Yes, generally firmware versions are generally cumulative. That said, when you go to the firmware page, it has the specifics on any firmware, including any restrictions - you should always read that!
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
