Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/5173#discussion_r160608269
--- Diff:
flink-connectors/flink-connector-kafka-base/src/main/java/org/apache/flink/streaming/util/serialization/KeyedSerializationSchema.java
---
@@ -26,6 +28,7 @@
*
* @param <T> The type to be serialized.
*/
+@Internal
--- End diff --
`KeyedSerializationSchema` should be `@PublicEvolving`.---
