Any literature outlining differences between P6 v7 and P6 v8.3 ?

I know this is a loaded question but is there a SIMPLE whitepaper outlining the differences between the 2 client versions (as far as buttons, layouts, features, functionality etc) that could be presented and understood by a user? They dont care about database changes etc, just something simple and something that related to them in terms of use. The new users will be using 8.3 optional client so really just need a quick overview; a "whats new" if you will.  Thanks in advance!