iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad 4 (Global), released on 2015-04-08T17:56:07Z. The update package is 319.57 MB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c6ea62fe516518cb8dbb317a785f918d40feb72a.zip.