What I have done so far is just compared the default solutions to identify the different entities. I have not been able to find any documentation that lists the differences between the versions. I have also compared the security roles. I expected that with an upgrade, there would be new entities and privileges to uncover and of course there are. I put together a list of the changes that I have noticed in the security roles (see attached). Some privileges were removed, some added, some renamed. Also, there have been 2 tabs added to the security role: Missing Entities & Business Process Flows.
I don't have a complete list of new ENTITIES but just looked through and found these:
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