30.4.5.22 The version_patch() Function
 
 
 
          This function returns the patch release version of the MySQL
          server.
            A TINYINT UNSIGNED value.
 
mysql> SELECT VERSION(), sys.version_patch();
+-----------+---------------------+
| VERSION() | sys.version_patch() |
+-----------+---------------------+
| 9.2.0     |                   0 |
+-----------+---------------------+