A virtual or a dedicated hosting server is a standalone machine, that has its own Operating System and always keeping the latter up-to-date is an essential, although underestimated task. Not only can an update enhance the overall performance of your internet sites, but it can also save you lots of troubles later on. An update can be released for a variety of reasons, the most widespread being to fix recently found security holes, which may permit third-party people to access and change the content which you have on the hosting server. You may also see an improved overall performance of your web apps as updates could also be released for better compatibility between the Operating System and the configuration it works on in order to get the most out of the hardware. Additionally, if you keep your apps up-to-date, they may also require a later Operating system version which will have the necessary software dependencies and will allow them to function adequately.