NewFeatures.md

@@ -7,6 +7,8 @@ Dynare 4.7 (unstable)
 
  - Macroprocessor: variables can be defined without a value (they are assigned integer 1) (preprocessor#43)
 
+ - New option `mh_tune_guess` for setting the initial value for `mh_tune_jscale` (!1717)
+
 Dynare 4.6
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