Research Cumulus Upgrade and make stable plan here

[krisstanton]

• [ ] Research the steps that need to be taken to perform a succesful Cumulus Upgrade this PI
• [ ] Also outline the future plan for the next upgrade (Note, the upgrade path is slightly more complex this time around -- See Upgrade Path Diagram)
  • [ ] Place Upgrade Path Diagram in here (see email)
• [ ] Add any other necessary or useful contextual information in here.