We are on the home stretch of our Automating your vSphere Upgrade blog series. The final step of completing our upgrade will be upgrading our Virtual Distributed Switch (VDS). When upgrading your VDS on vSphere 6.7 the version is actually 6.6 (we will cover the details later). Please make sure prior to upgrading your VDS to 6.6 all ESXi hosts have been upgraded to ESXi 6.7, if you still have hosts on ESXi 6.5 you will only be able to upgrade to version 6.5.