Index: TODO
===================================================================
diff -u -r2152f4606b7c4e81fd18018c7c43bf29961a9d1b -rfb2161a532110a28aba2553b2fa1cae60ac2d475
--- TODO	(.../TODO)	(revision 2152f4606b7c4e81fd18018c7c43bf29961a9d1b)
+++ TODO	(.../TODO)	(revision fb2161a532110a28aba2553b2fa1cae60ac2d475)
@@ -3778,7 +3778,18 @@
 - extended regression test
 - removed "namespace import" in objectsystem test
 
+nsf.c:
+- Reform of subclass/superclass handling. 
+  * unifying transitive subclass handling
+  * localizing and documenting caching of subclass/superclass lists
+  * eliminating repetitious computation of subclass lists
+  * refactored code, renamed some functions to better refelect their purpose
+  * improved documentation
+- fixed a potential crash for class deletion triggering implicit deletions 
+  further deletions referencing the parent class
+- extended regression test
 
+
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 TODO: