audioOS 9.9.15.1.1 (build 19J582) is an official Apple over-the-air update for the HomePod mini, released on 2021-11-03T17:10:33Z. The update package is 972.77 MB. 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: f885adc6cb532f147b3716525c6a068fd479beca.zip.