Fix GtkTooltip destroy the custom widget

Fixed 576091, Custom_widget does not get destroyed when the tooltip
goes away. Add a release note for this fix.

1 files changed, 8 insertions, 0 deletions

diff --git a/README.in b/README.in
index 6d81355472..3e2d7da727 100644
--- a/README.in
+++ b/README.in
@@ -27,6 +27,14 @@ Installation
 See the file 'INSTALL'
 
 
+Release notes for 2.18
+======================
+
+* gtk_tooltip_set_custom now accept a NULL custom_widget to unset the
+  old custom_widget. Custom_widget does not get destroyed when the
+  tooltip goes away.
+
+
 Release notes for 2.16
 ======================