audioOS 9.9.17.0 (build 21J354) is an official Apple over-the-air update for the HomePod mini, released on 2023-09-18T17:26:37Z. The update package is 1.53 GB. This is a delta (partial) update that requires 15.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0177047ed4e079a3d0799715d8c3ee20f2d62bd5.zip.