In vSphere 6.7 release, the UMDS 6.7 is bundled with the vCenter Server Appliance 6.7. You can use the UMDS bundle from the vCenter Server Appliance to install UMDS 6.7 on a separate Linux-based system.
UMDS is a 64-bit application and requires a 64-bit Linux-based system.
You cannot upgrade UMDS that runs on a Linux-based operating system. You can uninstall the current version of UMDS, perform a fresh installation of UMDS according to all system requirements, and use the existing patch store from the UMDS that you uninstalled.