audioOS 9.9.16.6 (build 20M73) is an official Apple over-the-air update for the HomePod mini, released on 2023-07-24T17:30:16Z. The update package is 1.22 GB. This is a delta (partial) update that requires 15.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b04618945b371d1b322632fe897b96f18ed6b22d.zip.