VxRail Cisco Nexus Switch Support

Has anyone seen a comprehensive list of Cisco Nexus switches that have been used successfully as the ToR switch(es) for a VxRail appliance?  Curious if anyone has deployed VxRail connected to a set of Nexus 3K switches.

Cisco Nexus Switch Configuration Guide for VSPEX BLUE.pdf contains the following blurb:

"The Cisco Nexus 6001/6004/5600/56128/5696 models do not support IPv6 multicast so you will need an external switch to provide this functionality. For example, you can connect a Cisco Nexus 7000"

I'm curious on the exact feature/service limitation that warrants this statement, and if it's even true in the latest version of the NX-OS code for these models.  Does "IPv6 support" only qualify if the switch supports BOTH MLD Snooping and Querier for IPv6 multicast?

(I haven't been able to find an updated version of this same guide branded under the VxRail name.  SolVe desktop still spits out the VSPEX BLUE guide when running through the tool).