I reviewed what was in CU1 for service pack 2.
I compared it to CU10 for service pack 1.
I did not find 4 fixes that were in CU10. kb2938476 kb2939277 kb2954480 kb2936328
kb2936328 was include in service pack 2.
the others I could not find them.
So the question is, did they make it to CU1.
kb2938476 deals with import/export data wizard issues.
kb2939277 deals with queries that contain Union operator
kb2954480 deals with SSAS instance crashes when you perform writeback action by using the role with cell security defined.