What happened to MySQL Cluster NDB 6.4?
Because of the number and impact of new features introduced into MySQL Cluster following the General Availability of MySQL Cluster NDB 6.3, it was decided that the following release series represented a “major” new release series rather than a “minor” one, and should be known as MySQL Cluster 7.0. The earliest development versions of MySQL Cluster NDB 7.0 were originally designated “MySQL Cluster 6.4”, and the first four releases in this series were identified as MySQL Cluster NDB 6.4.0 through NDB 6.4.3. MySQL Cluster NDB 7.0.4 is the fifth MySQL Cluster NDB 7.0 release; it is the successor to MySQL Cluster NDB 6.4.3. For more information about MySQL Cluster NDB 7.0, see Section 17.14.5, “Features Added in MySQL Cluster NDB 7.0”, and Section 17.16.1, “Changes in MySQL Cluster NDB 7.0”.
Because of the number and impact of new features introduced into MySQL Cluster following the General Availability of MySQL Cluster NDB 6.3, it was decided that the following release series represented a “major” new release series rather than a “minor” one, and should be known as MySQL Cluster 7.0. The earliest development versions of MySQL Cluster NDB 7.0 were originally designated “MySQL Cluster 6.4”, and the first four releases in this series were identified as MySQL Cluster NDB 6.4.0 through NDB 6.4.3. MySQL Cluster NDB 7.0.4 is the fifth MySQL Cluster NDB 7.0 release; it is the successor to MySQL Cluster NDB 6.4.3. For more information about MySQL Cluster NDB 7.0, see Features Added in MySQL Cluster NDB 7.0, and Changes in MySQL Cluster NDB 7.0.