Is it possible to upgrade ESXi from 6.0 to 6.7U3 directly or will I need to plan to go through earlier versions to get to 6.7U3?
My vSphere client is on version 6.5.0.13000
Thank you
Yes you can.
You can always check the upgrade path here VMware Product Interoperability Matrices
yes you can upgrade from version 6.0.0 to all version of 6.7 directly
Yes, you can upgrade. However, do not forget to do firmware update before upgrading ESXi. After the upgrade, you will minimize the problems. We can also check ESXi compatibility if you write the brand and model information of the hardware you have used.