How it works...

The chances of successfully upgrading your vSphere environment without affecting the supportability and compatibility of your existing components will completely depend on how you plan and execute the upgrade. Once you have taken care of the hardware and software dependencies discussed in this section, you can safely execute the upgrade scripts to perform the upgrade. We will cover vSphere 5.5 to 6.5 and vSphere 6.0 to 6.5 upgrades in separate sections.