audioOS 9.9.18.6 (build 22M84) is an official Apple over-the-air update for the HomePod mini, released on 2025-07-29T17:27:55Z. The update package is 1.76 GB. This is a delta (partial) update that requires 15.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b68454ddd4392aaae2f17554f7d28f4318f7c9b2.zip.