audioOS 9.9.17.1.1

audioOS 9.9.17.1.1 (build 21K82) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2023-11-07T21:40:11Z. The update package is 1.14 GB. This is a delta (partial) update that requires 16.3.1 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 9e21811aa5bfffd7f87168e7afb014efe12541bd.zip.