Each and every virtual or dedicated hosting machine has its own Operating System and functions separately from the hosting servers of other customers. Updating the OS is frequently overlooked, but doing that might have lots of advantages for your sites. The most essential reason to employ the most up-to-date version is that patches are typically released to repair security holes inside the Os code, so if you do not install the updates, you risk people with harmful intentions to use these holes and to gain access to your content. Operating system updates are also released for improved efficiency of the system as a whole and for better compatibility with the hardware available on the market, which can immediately affect the efficiency of your sites. If the performance and the security of your scripts is the reason to update them, you might also know that their latest versions require an updated Operating System so as to function effectively, therefore keeping the Operating system up-to-date is always recommended.