ticket #43 : MySQL 5 support http://vtiger.fosslabs.com/cgi-bin/trac.cgi/ticket/43 > vtiger CRM 5 will support mysql 5 and PHP 5 too. > Hence, if you plan to have a 5.0 compatible code in the 4.2.x version, > it will be helpful while merging the changes to the 5.0 base.