CHANGELOG.md in grafana-rb-0.11.0 vs CHANGELOG.md in grafana-rb-0.12.0

@@ -1,4 +1,8 @@
+## Grafana-rb 0.12.0 (April 6, 2017) ##
+
+* Add optional `refresh` param.
+
 ## Grafana-rb 0.11.0 (April 6, 2017) ##
 
 * Add `tool_version` param to check minimum version
 * Add param to alow use custom working directory