Today I demonstrated some of the new features of VMware vSAN 7.0 Update 3 (7.0 U3) related to 2-node deployments to one of our customers who uses this topology extensively. We have focused particularly on improvements to the resilience of 2-node clusters and the witness Host. You can find a short video about the features here. An extensive list of the new features and the release notes can be found here and here.
Another new feature I noticed but forgot zu demonstrate to the customer ist the new vSAN cluster shutdown and restart operation. I already tested the shutdown and restart feature with my 4-node cluster but as the demo was finished I decided to give the feature a try with the 2-node cluster and the external witness appliance.