A virtual or a dedicated server is a standalone machine, which has its own Os and always keeping the latter up-to-date is a crucial, though underrated task. Not simply can an update improve the performance of your internet sites, but it can also save you a great deal of troubles down the road. An update could be released for a lot of reasons, the most common being to fix recently found security holes, which may permit third-party individuals to access and alter the content which you have on the server. You will also see an improved efficiency of your web apps as updates can also be released for better compatibility between the Os and the configuration it works on so as to 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 needed software dependencies and will permit them to function effectively.