Oracle 5.0 Reference Manual page 1565

Notes
• MySQL 5.0.2 was the first public release in this series.
• Direct upgrades or downgrades between MySQL Cluster 4.1 and 5.0 are not supported; you must
dump all
NDBCLUSTER
reload the tables from the dump.
• Online downgrades from MySQL Cluster 5.0.12 to 5.0.11 (or earlier) are not supported.
Upgrading and Downgrading MySQL Cluster
tables using mysqldump, install the new version of the software, and then
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