On January 14th 2020, VMware announced general availability of VMware Cloud Foundation (VCF) 3.9.1. This new release supports new features such as Application Virtual Network (AVN), improvements to Cloud Builder, many resolved issues specially around NSX-T and also BOM updates.
Application Virtual Network (AVN) enables vRealize Suite deployment to use NSX overlay networks in addition to VLAN-backed port groups. New installation of VCF 3.9.1 can use AVNs for vRealize Suite components and if you upgrade VCF from a prior release to 3.9.1 and willing to use AVNs, VMware Support should be contacted. VMware Cloud Builder which is being used for bring-up process of VCF now includes several new workflows and also deployment report of bring-up phase.
Regarding Bill Of Material(BOM), VCF 3.9.1 now supports vSphere and vSAN 6.7 Update 3b which holds many security and bug fixes. If you are using NSX-V in your management or VI workload domains, you can take advantage of NSX-V 6.4.6 and lastly VDI workload domain will also upgraded to Horizon 7.10. Those who are using VCF on VxRAIL, now VxRAIL Manager 4.7.410 is supported with this new release of VCF on VxRail 3.9.1.
You can get more information regarding DellEMC VxRail 4.7.410 in other blogpost.
To get more information you can visit VCF 3.9.9 release notes.