news.md in grntest-1.6.8

- old
+ new

@@ -1,6 +1,13 @@
 # News
 
+## 1.6.8: 2024-02-05
+
+### Fixes
+
+  * reporter: benchmark-json: Fixed a bug that invalid JSON is
+    generated.
+
 ## 1.6.7: 2024-02-05
 
 ### Improvements
 
   * Added benchmark mode. It uses Google Benchmark compatible JSON