A virtual or a dedicated hosting machine is a standalone machine, that has its own Operating System and always keeping the latter up-to-date is a crucial, although underestimated task. Not only can an update enhance the functionality of your websites, but it could also save you lots of troubles down the road. An update could be released for a variety of reasons, the most common being to fix newly discovered security holes, which may allow third-party individuals to access and change the content which you have on the server. You might also see an improved performance of your web apps since updates could also be released for better compatibility between the Operating System and the configuration it functions on as a way to get the most out of the hardware. Moreover, if you keep your applications up-to-date, they may also need a later Operating system version which will have the necessary software dependencies and will permit them to function adequately.