[gtk+] Summarize changes so far

[Matthias Clasen <matthiasc src gnome org>]

commit c7156836431786c61e63c1f149f23da2a3809a9c
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jul 19 21:52:10 2017 -0400

    Summarize changes so far
    
    This is a high-level view of what was just merged.

 NEWS |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index ded8e5b..98481ff 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,21 @@
+Overview of Changes in GTK+ 3.91.2
+==================================
+
+* All widgets are drawing CSS backgrounds and borders
+
+* All gadgets have been replaced by widgets
+
+* GtkSpinButton no longer derives from GtkEntry
+
+* GtkScrollbar no longer derives from GtkRange
+
+* GtkAccelLabel no longer derives from GtkLabel
+
+* All remaining style properties have been removed
+
+* A new 'widget bowl' demo has been added in gtk4-demo
+
+
 Overview of Changes in GTK+ 3.91.1
 ==================================