diff -r fe80fdf68ba7 -r 3971f64d7a25 mercurial/help/glossary.txt
--- a/mercurial/help/glossary.txt	Thu Oct 09 16:57:45 2014 -0700
+++ b/mercurial/help/glossary.txt	Fri Oct 17 12:34:27 2014 -0500
@@ -177,6 +177,9 @@
     Mercurial, the DAG is limited by the requirement for children to
     have at most two parents.
 
+Deprecated
+    Feature removed from documentation, but not scheduled for removal.
+
 Default branch
     See 'Branch, default'.
 
@@ -217,6 +220,9 @@
     repositories and may thus be safely changed by history-modifying
     extensions. See :hg:`help phases`.
 
+Experimental
+    Feature that may change or be removed at a later date.
+
 Graph
     See DAG and :hg:`log --graph`.