A virtual or a dedicated hosting server is a standalone machine, that has its own Operating System and maintaining the latter up-to-date is an important, though underrated task. Not only can an update improve the functionality of your internet sites, but it can also save you a lot of issues later on. An update could be released for a variety of reasons, the most common being to fix newly discovered security holes, which may permit third-party people to access and modify the content that you have on the server. You will also see an improved overall performance of your web applications because updates may also be released for better compatibility between the Operating System and the configuration it functions on so that you can get the most out of the hardware. Additionally, if you keep your apps up-to-date, they might need a later Operating system version which will have the necessary software dependencies and will allow them to work adequately.