|User Devices and Client Application Configuration|
If your devices are using VCS 3.4 or later for iOS, you must have SSL enabled on the VMP Server.
See VMP Server Requirements for more details on VMP hardware requirements.
If you are upgrading your iOS devices to VCS 3.4 or later, and you are installing a new SSL certificate on your VMP Server, you will need to re-register your VCS application on your devices. See Sending Installation Information to User Devices for more details on registration.