I think something is wrong with the new Mac installer. Have tried a few times now on different machines. It deletes v3.81 which is the previously installed version but does not replace it. Are others having the same problem?
welcome back to the Polycom Community.
I only got around and tried this today on my MacBook Air running High Sierra.
It uninstalled the 3.7.0 version and then installed the 3.9 Version without issues.
If you still have this issue please work with your Polycom reseller to get this into support.
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