audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

800 MB

Release Date

2025-03-31T17:29:50Z

Update Type

Normal release

Delta update - requires 18.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod (2nd generation) →

About This Update

audioOS 9.9.18.4 (build 22L255) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-03-31T17:29:50Z. The update package is 800 MB. This is a delta (partial) update that requires 18.3 to already be installed on the device - it cannot be applied from scratch. This update is currently signed by Apple, so it can be applied directly from Settings › General › Software Update.

The OTA payload file is 1ae70943be8c0eb54bcf97337b7722ac0ef2b2fe127965cbf0702b44ad6971d0.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-16131/94538325-EF99-4E94-81CD-671D05947F33/com_apple_MobileAsset_SoftwareUpdate/1ae70943be8c0eb54bcf97337b7722ac0ef2b2fe127965cbf0702b44ad6971d0.aea

Filename

1ae70943be8c0eb54bcf97337b7722ac0ef2b2fe127965cbf0702b44ad6971d0.aea

Other Devices

HomePod

AudioAccessory1,1

HomePod (Unknown Model)

AudioAccessory1,2

HomePod mini

AudioAccessory5,1