chia7712 commented on code in PR #18749:
URL: https://github.com/apache/kafka/pull/18749#discussion_r1938757450


##########
coordinator-common/src/main/java/org/apache/kafka/coordinator/common/runtime/CoordinatorRecordSerde.java:
##########
@@ -76,6 +76,11 @@ public CoordinatorRecord deserialize(
 
         final ApiMessage valueMessage = apiMessageValueFor(recordType);
         final short valueVersion = readVersion(valueBuffer, "value");
+
+        if (valueVersion < valueMessage.lowestSupportedVersion() || 
valueVersion > valueMessage.highestSupportedVersion()) {
+            throw new UnknownRecordVersionException(recordType, valueVersion);
+        }

Review Comment:
   The `UnknownRecordTypeException` is caught as the aborted upgrade might 
leave behind some "new" records. Should we also consider handling 
`UnknownRecordVersionException`?



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