If you previously used E75.30 VPN-client and have installed Windows 8.1, you may be slightly confused as to which VPN-client you should use with your existing licenses.

Remote Access Clients E75.30 does not have a planned release for Win8.1 and you need to move over to E80.
The E80-train used to require its own management server and its own licenses in order to be administrated.

Clients
E75.30 moves to E80.42 which supports Windows 8.1.
E80.50 > Managed using SmartEndpoint on R77 SM.

Licenses
E80.42 uses the same licenses as E75.30
E80.52 managed using SmartEndpoint on R77 SM with appropriate licenses.

HTH