Checking the Server Version

To find out what version of the Yellowbrick database server is running, return the current value of the yb_server_version configuration parameter. Use the following SHOW command:
premdb=# show yb_server_version;
 yb_server_version 
-------------------
 3.0.0
(1 row)
Alternatively, you can use the VERSION() function:
premdb=# select version() from sys.const;
                 version                  
------------------------------------------
 Yellowbrick Database version 3.0.0-13610
(1 row)