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+Tue Nov  4 12:51:31 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (PRIsVALUE), vsnprintf.c (BSD_vfprintf): add
+	  RUBY_PRI_VALUE_MARK to reduce danger of accidental conflict with
+	  plain "%i".  binary incompatible with extension libraries using
+	  PRIsVALUE and built for 2.1 and earlier.  [EXPERIMENTAL]
+
 Tue Nov  4 12:33:44 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
 	* object.c: fix document of Kernel#String by @suzukaze