audioOS 9.9.17.2

audioOS 9.9.17.2 (build 21K365) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2023-12-11T18:21:43Z. The update package is 1.15 GB. This is a delta (partial) update that requires 16.5 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 8e32808f1c5f96047724264958f91d3adc0709fa.zip.