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+Thu Nov 29 15:38:14 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* include/ruby/debug.h: provide rb_tracearg_*() APIs,
+	  instead of rb_tracepoint_attr_*().
+	  These APIs are for debuggers/profilers.
+	  They will be explained in another docs somtime.
+
+	* vm_trace.c: ditto.
+
 Thu Nov 29 15:10:45 2012  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* test/minitest/test_minitest_unit.rb: restore orig_verbose only