Each virtual or dedicated hosting server has its own Operating System and operates separately from the servers of other customers. Updating the OS is frequently ignored, but doing that may have lots of advantages for your sites. The most significant reason to use the newest version is that patches are typically released to repair security holes inside the Operating System code, so if you don't install the updates, you risk people with destructive intentions to take advantage of these holes and to get access to your content. Operating system updates are also released for enhanced functionality of the system overall and for much better compatibility with the hardware on the market, which can instantly impact the efficiency of your internet sites. If the performance and the security of your scripts is the reason to update them, you may also find out that their most up-to-date versions require an updated Operating System in order to function effectively, consequently keeping the Operating system up-to-date is always recommended.