--- a/README	Fri Jun 19 14:32:54 2015 -0700
+++ b/README	Fri Jun 19 14:26:33 2015 -0700
@@ -57,6 +57,8 @@
 - evolve: revision are processed in the order they stack on destination
 - evolve: properly skip unstable revision with non-evolved unstable parent
 - evolve: gain --unstable --divergent --bumped flag to select the trouble
+- evolve: issue more useful error message and hint when evolve has nothing to
+  do as invocated.
 
 5.1.5 --