audioOS 9.9.16.0 (build 20J373) is an official Apple over-the-air update for the HomePod, released on 2022-09-12T17:06:18Z. The update package is 1.41 GB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8c9218a477f832b05db78304fe9099e839701ae9.zip.