+ giving SBCL (and CMU CL) its EQUALP hash tables.
+
+Douglas Crosher:
+ He continued to improve CMU CL after SBCL forked from it, creating
+ many patches which were directly applicable to SBCL. Notable examples
+ include fixes for various compiler bugs, the implementation of
+ CL:DEFINE-SYMBOL-MACRO, and a generalization of the type system's
+ handling of the CONS type to allow ANSI-style (CONS FOO BAR) types.
+
+Alexey Dejneka:
+ He has fixed many, many bugs. There's no single summary theme, but
+ he's fixed about a dozen different bugs in LOOP alone, and more
+ in the compiler itself. It appears that a lot of his fixes there
+ and elsewhere reflect systematic public-spiritedness, fixing bugs
+ as they show up in sbcl-devel or as archived in the BUGS file.
+
+Paul Dietz
+ He is in the process of writing a comprehensive test suite for the
+ requirements of the ANSI Common Lisp standard. Already, at the
+ halfway stage, it has caught many tens of bugs in SBCL, and provided
+ simple test cases for them.
+
+Nathan Froyd:
+ He has fixed various bugs, and also done a lot of internal
+ cleanup, not visible at the user level but important for
+ maintenance. (E.g. converting the PCL code to use LOOP instead
+ of the old weird pre-ANSI ITERATE macro so that the code can be
+ read without being an expert in ancient languages and so that we
+ can delete a thousand lines of implement-ITERATE macrology from
+ the codebase.)
+
+Matthias Hoelzl:
+ He reported and fixed COMPILE's misbehavior on macros.
+
+Espen S Johnsen:
+ He provided an ANSI-compliant version of CHANGE-CLASS for PCL.
+
+Frederik Kuivinen:
+ He showed how to implement the DEBUG-RETURN functionality.
+
+Arthur Lemmens:
+ He found and fixed a number of SBCL bugs while partially porting
+ SBCL to bootstrap under Lispworks for Windows
+
+Robert MacLachlan:
+ He has continued to answer questions about, and contribute fixes to,
+ the CMU CL project. Some of these fixes, especially for compiler
+ problems, has been invaluable to the CMU CL project and, by
+ porting, invaluable to the SBCL project as well.
+
+Pierre Mai:
+ He has continued to work on CMU CL since the SBCL fork, and also
+ patched code to SBCL to enable dynamic loading of object files
+ under OpenBSD.
+
+Eric Marsden:
+ Some of his fixes to CMU CL since the SBCL fork have been ported
+ to SBCL.
+
+Antonio Martinez-Shotton:
+ He has contributed a number of bug fixes and bug reports to SBCL.
+
+Dave McDonald:
+ He made a lot of progress toward getting SBCL to be bootstrappable
+ under CLISP.
+
+Gerd Moellman:
+ He has made many cleanups and improvements, small and large, in
+ CMU CL (mostly in PCL), which we have gratefully ported to SBCL. Of
+ particular note is his ctor MAKE-INSTANCE optimization, which is both
+ faster in the typical case than the old optimizations in PCL and
+ less buggy.
+
+William ("Bill") Newman:
+ He continued to maintain SBCL after the fork, increasing ANSI
+ compliance, fixing bugs, regularizing the internals of the
+ system, deleting unused extensions, improving performance in
+ some areas (especially sequence functions and non-simple vectors),
+ updating documentation, and even, for better or worse, getting
+ rid of various functionality (e.g. the byte interpreter).
+
+Kevin M. Rosenberg:
+ He provided the ACL-style toplevel, and a number of MOP-related bug
+ reports.
+
+Christophe Rhodes:
+ He ported SBCL to SPARC, made various port-related and SPARC-related
+ changes (like *BACKEND-SUBFEATURES*), made many fixes and
+ improvements in the compiler's type system, has essentially
+ completed the work to enable bootstrapping SBCL under unrelated
+ (non-SBCL, non-CMU-CL) Common Lisps, and contributed in other ways
+ as well.
+
+Stig Erik Sandoe:
+ He showed how to convince the GNU toolchain to build SBCL in a way
+ which supports callbacks from C code into SBCL.
+
+Brian Spilsbury:
+ He wrote Unicode-capable versions of SBCL's character, string, and
+ stream types and operations on them.
+
+Raymond Toy:
+ He continued to work on CMU CL after the SBCL fork, especially on
+ floating point stuff. Various patches and fixes of his have been
+ ported to SBCL.