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+Fri Oct 23 11:58:21 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_peephole_optimize): optimize lengthy safe
+	  navigation method chain.  [Feature #11537]
+
 Fri Oct 23 10:58:41 2015  Shugo Maeda  <shugo@ruby-lang.org>
 
 	* lib/matrix/eigenvalue_decomposition.rb (tridiagonalize): fix