I just want to say I'm pissed about having to go to a sketchy virus-laden third-party download source for a version of Paint.NET that works on Win8.1. This is a specialized rig, not a daily driver machine. Updating the OS is not an option for me in the context I need it because of certain software compatibilities.
Please consider keeping at least one old version hosted here that is safe and works with old OSes. Even if it's with a disclaimer that it's as-is and doesn't have any support.