The Guile core distribution:

Gary Houston contributed a new, more efficient implementation of I/O ports,
    and hacked on (ice-9 expect).
Michael Livshin implemented Dybvig's Guardians.
Russ McManus contributed a command-line argument parser (ice-9 getopt-long).
Ken Raeburn made Guile use `const' in some appropriate places.
Greg Harvey made readline highlight matching parenthesis.

Bug reports and fixes from:

        Greg Badros
     Etienne Bernard
        Brad Bowman
        Karl Eichwalder
         Jay Glascoe
	 Ian Grant
        Eric Hanchrow
        Greg Harvey
	Dirk Herrmann
    Johannes Hjorth
     Charbel Jacquin
     Michael Livshin
       David Lutterkort
   Christian Lynbech
        Russ McManus
	Eric Moore
     Nicolas Neuss
   Thien-Thi Nguyen
     Richard Polton
         Ken Raeburn
     Telford Tendys
         Jon Trowbridge
     Bernard Urban
         Jim Wilson

Also, thanks to:
- Craig Brozefsky, for his work on the Guile mailing list web archives
- Pat Eyler, for his continuing work on the Guile web pages