The Guile core distribution:
+Mikael Djurfeldt contributed core support for GOOPS, a CLOS-like object
+ system for Guile.
+Gary Houston contributed a more efficient and portable 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 sure I didn't lose any patches, and made readline
+ highlight matching parenthesis.
+
Bug reports and fixes from:
+ Greg Badros
Etienne Bernard
+ John Bley
Brad Bowman
Karl Eichwalder
+ Mark Elbrecht
Jay Glascoe
Ian Grant
Eric Hanchrow
Greg Harvey
+ Dirk Herrmann
+ Johannes Hjorth
Charbel Jacquin
+ David Kaelbling
+ Valdis Kletnieks
+ Michael Livshin
+ David Lutterkort
Christian Lynbech
Russ McManus
+ Eric Moore
Nicolas Neuss
Thien-Thi Nguyen
Richard Polton
+ Ken Raeburn
+ Mikael Ståldal
Telford Tendys
+ Jon Trowbridge
Bernard Urban
+ Sebastien Villemot
Jim Wilson
Also, thanks to: