iPadOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2016-08-25T16:53:21Z. The update package is 89.99 MB. This is a delta (partial) update that requires 9.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 207ffdc4a7f93a20e6efafc3ed9353abdfdd6cd1.zip.