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+Thu Dec 26 10:27:53 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* tool/merger.rb (tag): support 2.1.1 semi-automatic tagging and 2.2.0 explicit tagging.
+
 Thu Dec 26 06:35:25 2013  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
 	* proc.c: Having any mandatory keyword argument increases min arity