audioOS 9.9.18.6 (build 22M84) is an official Apple over-the-air update for the HomePod, released on 2025-07-29T17:27:49Z. The update package is 1.42 GB. This is a delta (partial) update that requires 16.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 921de1295c3c2934a6992e76bd917d7718341432.zip.