I will be upgrading to Sonar Platinum from Sonar XI Producer this week.  In addition to the older Sonar I purchased Dimension Pro.  If I am reading the info correctly, I really don't need to upgrade DimPro and install it with Platinum because the specs show that a full version of DimPro is included in Platinum.  Am I understanding this correctly?  

Hi. I believe that you are correct. The latest update was to make it CCC compatible IIRC.
All the best.