iPadOS 8.3 (build 12F5061) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2015-03-24T16:54:07Z. The update package is 85.57 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: 0308f677e0f1d79b5103c601d6766293d8e37868.zip.