See the file 'INSTALL'
+Release notes for 2.16
+======================
+
+* Password entries now display a caps-lock warning. This can be turned off
+ with the caps-lock-warning property.
+
+* Various orientation-related functions have been deprecated in favour
+ of the new GtkOrientable interface: gtk_scale_button_get_orientation,
+ gtk_scale_button_set_orientation, gtk_toolbar_set_orientation.
+
+* The action-proxy interaction has been changed. Widgets that operate as
+ proxies have to implement the GtkActivatable interface now. GtkActivatable
+ implementation are responsible for syncing their appearance with the
+ action and for activating the action. All GTK+ widgets that are commonly
+ used as proxies implement the GtkActivatable interface.
+
+* The handling of keyboard shortcuts has been changed, to help with a
+ longstanding complaint about the way GTK+ handles multiple layouts. GTK+
+ now only uses keys from groups other than the current group if they are
+ not present in the current group.
+
Release notes for 2.14
======================
to GTK_SENSITIVITY_ON, so that the button is always sensitive or
GTK_SENSITIVITY_OFF to make it insensitive respectively.
+* GtkAdjustment now enforces that values are restricted to the
+ range [lower, upper - page_size]. This has always been the documented
+ behaviour, and the recommended practice is to set page_size to 0
+ when using adjustments for simple scalar values, like in a slider
+ or spin button.
+
* gdk-pixbuf will use GIO for mime type detection if possible. For
this to work, shared-mime-info needs to be installed and XDG_DATA_DIRS
set accordingly at configure time. Otherwise, gdk-pixbuf falls