vCenter appliance 6.5 is one of the latest & stable release of vCenter . vSphere 6.5 adds an X-Large deployment size, the update manager and a fully supported migration assistant to the appliance. So it’s time to migrate your Windows based vCenters to appliance with vSphere 6.5. vSphere 6.5 is fully dependent on webclient. So no more vSphere client or C# client. VCSA 6.5 Enhancements Supports up to 2000 ESXi Hosts and 35.000 Virtual Machines Guided Installer (Interactive Installer, instead of OVF Template) Robust deployment (Separate Deployment and Configuration to prevent failed deployments Migration Assistant (Migrate vCenter Server 5.5 or 6.0 for Windows to vCenter Server Appliance) Native High Availability VMware Update Manager Built-In Backup+Restore Improved Appliance Management HTML5-based vSphere Client Photon OS (Replaces SUSE Enterprise 11) Compatibility To view the compatibility of Esxi,