diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index c433f7b51c..dbe4e423e8 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -4402,6 +4402,7 @@ gtk_cell_area_get_style_detail
 gtk_cell_area_get_cell_allocation
 gtk_cell_area_get_cell_at_position
 gtk_cell_area_create_context
+gtk_cell_area_copy_context
 gtk_cell_area_get_request_mode
 gtk_cell_area_get_preferred_width
 gtk_cell_area_get_preferred_height_for_width
@@ -4458,6 +4459,8 @@ gtk_cell_area_context_allocate
 gtk_cell_area_context_reset
 gtk_cell_area_context_get_preferred_width
 gtk_cell_area_context_get_preferred_height
+gtk_cell_area_context_get_preferred_height_for_width
+gtk_cell_area_context_get_preferred_width_for_height
 gtk_cell_area_context_get_allocation
 gtk_cell_area_context_push_preferred_width
 gtk_cell_area_context_push_preferred_height
diff --git a/gtk/gtk.symbols b/gtk/gtk.symbols
index 8489ee1399..ce41e59b0e 100644
--- a/gtk/gtk.symbols
+++ b/gtk/gtk.symbols
@@ -386,11 +386,14 @@ gtk_cell_area_context_allocate
 gtk_cell_area_context_get_allocation
 gtk_cell_area_context_get_area
 gtk_cell_area_context_get_preferred_height
+gtk_cell_area_context_get_preferred_height_for_width
 gtk_cell_area_context_get_preferred_width
+gtk_cell_area_context_get_preferred_width_for_height
 gtk_cell_area_context_get_type G_GNUC_CONST
 gtk_cell_area_context_push_preferred_width
 gtk_cell_area_context_push_preferred_height
 gtk_cell_area_context_reset
+gtk_cell_area_copy_context
 gtk_cell_area_create_context
 gtk_cell_area_event
 gtk_cell_area_foreach
diff --git a/gtk/gtkcellarea.h b/gtk/gtkcellarea.h
index 61579221fb..008b8bb10f 100644
--- a/gtk/gtkcellarea.h
+++ b/gtk/gtkcellarea.h
@@ -119,6 +119,8 @@ struct _GtkCellArea
  * class but can be overridden to apply some custom attributes.
  * @create_context: Creates and returns a class specific #GtkCellAreaContext to store cell 
  * alignment and allocation details for a said #GtkCellArea class.
+ * @copy_context: Creates a new #GtkCellAreaContext in the same state as the passed @context
+ * with any cell alignment data and allocations in tact.
  * @get_request_mode: This allows an area to tell its layouting widget whether it prefers to 
  * be allocated in %GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH or %GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT mode.
  * @get_preferred_width: Calculates the minimum and natural width of the area's cells
diff --git a/gtk/gtkcellareacontext.h b/gtk/gtkcellareacontext.h
index d2b462cfce..3c3522bc59 100644
--- a/gtk/gtkcellareacontext.h
+++ b/gtk/gtkcellareacontext.h
@@ -58,6 +58,10 @@ struct _GtkCellAreaContext
  * recalculated at gtk_cell_area_render() time.
  * @reset: Clear any previously stored information about requested and allocated
  * sizes for the context.
+ * @get_preferred_height_for_width: Returns the aligned height for the given width
+ * that context must store while collecting sizes for it's rows.
+ * @get_preferred_width_for_height: Returns the aligned width for the given height
+ * that context must store while collecting sizes for it's rows.
  */
 struct _GtkCellAreaContextClass
 {
@@ -84,6 +88,8 @@ struct _GtkCellAreaContextClass
   void (*_gtk_reserved2) (void);
   void (*_gtk_reserved3) (void);
   void (*_gtk_reserved4) (void);
+  void (*_gtk_reserved5) (void);
+  void (*_gtk_reserved6) (void);
 };
 
 GType        gtk_cell_area_context_get_type              (void) G_GNUC_CONST;