How do I upgrade to MYM12?

Upgrading to MYM12 is easy. Just run the MYM12 install program and after it installs, tell it where your old data resides. If MYM12 is already installed, run the install program and press F4 to convert a specific dataset. The install program will make a copy of the MYM11 dataset under the newly installed MYM12 folder and then convert the data to version 12 format automatically. MYM11 won't be touched in any way. You are going to love MYM12! Check out all of the new features here.