Devo 10 and 3.0

To be sure you should save your old models, then completely replace your filesystem and make sure things work. Then put your models back once you are sure everything is installed properly.

Your old models should work fine.

I've clarified the requirements in the Changelog

As I've said before, I expect courtesy by everyone to everyone here. Not everyone is an expert, and it is not always obvious what needs to be done, or why it doesn't work when you think you've done everything right. That is the entire point of these forums is to help people having problems. I realize it can be frustrating being on the other side when it seems like each person is having the same problem everyone else does, but if that is the case, it is my fault, since obviously the instructions aren't clear enough if many people have the same issues. Don't take it out on the ones asking questions.

I want this forum to feel supportive so that people don't feel the need to PM me because they are scared of asking questions. That means everyone needs to try to be as helpful as possible (or just don't say anything if you don't feel you can do so). As I have shown before, I value courtesy over technical competence, and stand by those decisions.

buckp50 if you are still unable to get Deviation to work, please let us know. I believe the most likely occurrence is that something went wrong with your FS install. Make sure you back up your models 1st. Deviation should have no issue reading them, but it is always easier to start from a known working configuration to eliminate possible issues.