audioOS 9.9.17.2 (build 21K365) is an official Apple over-the-air update for the HomePod, released on 2023-12-11T18:21:32Z. The update package is 1.84 GB. This is a delta (partial) update that requires 13.4.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5a446e88ce5e0469218908c337956154a92729dc.zip.