audioOS 9.9.14.5 (build 18L203) is an official Apple over-the-air update for the HomePod (Unknown Model), released on 2021-04-26T17:18:06Z. The update package is 663.78 MB. This is a delta (partial) update that requires 14.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 859a4920d28cec1a732d92e6dae30f7cbd87680e.zip.