A virtual or a dedicated hosting machine is a standalone machine, that has its own Os and keeping the latter up-to-date is a crucial, albeit underrated task. Not only can an update boost the overall performance of your websites, but it can also save you a lot of issues in the future. An update may be released for several reasons, the most common being to fix newly found security holes, which may enable third-party individuals to access and change the content you have on the server. You can also see an improved efficiency of your web programs because updates could also be released for better compatibility between the Operating System and the configuration it functions on in order to get the most out of the hardware. Also, if you keep your applications up-to-date, they might need a later Operating system version which will have the necessary software dependencies and will enable them to work effectively.