[glib] Add release note about GApplication

[Matthias Clasen <matthiasc src gnome org>]

commit ab2112a77b16cb36785088bb5975ef62f075102a
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 8 07:33:02 2011 -0500

    Add release note about GApplication

 README.in |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index 94a3c2a..7a5bf99 100644
--- a/README.in
+++ b/README.in
@@ -24,6 +24,18 @@ Installation
 
 See the file 'INSTALL'
 
+Notes about GLib 2.28
+=====================
+
+* The GApplication API has changed compared to the version that was
+  included in the 2.25 development snapshots. Existing users will need
+  adjustments.
+
+Notes about GLib 2.26
+=====================
+
+* Nothing noteworthy.
+
 Notes about GLib 2.24
 =====================