hi,
the MySQL server on zedler will be upgraded to MySQL 5.0 some time today or tomorrow morning (within the next 12 hours). the downtime should be minimal; all database will be converted automatically.
MySQL 5.0 adds several new features such as SQL stored procedures and views to MySQL. a summary of changes can be found here:
http://dev.mysql.com/doc/refman/5.0/en/mysql-5-0-nutshell.html
a summary of all changes can be found here:
http://dev.mysql.com/doc/refman/5.0/en/news-5-0-x.html
a list of incompatible changes which may require your software to be modified can be found here:
http://dev.mysql.com/doc/refman/5.0/en/upgrading-from-4-1.html
rgds, kate.