VDR 2.0 for vSphere 4.1 - Management and Licensing

Hi,

Can anyone shed some light on the licensing for VDR 2.0? I've got VMware Essentials Plus which gives me VDR but am I licensed to deploy the 2.0 version which appears under vSphere 5.0?

Also, if I want to use VDR 2.0, do I have to use a new plugin and will that work OK on my 4.1 vSphere client?

Thanks