As of July 1st 2016 Web Host Pro has added CentOS 7 to the available operating systems for all VPS plans. Our automated system will allow you to remove any existing OS and add CentOS 5, 6, or 7 in real time. If you like this OS added to a new VPS please mention it in the notes when signing up. This will allow for more compatibility and performance when available. We will still keep CentOS 5 and 6 available for legacy services that are not ready for the new CentOS versions.
There is no a major difference in CentOS 7 vs 6. The most substantial changes were in the kernel architecture which will allow for easier future upgrades and a longer life support. There a couple minor changes that can make certain scripts and apps not work. We highly suggest contacting any script or app makers you work with to make sure the new OS will not have any compatibility issues with your website.
With that said, if the your website will not have any issues, we do recommend choosing CentOS 7 for the better performance and a longer support channel.
As a VPS customer you can log into your VPS admin section to change your OS at anytime.
For VPS prices and more information please click here: VPS Plans
If you have any questions or need help adding the new OS please contact us anytime via chat, tickets, phone, or Skype support.