Just a brief note to say that I went the route of {Support>New Version Check} to update my version of NIS , formerly v19 to version 20.3.0.36 - the update went without glitches and at the end of the download/install the patch was also installed - that was yesterday and so far I've had no conflicts or issues with the way my system is performing - everything went very smooth .
I didn't wait to get the update via "LiveUpdate" and so I guess I'm betting that this version is relatively clean - only time will tell I guess .