This is a new Beta development release, fixing recently discovered bugs in previous MySQL Cluster releases.
MySQL Cluster NDB 6.3 no longer in development. MySQL Cluster NDB 6.3 is no longer being actively developed; if you are using a MySQL Cluster NDB 6.3 release, you should upgrade to the latest version of MySQL Cluster, which is available from http://dev.mysql.com/downloads/cluster/ .
Obtaining MySQL Cluster NDB 6.3. This is a source-only release, which you must compile and install using the instructions found in Installing MySQL from Source, and in MySQL Cluster Installation and Upgrades. You can download the GPL source tarball from the MySQL FTP site at ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/.
This Beta release incorporates all bugfixes and changes made in the previous MySQL Cluster NDB 6.3 release, as well as all bugfixes and feature changes which were added in mainline MySQL 5.1 through MySQL 5.1.23 (see Changes in MySQL 5.1.23 (2008-01-29)).
Please refer to our bug database at http://bugs.mysql.com/ for more details about the individual bugs fixed in this version.
Due to the reduction of the number of local checkpoints from 3 to 2 in MySQL Cluster NDB 6.3.8, a data node using ndbd from MySQL Cluster NDB 6.3.8 or later started using a file system from an earlier version could incorrectly invalidate local checkpoints too early during the startup process, causing the node to fail. (Bug #34596)