audioOS 9.9.16.3 (build 20K649) is an official Apple over-the-air update for the HomePod, released on 2023-01-24T18:07:48Z. The update package is 1.49 GB. This is a delta (partial) update that requires 14.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b5a7c404cd1c92b6d81310fb1900f99bb44bafc7.zip.