iOS 9.9.12.4.4 (build 16G140) is an official Apple over-the-air update for the iPhone 6, released on 2019-12-10T18:13:51Z. The update package is 2.13 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1f2f1b7c6babeb289ed50bd52204500690d31ead.zip.