Beside Server Hardware, also double check if your IO Devices (eg. NIC, HBA,..) are supported when updating ESXi hosts from VMware vSphere 6.0 to 6.5. The following devices were supported in vSphere 6.0 but are according to VMwares HCL not (yet) supported in vSphere 6.5.

Not supported does not say that it does not work.

The list has been created with the help of my IO-Devices HCL in JSON Format.

Did I miss something? Please comment.

Last Update: May 2, 2018

The following list is based on VMware HCL:

Source: VMware HCL | List created with JSON based HCL