Upgrading from CFM 2.x to CFM 2.1.5 on CDP This section describes the steps to upgrade CFM 2.x to CFM 2.1.5. Before you upgradeBefore beginning your CFM upgrade, it is crucial that you review the migration and upgrade options, upgrade paths, and your CDP Private Cloud Base cluster requirements to ensure that you understand the prerequisites. Upgrading to CFM 2.1.5 from CFM 2.xTo upgrade to CFM 2.1.5 from earlier version of CFM on CDP Private Cloud Base, you must stop the CFM services, update the CSD files, restart the SCM Server, activate the new CFM parcel, and then restart your CFM services.