No. Try the original bios first. Often the original bios will overclock better. If you get a stable overclock, I would never change the bios.
I agree that, only update if you see that an updated BIOS solves any of the problems that YOU are experiencing. Otherwise stay with what you have.
I have to comment on o1die's note though: you have it the wrong way around. Often the latest BIOS will overclock better, as there are many bugs and incompatibilities on the original ones. My current board being the best example of this "rush to the market even if not ready" attitude.