Typically, the wisdom on the forum is - if it ain't broke, don't fix it. Unless you know that this update is something you need or will give you some sort of additional functionality that you want, don't do it. There is, IMHO, absolutely no point in updating just for updating's sake. It's all too easy to screw up something that was working just fine. Others may have a different opinion.
Fujitsu Lifebook P727 laptop review