[otrs] Upgrade 2.0.1 > 2.2.6

Hello, We currently OTRS v2.0.1 and we would like to make an upgrade to v2.2.6 ! What are the changes to the MySQL Backup to import our BDD v2.0.1 in the new BDD v2.2.6 ? I cant find information on FAQ. Can you help me ? Benoit DAVAUT Adoptez l'éco-attitude. N'imprimez ce mail que si c'est vraiment nécessaire.