The Natural Native Interface might change in future versions of Natural.
Natural versions that provide a modified interface will support previous
interface versions in parallel, until a point in time that is determined by
Software AG and is announced in time. To access an instance of a specific
version of the interface, the application calls the function
nni_get_interface. The
application passes the required interface version number to the function and
receives a structure with function pointers in return. The application may also
request the most recent interface version, without specifying the interface
version explicitly.
