In my experience since Blender’s shaders, shape keys and auto smooth functionality has change so significantly over that past few years and Blender will continue to evolve keeping track of the combination of Blender version and Verge3D version is critical for maintaining your apps. Nothing worse than just going to make a simple update and realizing you have to fix so much other stuff just to switch versions of either Blender or Verge3D.
If you don’t already…I recommend adding a comment area to your initial scripts stating what version of Blender and Verge you used on the project so at some later day you can come back read it and then – reset your system to just easily make any required updates or at least know what headaches you are about to encounter if you roll them up to the latest code.
I highly recommend keeping a copy of the blender applications you use and a copy of Verge3D by version number so you can roll forward and backward when ever you need to.