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 OS is usually overlooked, but doing that may have quite a lot of advantages for your websites. The most essential reason to employ the latest version is that patches are frequently released to fix security holes inside the Operating System code, so if you don't install the updates, you risk individuals with destructive intentions to exploit these holes and to get access to your content. Operating system updates are also released for enhanced performance of the system in general and for better compatibility with the hardware on the market, which could instantly impact the functionality of your websites. If the performance and the security of your scripts is the reason to update them, you may also find out that their most recent versions require an updated Operating System so as to operate properly, so keeping the Operating system up-to-date is always a wise idea.