Quote Originally Posted by FactionHeir View Post
The Kingdoms update affects kingdoms.exe and the CA-made mods only. As VM is based on medieval2.exe, it will thus not have any effect on it. However, if you run VM with the kingdoms.exe (not sure if that's possible - can't try it myself), you would hypothetically get any improvements made in the patch for your game as well.
Some of the changes and improvements to Kingdoms necessitate new fields in various XML and export_*.txt files. That appears to be why the Retrofit mod was made in the first place. To get VM to use many of these improvements you'd need to merge the two mods. Even with a diff program this is proving somewhat difficult as I'm not versed enough in M2TW to know which changes you've made that would be possibly conflict (or are better done differently) with Kingdoms.

It would be great if you could make a version of VM to slot in over the retrofit mod; the two would complement each other nicely.