audioOS 9.9.16.1 (build 20K71) is an official Apple over-the-air update for the HomePod, released on 2022-10-24T17:16:46Z. The update package is 1.43 GB. This is a delta (partial) update that requires 13.4.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8cf8a89798ff53b493277d8a91fd14b6580735ee.zip.