audioOS 9.9.15.3 (build 19K547) is an official Apple over-the-air update for the HomePod mini, released on 2022-01-26T18:16:57Z. The update package is 181.97 MB. 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: 964599f3a0f1206e0f72071ed2a92833e2dd1790.zip.