audioOS 9.9.18.6 (build 22M84) is an official Apple over-the-air update for the HomePod mini, released on 2025-07-29T17:27:59Z. The update package is 1.45 GB. This is a delta (partial) update that requires 16.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ace2e585ec3288f8e65dd96d0113f4174b769334.zip.