audioOS 9.9.16.0 (build 20J373) is an official Apple over-the-air update for the HomePod, released on 2022-09-12T17:06:21Z. The update package is 1.28 GB. This is a delta (partial) update that requires 14.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c5c9f9bf696eb5429cd12c7a98b1b62a22cc8375.zip.