upgrading from 2.0.x to 3.0 M3: is there a guide?

[Robert Zeigler]

I'm looking at upgrading a medium to large app from cayenne 2.0.3 to  
3.0 M3.
It's a tapestry3/cayenne application.  I looked over http://cayenne.apache.org/doc/upgrade.html 
.
The only thing listed there that may bite me is that the app makes  
some use of Derived db entities, so I'll have to fix that.
I also seem to recall from the list that using setPersistenceState as  
a location for initializing properties of new objects is deprecated in  
favor of using the lifecycle callbacks.
Anything else major?

TIA!
Robert