Each and every virtual or dedicated hosting machine has its own Os and works separately from the servers of other customers. Updating the Operating system is usually ignored, but doing that could have quite a lot of advantages for your internet sites. The most essential 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 individuals with malicious intentions to use these holes and to get access to your content. OS updates are also released for much better performance of the system as a whole and for better compatibility with the hardware on the market, which could instantly affect the functionality of your sites. If the performance and the security of your scripts is the reason to update them, you could also discover that their most recent versions require an updated Operating System in order to operate properly, therefore keeping the OS up-to-date is always a good idea.
