The Alfresco website lists the currently supported stacks.
You can access the current Supported Platform information at: http://www.alfresco.com/services/subscription/supported-platforms.
This page provides detailed information on the operating system, database, and application server combinations that have been tested and certified.. These technology stacks have all been through the complete quality assurance and certification activities. By using one of the tested combinations, you can ensure that the environment you choose will work, scale, and perform.
If you have additional questions or feedback, please contact your Customer Success Manager or contact Alfresco Support.