Outdated versions of software programs may have security flaws and your PC can be comrpomised by having old versions of applications installed.
It is hard for one to monitor every program and if it has a new version released. Rarely developers make their products with integrated update monitoring features. SoftPlanet Software Assistant. will do it for you.
New features. Sometimes you can miss out the great new features of the software products that you use just because you do not have the latest version on your computer.