Each and every virtual or dedicated hosting server has its own Os and works independently from the hosting servers of other customers. Updating the OS is usually neglected, but doing that could have a wide range of advantages for your websites. The most essential reason to use the latest version is that patches are frequently released to repair security holes in the Os code, so if you do not install the updates, you risk individuals with harmful intentions to exploit these holes and to gain access to your content. Operating system updates are also released for much better functionality of the system overall and for better compatibility with the hardware on the market, which can directly influence the performance of your websites. If the efficiency and the security of your scripts is the reason to update them, you may also know that their newest versions require an updated Os to be able to function properly, thus keeping the Operating system up-to-date is always a wise idea.