A virtual or a dedicated hosting server is a standalone machine, which has its own Operating System and always keeping the latter up-to-date is a vital, although underrated task. Not simply can an update improve the general performance of your internet sites, but it will also save you lots of problems in the future. An update could be released for many different reasons, the most widespread being to fix newly found security holes, which may enable third-party people to access and alter the content you have on the server. You can also see an improved functionality of your web apps as updates can also be released for better compatibility between the Operating System and the configuration it works on so that you can get the most out of the hardware. Moreover, if you keep your apps up-to-date, they might also require a later OS version that will have the needed software dependencies and will allow them to operate effectively.