It would make life easier if it would be possible to deselect updates on the RIGHT side with a checkbox, too (like on the left side). Right now people have to scroll through the list on the LEFT side through ALL supported programs to deselect an app for an update (for example if the detection is broken, like with SumatraPDF and XnView(MP)).
Like this maybe:
We are going to announce the Home Updater v5.0 in around 10 days and it's totally remade from scratch with a modern design, and it won't even have a list on the right anymore :)