Probably a minor thing, but has the update changelong not been updating for other people? I’m running the latest version, 2.0.0.3113, which I have Sonarr automatically updating itself to get (on Ubuntu 14.04 LTS server).
The last changelog entries I see are: http://i.imgur.com/xAo0LM4.png 2.0.0.3004 and 2.0.0.3000.
I’m not sure if it matters, but I still have the apt-get sources for Sonarr in my system, and when I upgrade other packages, this will also still update Sonarr if a newer package is found, even though I use the built in updater.