Andrea, MatN:
All good suggestions - I wish the name was not quite so long but the x86_64 is needed to distinguish 64 bit as opposed to 32 bit. It would be better if somehow the "older" versus "newer" could be better named but Andrea's suggestion to eliminate "newer" is good.
The reason for the directory name of "images" instead of "AppImage" is to accommodate Flatpak images in the future if someone figures out an easy script to create them also.
I will attempt to create an AppImage for 10312020 as MatN suggested.