audioOS 9.9.16.5 (build 20L563) is an official Apple over-the-air update for the HomePod, released on 2023-05-18T17:11:28Z. The update package is 1.53 GB. This is a delta (partial) update that requires 14.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0319d2ceeeb5ee1ed8a485ca81c11e8be221f78d.zip.