What happens when a backup client with a newer major version tries to connect to an older NovaBACKUP Storage Server (xSP Device)?

A backup client with a newer major version cannot connect to an older NovaBACKUP Storage Server (xSP Device).

When testing the connection on the client, the following error message is displayed:

"An error occurred while trying to receive data from the server, the program cannot continue."

The server will have the following entries in its master log:

[30-May-2017:15:58:30] [service :0 ] Started logging

[30-May-2017:15:58:34] [service :0 ] CNFG USER 1

[30-May-2017:15:58:34] [service :0 ] CNFG GROUP 2

[30-May-2017:15:58:34] [service :0 ] CNFG AUTH NNW AUTHENTICATION

[30-May-2017:15:58:34] [service :0 ] CNFG SRVR WIN2008R2 STAND-ALONE

[30-May-2017:15:58:34] [service :0 ] SRVC PROD "NovaBACKUP Storage Server" "NovaStor"

[30-May-2017:15:58:34] [service :0 ] SRVC VERS 18.8.0.0

[30-May-2017:15:58:34] [service :0 ] SRVC STRT OKAY

[30-May-2017:16:00:01] [user :2452] PROT TRUE 19.0.0.0_0

[30-May-2017:16:00:01] [user :2452] **ERROR Client version not supported by server.