We are still on a server license and are looking at whether we want to go to Data Center or the Cloud. During our analysis, we found some security vulnerabilities in our current Confluence version (7.13.20). We are not ready to go to the cloud or data center yet, so we are just upgrading to the last supported Server version (8.5.6) to secure the vulnerability ASAP.
What is the proper upgrade path for Confluence Server 7.13.13 to 8.5.6?