A virtual or a dedicated hosting server is a standalone machine, which has its own Os and always keeping the latter up-to-date is an essential, although underestimated task. Not only can an update enhance the performance of your websites, but it could also save you lots of troubles later on. An update could be released for a number of reasons, the most frequent being to fix recently found security holes, which may permit third-party people to access and modify the content you have on the hosting server. You might also see an improved efficiency of your web programs since updates could also be released for better compatibility between the Os and the configuration it operates on so as to get the most out of the hardware. Also, if you keep your applications up-to-date, they could need a later Operating system version that will have the required software dependencies and will enable them to function effectively.