Each and every virtual or dedicated hosting server has its own Operating System and works independently from the hosting machines of other clients. Updating the Operating system is usually neglected, but doing that could have quite a lot of advantages for your websites. The most important reason to employ the most up-to-date version is that patches are frequently released to deal with security holes in the Os code, so if you don't install the updates, you risk individuals with harmful intentions to use these holes and to access your content. Operating system updates are also released for much better functionality of the system in general and for far better compatibility with the hardware available on the market, which can directly influence the performance of your internet sites. If the functionality and the security of your scripts is the reason to update them, you could also discover that their latest versions require an updated Os to be able to function effectively, so keeping the Operating system up-to-date is always a wise idea.