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My Sonos system has just updated to version 6.4.2 which I now cannot find any documentation / changelog. iOS controller remains on 6.4.1.



With hindsight maybe a bit reckless on my part accepting the update but anyone got any info. May be relevant but my Public Beta profile is active but no info there either.
Sometimes is takes a bit before the release notes are updated. Give it time.
Thought that might be the case.
It's a bug fix, seemingly related to MP3 performance on selected models.



https://en.community.sonos.com/troubleshooting-228999/connect-strange-distortion-6739648/index1.html
Cheers Ratty, that will be it.
6.4.2 isn't yet available in the UK on Apple.
It's the firmware which updates to 6.4.2, not the controller.
The firmware for Play1, Connect and Sub has gone to 6.4.2. The Playbar remains at 6.4. Does that seem right?
Here is a screenshot
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