View Upgrades provides instructions for upgrading from Horizon View 5.x (which includes 5.1.3, 5.2, and 5.3.3) or VMware Horizon™ 6.0.x (with View) to VMware Horizon 6 verison 6.1. You can also use this guide when you upgrade to View maintenance and patch releases.
If you are also upgrading your version of VMware vSphere®, this guide tells you which steps of that upgrade to do at various stages of the View upgrade.
For View patch releases, see Applying View Patches.