diff --git a/TODO b/TODO
index 278e5bb24..d05e675e1 100644
--- a/TODO
+++ b/TODO
@@ -4,6 +4,17 @@
 
 ** [ttn] add test-suite based on Examples
 
+[open] The behavior of SWIG with respect to call/return-by-value needs
+       to be verified for all language modules.   Previously, the
+       parser automatically performed the conversion of pass-by-value
+       to pass-by-reference.  Unfortunately, this confused typemap
+       handling and other aspects of the system.   I have removed
+       this behavior.  However, in doing so, the handling of user
+       defined types is passed on to the language modules.
+
+[open] All of the SWIG 1.1p5 examples need to be verified.  Changes
+       in type handling and internal data structures may have broken
+       a variety of things.
 
 * for 1.3a5 release