Hi Mick : I am afraid I don't have time to try to contact all the websites having copied and now distribute the older version and get them to update. In most cases these sites don't provide contact information.
For most users the old version works without any issues. The new and improved installer works better for advanced users, in particular those with capture and editing requirements, and/or running older OSs.
Similarly, MLJ tells me there are certain rare situations in which older NLE software requires the Windows bundled IYUV codec for some reason or other. He has therefore made available
a version without the Helix IYUV codec.