audioOS 9.9.16.4.1 (build 20L498) is an official Apple over-the-air update for the HomePod mini, released on 2023-04-12T17:25:29Z. The update package is 1.18 GB. This is a delta (partial) update that requires 15.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: af266b030a1394258e2e9ee127fd7f11c0659088.zip.