When I examine the changelog, I see that the 6-node triangle element has been temporarily removed with the arrival of gmsh support in ADONIS 3.90.
gmsh is a very powerful support tool, but I need a 6-node triangle element solution.
So is there any chance of accessing older versions? Is a download link possible for ADONIS version 3.75?

Hi,

I temporarily added the older link into the folder please use the following link:

geowizard.org/files/adonis/installer/ADONIS_3.75.5_Win_x86_Languages.msi

please note that 6-node element is removed from the latest version due to some issue in interaction with structural elements.

Thank you very much for your help and interest, I will take your warnings into consideration.