Automatic update does not work for me

I am using unchecky for a very long time, thanks for this great software.

But there is some minor issue for me: i always had to update it manually.

The latest version is out for a week, but my unchecky instance is still not updated.

Is there a log file to see why it fails updating? I am behind a proxy, maybe this is a problem, but i don't know since unchecky does not complain.

Maybe a button to check manually for updates could be implemented. Any problems reaching the server or so could be directly reported via a message box then.