A virtual or a dedicated hosting machine is a standalone machine, that has its own Os and always keeping the latter up-to-date is a vital, though underestimated task. Not simply can an update improve the performance of your sites, but it can also save you lots of issues later on. An update can be released for a variety of reasons, the most frequent being to fix newly found security holes, which may permit third-party people to access and change the content which you have on the hosting machine. You may also see an improved functionality of your web programs as updates can also be released for better compatibility between the Os and the configuration it functions on so as to get the most out of the hardware. In addition, if you keep your apps up-to-date, they could need a later OS version that will have the required software dependencies and will allow them to operate effectively.