Migration of vCAC 5.2 VM to vRA 6.2 Environment

Hello,

We are planning to migrate our vCAC 5.2.3 environment to vRA 6.2. I am just wondering the VMs created by vCAC5.2 will be migrated and managed by vRA 6.2 automatically or manual intervention required? How about vCO workflow that integrated with vCAC 5.2.3 can be migrated to vRA 6.2 embedded vCO automatically? Can we export the vCO workflows and import to vCO newer version?

Thank You.