Attention SL 5 MySQL users:

Upstream will not issue any more security advisories for the MySQL 5.0 
packages (mysql-5.0.* and related packages).

In order to ensure your systems are fully up to date with security 
errata, you must migrate to the newly provided MySQL 5.5 packages.

Future security advisories will be provided only for MySQL 5.5.

The only trusted way to upgrade from MySQL 5.0 to MySQL 5.5 is by using 
MySQL 5.1 as an intermediate step. This is why the mysql51* Software 
Collection packages are provided. Note that the MySQL 5.1 packages are 
not supported and are provided only for the purposes of migrating to 
MySQL 5.5. You should not use the mysql51* packages on any of your 
production systems.

Because the mysql51 and mysql55 Software Collections do not conflict 
with each other, or any mysql packages, users can install mysql51 and 
mysql55 Software Collections together with mysql packages.

We have placed the relevant mysql packages within the Scientific Linux 5 
security tree to facilitate this upgrade in advance of any actual 
security errata.  Giving you the time to test this migration should 
result in you being better prepared for a time when you must perform it 
to maintain your system security.

Specific instructions for this migration are provided by upstream at:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Deployment_Guide/ch-Migrating_from_MySQL_5.0_to_MySQL_5.5.html


-- 
Pat Riehecky

Scientific Linux developer
http://www.scientificlinux.org/