Just a quick update that CentOS 7.1 is now available for installation for all Linux VPS instances. It is now the default installation option for new Linux instances, and it can also be used to reinstall existing instances through the VPS Panel (https://panel.solvps.com/).
CentOS 7.1 is the latest stable release of CentOS, the community-supported version of Red Hat Enterprise Linux, and our choice Linux server operating system.
Build a CentOS VPS instance now: Linux VPS Hosting
Reinstall an existing VPS instance: VPS Panel