Each and every virtual or dedicated hosting machine has its own Operating System and operates separately from the hosting servers of other customers. Updating the Operating system is often overlooked, but doing that could have quite a lot of advantages for your websites. The most important reason to employ the latest version is that patches are frequently released to repair security holes inside the Os code, so if you don't install the updates, you risk individuals with destructive intentions to take advantage of these holes and to access your content. Operating system updates are also released for improved functionality of the system overall and for much better compatibility with the hardware available on the market, which could directly affect the functionality of your websites. If the performance and the security of your scripts is the reason to update them, you may also discover that their most up-to-date versions require an updated Os so as to function properly, so keeping the OS up-to-date is always a good idea.