audioOS 9.9.16.4.1 (build 20L498) is an official Apple over-the-air update for the HomePod, released on 2023-04-12T17:25:11Z. The update package is 1.43 GB. This is a delta (partial) update that requires 14.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 96894cc32fa9e44477869a990d402c2389c16c6c.zip.