Nikon released an updated version of the latest Capture NX2 2.4.7 with added Yosemite support. Please note that no other changes were made except compatibility with the latest MAC OS. Nikon Capture NX2 2.4.7 was already released in April, 2014.
Nikon Capture NX was discontinued last year and replaced by new NX-D (made by SilkyPix).