iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2016-08-25T16:53:22Z. The update package is 271.84 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d8b5331d7355ec8e7be3d2937c9db028463c8a43.zip.