DWU2 wrote:
Before updating firmware, visit the vendor's site and ascertain what the updates accomplish. Do they fix a bug or problem you're experiencing? Do they add a new feature you're possibly going to use? If not, perhaps you need not bother. I've see some firmware updates that address very specific camera/lens or accessory incompatibilities that may not apply to you, or are only relevant to astrophotography or other special uses.
In my opinion one should always update firmware. Often times hidden bug fixes or improvements are included that the manufacturer does not mention.