--- a/hgext/evolve.py	Tue Jun 23 18:16:21 2015 -0700
+++ b/hgext/evolve.py	Wed Jun 24 16:37:02 2015 -0700
@@ -685,6 +685,8 @@
     def warnobsolete():
         if repo['.'].obsolete():
             ui.warn(_('working directory parent is obsolete!\n'))
+            if (not ui.quiet) and obsolete.isenabled(repo, commandopt):
+                ui.warn(_('(use "hg evolve" to update to its successor)\n'))
     wlock = None
     try:
         wlock = repo.wlock()