The Open compute project has different types of projects for open rack.
The following is the types (family) of OpenRack mentioned in open compute contributions.
OpenRack v2OpenRackOpenRack v1
Following is the link. I have filtered for rack.
So, it can be understood that OpenRack v1 is older spec than OpenRack v2 from name itself.
But where does OpenRack stand? Can we consider it later than v2?