What were the AC 'box rules' going into this regatta?

Seems they were allowed to change their foils, it was mentioned several times in that last race that Oracle had 'added some tip length' to their light air foils.

Was there a restriction on max foil size?

Still, I thought the last event (2013 in SFO) was much more exciting with more wind and more high speed sailing, (45kts vs 22 in Bermuda) with more lead changes, etc. and the tide in/out of the bay made picking the right side of the course so much more important as well.

This light air regatta in Bermuda about put me to sleep on most races. I wonder exactly where the Kiwi's will hold the next AC regatta.