SAP TM upgrade- BW Activities

Hello Guys,

We are upgrading to SAP TM9.6. What are the Pre/Post Upgrade activities we need to do in SAP BW? The activities should be similar to ECC Upgrade related activities. However it would be great if you can provide specific details with transaction codes. Also, do we have anything like V3 Jobs in TM system? If yes, what are the transaction codes. What are steps to be followed?

Thanks very much in advance.