audioOS 9.9.16.5 (build 20L563) is an official Apple over-the-air update for the HomePod, released on 2023-05-18T17:11:48Z. The update package is 190.92 MB. This is a delta (partial) update that requires 16.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3551337130d75d2da97a63ae76312439ced74b4f.zip.