 7.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3346e95cbd29f49041e2a466dfd8594d4706a2ed.zip.