Xen is supported up to v6.2, we are currently working on performance issues in Xen v6.5.

Minimum Requirements:

 

XEN/HyperV/ESXI/KVM Virtual Machine
1 CPU
512MB RAM
5GB Hard Drive
2NICs (One WAN and one LAN)

Recommended Requirements:

 

XEN/HyperV/ESXI/KVM Virtual Machine
1 CPU
1024MB RAM
10GB Hard Drive
2NICs (One WAN and one LAN)