ECC Upgrade from 4.7 to 6.0 Impact on SAP BW System

My organization is upgrading from ECC 4.7 to 6.0.  We currently have SAP BW 7.0.

Does anyone have a guide or checklist which shows the system settings which we will need to double check associated w/ SAP BW during this upgrade?  Obviously we will test all of our extractors, but if anyone has "what to watch out for" pointers it would be greatly appreciated.

Thanks!