audioOS 9.9.15.6 (build 19M65) is an official Apple over-the-air update for the HomePod mini, released on 2022-07-20T17:24:01Z. The update package is 235.7 MB. This is a delta (partial) update that requires 15.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b7da0a492dba510609259465a427ed55c899b635.zip.