A modal dialog with only "OK" as a choice is something reserved for information the user really, REALLY needs to know and nothing can be done about it. Such as "We just deleted your hard drive because it's the easiest way for us to install our software. You will need to re-install everything else yourself. [OK]"
Vienna Assistant is nice enough as an installer, though the visual design is cluttered. And it's nice the team makes regular updates. And you want to acknowledge all the work they do.
But roadblocking the entire UX every. single. time. they fix or add something to this thing? You have to read their incongruous release notes and target a little OK button before you can do anything else? Rather than making the team look good, this is making it look like rank amateurs.
Stop that. You can give us a link to release notes we can read and appreciate if we want to. But otherwise we launch the installer, immediately see any updates we need to apply, or products we can install or repair, apply them in one click and are done. Your team and their progress may be very dear to you. Stop embarrassing them with these pointless modals. Count clicks and minimize them. Count visual elements to read and minimize them. Technology's value proposition is making things easier and faster.
