Hi folks!
The development and maintenance of the Terraform provider for VMware vSphere has transitioned to VMware by Broadcom under the github.com/vmware organization and the vmware/vsphere namespace on the Terraform Registry. 
All previously released versions from hashicorp/vsphere have been re-signed and now appear on the Terraform Registry under vmware/vsphere. You will begin to see the following in the Terraform CLI when using the provider:
... this provider has moved to vmware/vsphere. Please update your source in required_providers.
Please be sure to update your configurations from hashicorp/vsphere to vmware/vsphere.
Ryan Johnson
Distinguished Engineer, VMware by Broadcom