--- a/ImmutableString.st	Mon Oct 29 17:05:17 2012 +0000
+++ b/ImmutableString.st	Mon Oct 29 22:07:56 2012 +0000
@@ -155,6 +155,12 @@
     "Created: / 3.8.1998 / 14:47:58 / cg"
 ! !
 
+!ImmutableString methodsFor:'queries'!
+
+isImmutable
+    ^ true
+! !
+
 !ImmutableString methodsFor:'specials'!
 
 become:anotherObject
@@ -180,13 +186,13 @@
 !ImmutableString class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/ImmutableString.st,v 1.12 2012/07/19 17:34:43 stefan Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ImmutableString.st,v 1.13 2012/10/16 15:11:35 cg Exp $'
 !
 
 version_CVS
-    ^ '§Header: /cvs/stx/stx/libbasic/ImmutableString.st,v 1.12 2012/07/19 17:34:43 stefan Exp §'
+    ^ '§Header: /cvs/stx/stx/libbasic/ImmutableString.st,v 1.13 2012/10/16 15:11:35 cg Exp §'
 !
 
 version_SVN
-    ^ '$Id: ImmutableString.st 10829 2012-07-25 08:45:15Z vranyj1 $'
+    ^ '$Id: ImmutableString.st 10858 2012-10-29 22:07:56Z vranyj1 $'
 ! !