audioOS 9.9.17.1 (build 21K69) is an official Apple over-the-air update for the HomePod, released on 2023-10-25T17:23:50Z. The update package is 1.69 GB. This is a delta (partial) update that requires 14.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 873bffe19b1395976f683c8b8f8dc46ae5ade960.zip.