audioOS 9.9.17.0 (build 21J354) is an official Apple over-the-air update for the HomePod mini, released on 2023-09-18T17:26:39Z. The update package is 1.53 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: 61065ae8933ec0f2314c7dab318861ba0df2c304.zip.