ChangeLog in fluent-plugin-kafka-0.6.3 vs ChangeLog in fluent-plugin-kafka-0.6.4

@@ -1,4 +1,11 @@
+Release 0.6.4 - 2017/11/23
+
+	* Multi worker support for v0.14
+	* Add kafka_message_key parameter to input plugins
+	* Relax ruby-kafka version for 0.5 or later
+	* Use oj for json when it is installed
+
 Release 0.6.3 - 2017/11/14
 
 	* in_kafka_group: re-create consumer when error happens during event fetch
 
 Release 0.6.2 - 2017/11/1