A virtual or a dedicated server is a standalone machine, that has its own Os and maintaining the latter up-to-date is an important, albeit underestimated task. Not simply can an update enhance the general performance of your websites, but it could also save you lots of troubles down the road. An update can be released for a variety of reasons, the most frequent being to fix recently found security holes, which may allow third-party individuals to access and modify the content that you have on the server. You will also see an improved functionality of your web apps as updates can also be released for better compatibility between the Os and the configuration it works on as a way to get the most out of the hardware. Moreover, if you keep your programs up-to-date, they may also require a later OS version that will have the necessary software dependencies and will enable them to function properly.