audioOS 9.9.14.3 (build 18K563) is an official Apple over-the-air update for the HomePod (Unknown Model), released on 2020-12-15T18:08:24Z. The update package is 284.73 MB. This is a delta (partial) update that requires 14.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 279edc5677c80bc34634cb223a75839ee5b76763.zip.