This section provides information about MySQL Cluster software and table file compatibility between different MySQL Cluster NDB 7.3 releases with regard to performing upgrades and downgrades as well as compatibility matrices and notes. You are expected already to be familiar with installing and configuring a MySQL Cluster prior to attempting an upgrade or downgrade. See Section 18.3, “Configuration of MySQL Cluster”.
Only compatibility between MySQL versions with regard to
NDBCLUSTER is taken into account in
this section, and there are likely other issues to be
considered. As with any other MySQL software upgrade
or downgrade, you are strongly encouraged to review the relevant
portions of the MySQL Manual for the MySQL versions from which
and to which you intend to migrate, before attempting an upgrade
or downgrade of the MySQL Cluster software. See
Section 2.11.1, “Upgrading MySQL”.
The table shown here provides information on MySQL Cluster upgrade and downgrade compatibility among different releases of MySQL Cluster NDB 7.3. Additional notes about upgrades and downgrades to, from, or within the MySQL Cluster NDB 7.3 release series can be found immediately following the table.
Versions supported. The following versions of MySQL Cluster are supported for upgrades to MySQL Cluster NDB 7.3 (7.3.2 and later):
MySQL Cluster NDB 7.2 GA releases (7.2.4 and later)
MySQL Cluster NDB 7.1 GA releases (7.1.3 and later)
MySQL Cluster NDB 7.0 GA releases (7.0.5 and later)
MySQL Cluster NDB 6.3 GA releases (6.3.8 and later) that can be upgraded to MySQL Cluster NDB 7.1
For information about upgrades and downgrades in previous MySQL Cluster release series, see http://dev.mysql.com/doc/refman/5.1/en/mysql-cluster-upgrade-downgrade-compatibility-6.x.html, http://dev.mysql.com/doc/refman/5.1/en/mysql-cluster-upgrade-downgrade-compatibility-7.x.html, and Upgrading and Downgrading MySQL Cluster NDB 7.2
It is not possible to downgrade online to MySQL Cluster NDB 7.3.2 or earlier from MySQL Cluster NDB 7.3.3 or later. Online upgrades from MySQL Cluster NDB 7.3.2 to later MySQL Cluster NDB 7.3 releases are supported.