UCSD 6.5 recently came out (July 2017) with support for new features, such as
- Windows Server 2016 bare metal provisoning
- ESXi 6.5
- NetApp ONTAP 9.1, including All Flash FAS
Here you can find step-by-step instructions (with a workflow) for provisioning ESXi 6.5 on FlexPod with UCS and NetApp iSCSI storage. This is very similar to ESXi 6.0 or 5.5.