Where do I get new FPGA versions 020205??

the 7.1.4 for CNUT has an old FPGA version (051104) and the units that were shipped to me last are (020205). WHere can I download this new version for the BH units that I am using…because I replaced one side of a BH link with a new unit and I am having problems that this disconnects sporadically. Does anyone have a solution?