iOS 12.1.1 (build 16C5050a) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-11-15T18:04:51Z. The update package is 88.6 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0b61b269ad6ff842878cab4f04136e2ae15a0e89.zip.