ROSA Enterprise Desktop X3 (RED X3) is a final version of our non free desktop distribution based on a popular free ROSA Desktop Fresh KDE 8.1 with the additional stability and technical support assurances. The distro is recommended for use in a Small / Home Office and Small To Medium Business levels, where stability and guaranteed functionality are preferred over the latest software versions and innovations. All the updates, excluding the security and bug fixing updates, are first thoroughly tested in the real life ROSA Desktop Fresh environments.