Recent changes are updated for the proposed modification to use a fission plate converter and a matching filter/moderator assembly in a newly designed beam shutter to enhance the epithermal neutron beam for patient irradiations during boron neutron capture therapy (BNCT) at the Brookhaven Medical Research Reactor, Brookhaven National Laboratory. Engineering design of the new beam shutter system has been completed, and design review is under way. With this upgrade, the epithermal neutron flux could be increased up to seven times higher than the present beam, and the fast-neutron dose per epithermal neutron fluence could be reduced to near half. Such an enhanced epithermal neutron beam would increase the effectiveness of clinical BNCT by allowing increased doses to the tumor with similar or lesser doses to normal tissues.