A virtual or a dedicated hosting machine is a standalone machine, that has its own Operating System and keeping the latter up-to-date is a vital, albeit underestimated task. Not only can an update enhance the performance of your sites, but it will also save you a lot of troubles down the road. An update may be released for several reasons, the most prevalent being to fix recently identified security holes, which may allow third-party individuals to access and change the content you have on the hosting server. You might also see an improved performance of your web applications because updates may also be released for better compatibility between the Os 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 require a later OS version which will have the needed software dependencies and will permit them to work effectively.