For some apparent reason all my virtual machines show an alert that the VMware tools is out of date. While the summary states that its running the current version
VMware Tools is out of data on this virtual machine while summary states Current
When trying to upgrade the VMware tools, all options are grayed out:
Grayed out VMtools options
It appears to be a cosmetic error but I stil wanted to know why it shows the alert on my virtual machines.
As it turns out I created my templates on my management cluster host (lab) and that host runs a newer version of vSphere 5.5 (2068190)
Management cluster version
My workload cluster host run a slightly older version of vSphere 5.5 and it uses a different version of VMtools.
Workload cluster version
The VMtools version list helps you to identify which version of VMtools installed in your virtual machine belongs to which ESXi version:
Hope this clarifies this weird behavior of the UI for some.