audioOS 9.9.16.6 (build 20M73) is an official Apple over-the-air update for the HomePod, released on 2023-07-24T17:29:58Z. The update package is 1.21 GB. This is a delta (partial) update that requires 15.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d44c261ad8494890abbadce57af906c506dc2e55.zip.