Description: Disable notifications about outdated guest additions.
Author: Felix Geyer <fgeyer@debian.org>

Index: virtualbox/src/VBox/Additions/x11/VBoxClient/hostversion.cpp
===================================================================
--- virtualbox.orig/src/VBox/Additions/x11/VBoxClient/hostversion.cpp
+++ virtualbox/src/VBox/Additions/x11/VBoxClient/hostversion.cpp
@@ -45,6 +45,7 @@
 
 static int showNotify(const char *pszHeader, const char *pszBody)
 {
+    return VINF_SUCCESS;
     int rc;
 # ifdef VBOX_WITH_DBUS
     DBusConnection *conn;