The initscript used to start mysql has been reverted to use the one shipped
by MySQL AB. This means the following changes:

 * The generation of the initial system mysql database is now done when mysql
   is started from the initscript and only if the /var/lib/mysql/mysql
   directory is empty (mysql_install_db). Previousely this was quite hidden and
   silently done at (rpm) install time. As a consequence to this change you may
   have to perform some manual tasks to upgrade the mysql system database and
   such. So, doing something like this might help you:

   /etc/rc.d/init.d/mysqld stop
   TMPDIR=/var/tmp mysql_install_db
   mysql_upgrade

The cluster functionalities (ndb) has been deactivated and will be removed in
future mysql versions. A new product named mysql-cluster has been added (in
contrib) that replaces the cluster functionalities.

The mysql-common-core package ships with a default /etc/my.cnf file that is 
based on the my-medium.cnf file that comes with the source code.

Starting from mysql-5.1.43-2 the storage engines is built as dynamically
loadable modules. You can either load the engines using the /etc/my.cnf file or
at runtime. Please look at these lines in the /etc/my.cnf file to enable
additional engines or disable one or more of the default ones:

plugin_dir=/usr/lib/mysql/plugin
plugin-load=ha_archive.so;ha_blackhole.so;ha_innodb.so;ha_federated.so

Starting from mysql-5.1.44-3 the html documentation and the mysql.info is not
shipped with the Mandriva packages due to strict licensing.