audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

1.26 GB

Release Date

2025-03-31T17:29:37Z

Update Type

Normal release

Delta update - requires 17.1.1 installed first.

Download OTA

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About This Update

audioOS 9.9.18.4 (build 22L255) is an official Apple over-the-air update for the HomePod, released on 2025-03-31T17:29:37Z. The update package is 1.26 GB. This is a delta (partial) update that requires 17.1.1 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 8ec9882896e27e5949e5f5501220330d0366cd56.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-16048/E68101A1-0031-4ACE-8DD1-EC358E039341/com_apple_MobileAsset_SoftwareUpdate/8ec9882896e27e5949e5f5501220330d0366cd56.zip

Filename

8ec9882896e27e5949e5f5501220330d0366cd56.zip

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2

HomePod (2nd generation)

AudioAccessory6,1

HomePod mini

AudioAccessory5,1