Mono version 188.8.131.52
Version 3 is installed, but the UI is version 2.
I had v2 installed on Ubuntu 18.04, followed the instructions below…
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 2A9B4BF8
sudo echo “deb https://dl.bintray.com/sonarr/phantom wheezy main” | sudo tee /etc/apt/sources.list.d/sonarr.list
sudo apt update
sudo apt install sonarr
then edited sonarr.service to path to Sonarr.exe, previous path was to Nzbdrone.exe…
Then rebooted the computer.
sonarr service is running, everything starts up as expected, go to localhost:8989 and the UI is V2. Go to System/Updates and “184.108.40.2064 — Nov 30 2018 phantom” is installed. All the new features appear to work, it just isn’t loading the new interface.