The binary and source versions of MySQL Cluster 7.2.19 have now been made available at http://dev.mysql.com/downloads/cluster/7.2.html.
MySQL Cluster NDB 7.2.19 is a maintenance release of MySQL Cluster, incorporating fixes for bugs found in previous MySQL Cluster NDB 7.2 development releases.
MySQL Cluster NDB 7.2.19 source code and binaries can be obtained from here.
Review the MySQL Cluster 7.2.19 Release Notes for a description of the bug fixes included.