It seems that file type specific configuration does not work on Vedit 6.20.2 (and 6.20.1).
Syntax highlight and template editing files are not loaded for example for .c and .vdm files.
However, when I look at the configuration files c.cft and vdm.cft, they do contain commands for loading syntax and template files.
I do have the configuration option "Enable auto file type" enabled.
I thought perhaps this is because the syntax files have been moved to a new directory. However, they are not loaded even from user-mac directory.
On Vedit 6.15.4, the file type specific configuration does work correctly.