how to check wsus version on the server

If you ever wonder how to check the installed version of WSUS on the server side?
Well, there are two ways we can check the WSUS version on the WSUS server.

The GUI Method:
Launch the WSUS console then go to Help / About Update Services
The pop window for About Update Services will display the installed Update Services Version as below;

Server 2012:

Server 2016:

Registry key Check:
we can also check the installed WSUS services server version by opening;
HKLM\Software\Microsoft\Update Services\Server\Setup then check on the version String;

Server 2012 WSUS Server Version registry key:

Server 2016 WSUS Server Version registry key: