audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

74 MB

Release Date

2025-04-16T17:28:48Z

Update Type

Normal release

Delta update - requires 18.4 installed first.

Download OTA

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

About This Update

audioOS 9.9.18.4.1 (build 22L261) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-04-16T17:28:48Z. The update package is 74 MB. This is a delta (partial) update that requires 18.4 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 66d8b1ab00f9278b899283c1431d129969ce0727cce25ad4fe188163dd9457f8.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-18744/8D90FA26-3639-4A16-B0CC-DC3E5CECA132/com_apple_MobileAsset_SoftwareUpdate/66d8b1ab00f9278b899283c1431d129969ce0727cce25ad4fe188163dd9457f8.aea

Filename

66d8b1ab00f9278b899283c1431d129969ce0727cce25ad4fe188163dd9457f8.aea

Other Devices

HomePod

AudioAccessory1,1

HomePod (Unknown Model)

AudioAccessory1,2

HomePod mini

AudioAccessory5,1