iPadOS 8.3 (build 12F5061) is an official Apple over-the-air update for the iPad 4 (Global), released on 2015-03-24T16:54:08Z. The update package is 100.4 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 89a5f846698a986cc2883592e277f4850c093855.zip.