iPadOS 9.9.10.2 (build 14C92) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2016-12-12T17:57:19Z. The update package is 1.1 GB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ab60426696da9933f7714234970bde3f9defae6e.zip.