news.md in grntest-1.4.0

- old
+ new

@@ -1,6 +1,12 @@
 # News
 
+## 1.4.0: 2020-05-16
+
+### Improvements
+
+  * Added support for normalizing mruby's syntax error message.
+
 ## 1.3.9: 2020-05-09
 
 ### Improvements
 
   * Added `progress` reporter.