Additionally, other functions may have also changed.You most likely won’t break your system if you don’t update your kernel for this exact reason, but sooner or later you’ll find programs and other packages that require a certain version of the kernel.While this is also true, that margin is rather slim, and only people who run servers or other important systems really need to be cautious.For most normal consumer-type users, updating your kernel outweighs those issues by a lot.Out of all the drivers being updated, the graphics drivers are probably those that you’ll notice the most, as every refresh usually adds a bit more performance.While it’s always possible to go the proprietary route, knowing that the open source drivers keep getting better and better is good too.
Some people argue that constantly updating the kernel actually decreases the overall system stability because you’ll be running on a kernel that you’ve never used, so you cannot assume that it will work as well as the kernel you were previously running on.
If a hacker manages to get into the kernel, a lot of damage can be done or the system simply crashes.
Those are inconveniences that are easily avoided with up-to-date kernels.
For consumer-type users, the benefits that come along with it far outweigh the risks.
Additionally, each kernel that you update to will have been tested for at least a couple of days by developers and test users to ensure that it runs without a hitch.