This is a bug fix and general improvement release.  From the change log:

        - Incorporate local ports/categories into the INDEX by
          scanning Makefile.local for additions to $SUBDIR.  Mentioned
          on freebsd-ports@freebsd.org by Rong-En Fan <rafan (at)
          infor.org>

        - Clean up error messages, and factor out common progress
          counter code.

        - Add a new Category object type, and cope better with changes
          to categories (ie. ports being hooked up / unhooked from the
          tree).  Problem pointed out by Colin Percival <cperciva (at)
          freebsd.org>

        - Instead of calling perl to compile exactly the same bit of
          perl code from /usr/ports/Mk/bsd.ports.mk about 15,000 times
          (ie once per port) as a consequence of actually running
          'make describe', just call perl once, use make to print out
          the basic variables from the port and replicate the
          processing done ourselves.