audioOS 9.9.16.0 (build 20J373) is an official Apple over-the-air update for the HomePod mini, released on 2022-09-12T17:06:41Z. The update package is 1.02 GB. This is a delta (partial) update that requires 15.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f9e0683996da1aac369c6115c40740be04f72317.zip.