[en] The CEBAF beam transport system consists of six subsystems: injector optics, linac lattices, spreaders, extraction regions, recirculation arc beam lines, and recombiners. In this report we describe recent modifications to the beam transport system design. These include: detailing of injector optics and inclusion of an isochronous injection chicane in order to avoid bunch lengthening during injection, use of a ''staircase'' spreader/recombiner design in order to reduce error sensitivity, use of 1 GHz rf separators for separation and extraction of multiple beams to reduce emittance dilution, and modification of the beam transport system to accommodate a fifth recirculation of the beam. 7 refs., 5 figs