CHANGELOG.md in numo-openblas-0.4.8 vs CHANGELOG.md in numo-openblas-0.4.9

- old
+ new

@@ -1,4 +1,7 @@
+## 0.4.9
+- Change the version of OpenBLAS to be downloaded to 0.3.23.
+
 ## 0.4.8
 - Change the version of OpenBLAS to be downloaded to 0.3.21.
 
 ## 0.4.7
 - Refactor codes and configs with RuboCop.