Index: TODO
===================================================================
diff -u -re67f194e31b8e0fb4f1312a3257088a94e598b0d -r96fd7ec7c3e09038f2ac706a0ded966c2125be74
--- TODO	(.../TODO)	(revision e67f194e31b8e0fb4f1312a3257088a94e598b0d)
+++ TODO	(.../TODO)	(revision 96fd7ec7c3e09038f2ac706a0ded966c2125be74)
@@ -3698,7 +3698,16 @@
   invocaton of contains.
 - extended regression test
 
+- nx.tcl: don't use mixins in method "contains", but remap the new
+  implementation. If there are ten thousands of classes defined,
+  adding mixins to the root meta-class degrades linearly on the number
+  of classes defined (the mixin paths for all classes must be
+  invalidated). This might be a problem for frequent "contains"
+  invocations.
+- bup version numbers for nx, xotcl2 and nsf to 2.0b2
 
+
+
 TODO:
 
  - warnings for "numeric" names for args and nonpos-args?