[gtk+] Add state propagation changes to release notes

[Matthias Clasen <matthiasc src gnome org>]

commit 6743e41ce3643b6f969c318a81b120d4cb5d37a7
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jun 16 10:33:09 2013 -0400

    Add state propagation changes to release notes

 README.in |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index ad50edf..8767165 100644
--- a/README.in
+++ b/README.in
@@ -91,6 +91,12 @@ Release notes for 3.10
   get_height_for_width, subclasses now have to provide their own
   implementation if they need height-for-width functionality.
 
+* Widget state propagation has been changed. Historically, all of
+  active, prelight, selected, insensitive, inconsistent and backdrop
+  have been propagated to children. This has now been restricted
+  to just the insensitive and backdrop states. This mostly affects
+  theming.
+
 
 Release notes for 3.8
 =====================