add documentation of graylevel deprecation

jbmohler · jbmohler · commit 0e747c82a8bf · 2014-11-18T14:18:39.000-05:00
diff --git a/doc/api/api_changes.rst b/doc/api/api_changes.rst
@@ -11,6 +11,15 @@ help figure out possible sources of the changes you are experiencing.
 For new features that were added to matplotlib, please see
 :ref:`whats-new`.
 
+Changes in 1.5.x
+================
+
+Code changes
+------------
+
+* The `GraphicsContextBase.set_graylevel` function has been deprecated in 1.5
+  and removed in 1.6.  It has been unused.
+
 Changes in 1.4.x
 ================
 
