Upgrading VMware ESXi from 6.5 to 6.7U3 without vSphere Client Published: 2020-03-21 Updated: 2020-03-21 21:45 Tags: vmwareesxi This is a quick step by step guide on how to upgrade a VMware ESXi Hypervisor from 6.5 to 6.7U3 without having a vSphere server and client by using esxcli