diff --git a/README.in b/README.in
index 5eb8e0df3..65fd6cccf 100644
--- a/README.in
+++ b/README.in
@@ -289,6 +289,13 @@ Relevant information for developers with existing Clutter applications
 wanting to port to newer releases (see NEWS for general information on new
 features).
 
+Release Notes for Clutter 1.26
+-------------------------------------------------------------------------------
+
+• The evdev backend specific ClutterPointerConstrainCallback type was changed
+  to include not only the target position but also the previous position. This
+  is an API change, and will require a version check in any caller code.
+
 Release Notes for Clutter 1.24
 -------------------------------------------------------------------------------
 
diff --git a/clutter/evdev/clutter-device-manager-evdev.c b/clutter/evdev/clutter-device-manager-evdev.c
index 53aa8480d..df9cd19b4 100644
--- a/clutter/evdev/clutter-device-manager-evdev.c
+++ b/clutter/evdev/clutter-device-manager-evdev.c
@@ -452,7 +452,10 @@ new_absolute_motion_event (ClutterInputDevice *input_device,
   if (manager_evdev->priv->constrain_callback)
     {
       manager_evdev->priv->constrain_callback (seat->core_pointer,
-                                               us2ms (time_us), &x, &y,
+                                               us2ms (time_us),
+                                               seat->pointer_x,
+                                               seat->pointer_y,
+                                               &x, &y,
 					       manager_evdev->priv->constrain_data);
     }
   else
diff --git a/clutter/evdev/clutter-evdev.h b/clutter/evdev/clutter-evdev.h
index dca093d5a..be8748f96 100644
--- a/clutter/evdev/clutter-evdev.h
+++ b/clutter/evdev/clutter-evdev.h
@@ -82,6 +82,8 @@ void  clutter_evdev_reclaim_devices (void);
  */
 typedef void (*ClutterPointerConstrainCallback) (ClutterInputDevice *device,
 						 guint32             time,
+						 float               prev_x,
+						 float               prev_y,
 						 float              *x,
 						 float              *y,
 						 gpointer            user_data);