audioOS 9.9.15.1.1 (build 19J582) is an official Apple over-the-air update for the HomePod mini, released on 2021-11-03T17:10:32Z. The update package is 1.12 GB. This is a delta (partial) update that requires 14.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 76690c2c9e3f9b2c7d506dff6333ce85388d6090.zip.