Each virtual or dedicated hosting machine has its own Operating System and operates separately from the servers of other clients. Updating the Operating system is often ignored, but doing that might have quite a lot of benefits for your sites. The most essential reason to employ the most up-to-date version is that patches are frequently released to repair security holes within the Operating System code, so if you don't install the updates, you risk individuals with malicious intentions to exploit these holes and to access your content. Operating system updates are also released for improved functionality of the system as a whole and for better compatibility with the hardware on the market, which could instantly influence the performance of your websites. If the performance and the security of your scripts is the reason to update them, you could also know that their most recent versions require an updated Os to be able to operate effectively, consequently keeping the Operating system up-to-date is always a wise idea.