Can i manage Yosemite 10.10.2 clients with a 10.9.5 server with workgroup manager?

I work at a university and a professor running a lab would like to keep Workgroup Manager but run Yosemite clients. I can not find any specific documentation on this. Except : "Note: Workgroup Manager and previous versions of Server app are not compatible with Yosemite." But I believe that is just that there is no Workgroup Manager that runs on a Yosemite server.