Each virtual or dedicated server has its own Operating System and works separately from the servers of other clients. Updating the Operating system is often neglected, but doing that may have a wide range of benefits for your sites. The most important reason to use the latest version is that patches are frequently released to deal with security holes within the Operating System code, so if you do not install the updates, you risk individuals with malicious intentions to exploit these holes and to gain access to your content. OS updates are also released for enhanced functionality of the system in general and for far better compatibility with the hardware on the market, which can immediately influence the performance of your websites. If the performance and the security of your scripts is the reason to update them, you may also know that their most up-to-date versions require an updated Os to be able to function effectively, therefore keeping the Operating system up-to-date is always wise.