This Engine Yard technology stack is based on the Ubuntu OS and applies to languages supported in the new Engine Yard UI.
Each component in the stack has been customized and optimized over thousands of developer hours by engineers at Engine Yard; our engineers include leading Ruby on Rails and PHP contributors, expert cluster engineers, and seasoned DBAs for web server performance, database efficiency, and long-term scalability. We meticulously test and fully integrate each new component and component update to provide reliability, security, and compatibility within the stack.
The versions listed below are the current-state. We will continually update this list with the latest verified versions.