I agree with what others have said though, it would be much better with a "Enable developer mode" option in a settings dialog rather than editing the registry. You could have tabs and then give it a unique page where it says a quick warning people should not enable it if they don't know what they are doing. In a unique tab it would allow you to add additional options in the future also.
I don't usually use app updater options as i just go to the forums/website and prefer to use them offline. If there is going to be online things it would be good to have the options to disable the checking in the settings as anti-virus apps give warnings etc so it would be good to have this option available.
Even though the app is beta it is starting to get really good, and once expressions are fully added like in V1 it will be great. Nice work so far