iPadOS 8.3 (build 12F5047f) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2015-03-12T16:56:09Z. The update package is 84.44 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: ac23e1058b9e3e80683e82c13c729aa58d3e3ddb.zip.