diff --git a/Graphics/UI/Gtk/ModelView/Gtk2HsStore.c b/Graphics/UI/Gtk/ModelView/Gtk2HsStore.c
--- a/Graphics/UI/Gtk/ModelView/Gtk2HsStore.c
+++ b/Graphics/UI/Gtk/ModelView/Gtk2HsStore.c
@@ -462,7 +462,6 @@
   WHEN_DEBUG(g_debug("calling gtk2hs_store_iter_next\t\t(%p, %p)\n", tree_model, iter));
   Gtk2HsStore *store = (Gtk2HsStore *) tree_model;
   g_return_val_if_fail (GTK2HS_IS_STORE (tree_model), FALSE);
-  g_return_val_if_fail (iter->stamp == store->stamp, FALSE);
 
   gboolean result = gtk2hs_store_iter_next_impl(store->impl, iter);
   if (result) iter->stamp = store->stamp;
@@ -489,7 +488,6 @@
   WHEN_DEBUG(g_debug("calling gtk2hs_store_iter_children\t(%p, %p, %p)\n", tree_model, iter, parent));
   Gtk2HsStore *store = (Gtk2HsStore *) tree_model;
   g_return_val_if_fail (GTK2HS_IS_STORE (tree_model), FALSE);
-  g_return_val_if_fail (parent == NULL || parent->stamp == store->stamp, FALSE);
 
   gboolean result = gtk2hs_store_iter_children_impl(store->impl, iter, parent);
   if (result) iter->stamp = store->stamp;
@@ -604,7 +602,6 @@
   WHEN_DEBUG(g_debug("calling gtk2hs_store_ref_node\t\t(%p, %p)\n", tree_model, iter));
   Gtk2HsStore *store = (Gtk2HsStore *) tree_model;
   g_return_if_fail (GTK2HS_IS_STORE (tree_model));
-  g_return_if_fail (iter->stamp == store->stamp);
 
   gtk2hs_store_ref_node_impl(store->impl, iter);
 }
diff --git a/gtk3.cabal b/gtk3.cabal
--- a/gtk3.cabal
+++ b/gtk3.cabal
@@ -1,5 +1,5 @@
 Name:           gtk3
-Version:        0.12.5.5
+Version:        0.12.5.6
 License:        LGPL-2.1
 License-file:   COPYING
 Copyright:      (c) 2001-2010 The Gtk2Hs Team
@@ -391,35 +391,35 @@
     main-is: ActionMenu.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-buttonBox
     hs-source-dirs: demo/buttonbox
     main-is: ButtonBox.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-carsim
     hs-source-dirs: demo/carsim
     main-is: CarSim.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers, time, cairo
+    build-depends: gtk3==0.12.5.6, base, transformers, time, cairo
 
 Executable gtk2hs-demo-progress
     hs-source-dirs: demo/concurrent
     main-is: Progress.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-progressThreadedRTS
     hs-source-dirs: demo/concurrent
     main-is: ProgressThreadedRTS.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
     ghc-options: -threaded
 
 Executable gtk2hs-demo-fastDraw
@@ -427,68 +427,68 @@
     main-is: FastDraw.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers, array, cairo
+    build-depends: gtk3==0.12.5.6, base, transformers, array, cairo
 
 Executable gtk2hs-demo-fonts
     hs-source-dirs: demo/fonts
     main-is: Fonts.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base
+    build-depends: gtk3==0.12.5.6, base
 
 Executable gtk2hs-demo-builder
     hs-source-dirs: demo/gtkbuilder
     main-is: GtkBuilderTest.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-helloworld
     hs-source-dirs: demo/hello
     main-is: World.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-layout
     hs-source-dirs: demo/inputmethod
     main-is: Layout.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers, cairo
+    build-depends: gtk3==0.12.5.6, base, transformers, cairo
 
 Executable gtk2hs-demo-menudemo
     hs-source-dirs: demo/menu
     main-is: MenuDemo.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-combodemo
     hs-source-dirs: demo/menu
     main-is: ComboDemo.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-notebook
     hs-source-dirs: demo/notebook
     main-is: Notebook.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-statusIcon
     hs-source-dirs: demo/statusicon
     main-is: StatusIcon.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers
 
 Executable gtk2hs-demo-arabic
     hs-source-dirs: demo/unicode
     main-is: Arabic.hs
     if flag(build-demos)
       buildable: True
-    build-depends: gtk3==0.12.5.5, base, transformers
+    build-depends: gtk3==0.12.5.6, base, transformers