iPadOS 9.9.10.1.1 (build 14B100) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2016-10-31T14:59:00Z. The update package is 1.13 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4520ba1336040e541f693492bdea61d224074461.zip.