iPadOS 11.1 (build 15B101) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2017-10-31T16:59:39Z. The update package is 198.16 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 316fd243c6d025f4c260876b6944572d9034ae53.zip.