On Friday, November 17th, VMware released yet another update to PowerCLI. New in 6.5.4 there are cmdlets to help you manage your VMware Cloud on AWS environment and some new functionality to the storage cmdlets.
For full details on the latest release check out the VMware PowerCLI Blog: https://blogs.vmware.com/PowerCLI/2017/11/vmware-powercli-6-5-4.html
Remember in order to update your PowerCLI module open PowerShell and run:
Update-Module VMware.PowerCLI