audioOS 9.9.16.3.2 (build 20K672) is an official Apple over-the-air update for the HomePod, released on 2023-02-13T18:17:53Z. The update package is 382.25 MB. This is a delta (partial) update that requires 16.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 702b544bee4ef2c5e280bb044c2901fafbab8f25.zip.