Looks like I made an error with the version for 3.0.6... I'll update the patch notes, thanks!
There is no specific exe download for 3.0.6/7 as I'm working on getting the code signing cert working again. So it was released as a patch only.
I'm not sure why it doesnt update for you. Maybe the minion.log holds some info? Possibly it does not have write permissions where you have Minion installed? There should maybe be some info in the log if you share it here.