audioOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the HomePod, released on 2018-07-09T17:13:22Z. The update package is 187.38 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b645662471b335814e01213ae34c9082185f1f69.zip.