iOS 9.9.11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 6+, released on 2017-11-09T18:09:58Z. The update package is 1.7 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: d40fc08b21472003a57f80139d7010ea36211ab2.zip.