Not immediately no. But if you decide to stick with an older OS for a longer time - you end up in an unbearable situation where you can't use newer plugins or libraries because they don't feel it's important to support OS:es that's just a few years old. If the software is good enough, you might even keep a computer with an older OS just to run that.
Sorry for the OT - but this update OS mania and new versions every year got to stop. It just creates problems.
/C