iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-04-08T17:56:07Z. The update package is 1.07 GB. This is a delta (partial) update that requires 7.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 725b85947a5b2cadc3ab466f0a57af1d0a10c11d.zip.