Similar to the standards patches and updates service that Microsoft provides, independent manufacturers of your PC parts such as your video card, BIOS and network cards offer occasional updates to address issues such as driver incompatibilities and crashes that stem from the use of incompatible drivers.
Now these updates do not solely cater towards people encountering problems with the drivers. Updating them can also help stabilize your system resources but some could care less. Unless the time comes you consider formatting your computer for one reason or another, these driver updates can come in handy.
But the thing is, not all people are aware of these updates. You may say that they come out only by accident or if you happen to sign up with the actual hardware vendor. As a whole these updates have minimal impact but if the old drivers were giving you problems, then it is best to check out the updated drivers that are free for use by anyone normally on the vendor website.
So if you want to avoid the problems of finding out later on that your current drivers do have bugs that need fixing, maybe it would be best to download the updated drivers and override the old ones. It doesn’t take much effort although make sure you can roll back the drivers in case issues suffice. Remember that upgrading and updating are constant. Latest versions do not always mean they will be the last.