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{
  "apiKey": 76,
  "type": "response",
  "name": "AddVoterResponse",
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "ErrorCode", "type": "int16", "versions": "0+",
      "about": "The error code, or 0 if there was no error" },
    { "name": "ErrorMessage", "type": "string", "versions": "0+", "nullableVersions": "0+", "ignorable": true,
      "about": "The error message, or null if there was no error." },
    { "name": "CurrentLeader", "type": "LeaderIdAndEpoch", "versions": "0+", "taggedVersions": "0+", "tag": 0, "fields": [
      { "name": "LeaderId", "type": "int32", "versions": "0+", "default": "-1", "entityType" : "brokerId",
        "about": "The replica id of the current leader or -1 if the leader is unknown" },
      { "name": "LeaderEpoch", "type": "int32", "versions": "0+", "default": "-1",
        "about": "The latest known leader epoch" }
    ]},
    { "name": "NodeEndpoint", "type": "NodeEndpoint", "versions": "0+", "taggedVersions": "0+", "tag": 1,
      "about": "Endpoint for current leader of the topic partition", "fields": [
      { "name": "Host", "type": "string", "versions": "0+", "about": "The node's hostname" },
      { "name": "Port", "type": "int32", "versions": "0+", "about": "The node's port" }
    ]}
  ]
}

{
  "apiKey": 77,
  "type": "response",
  "name": "RemoveVoterResponse",
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "ErrorCode", "type": "int16", "versions": "0+",
      "about": "The error code, or 0 if there was no error" },
    { "name": "CurrentLeaderErrorMessage", "type": "LeaderIdAndEpochstring", "versions": "0+", "taggedVersionsnullableVersions": "0+", "tagignorable": 0,true,
      "fieldsabout": [
      "The error message, or null if there was no error." },
    { "name": "LeaderIdCurrentLeader", "type": "int32LeaderIdAndEpoch", "versions": "0+", "defaulttaggedVersions": "-10+", "entityTypetag": :0, "brokerIdfields",: [
      {  "aboutname": "The LeaderId", "type": "int32", "versions": "0+", "default": "-1", "entityType" : "brokerId",
        "about": "The replica id of the current leader or -1 if the leader is unknown" },
      { "name": "LeaderEpoch", "type": "int32", "versions": "0+", "default": "-1",
        "about": "The latest known leader epoch" }
    ]},
    { "name": "NodeEndpoint", "type": "NodeEndpoint", "versions": "0+", "taggedVersions": "0+", "tag": 1,
      "about": "Endpoint for current leader of the topic partition", "fields": [
      { "name": "Host", "type": "string", "versions": "0+", "about": "The node's hostname" },
      { "name": "Port", "type": "int32", "versions": "0+", "about": "The node's port" }
    ]}
  ]
}

git diff upstream/trunk clients/src/main/resources/common/message/DescribeQuorumResponse.json
diff --git a/clients/src/main/resources/common/message/DescribeQuorumResponse.json b/clients/src/main/resources/common/message/DescribeQuorumResponse.json
index 0ea6271238..e2481dff04b54cd6bd50 100644
--- a/clients/src/main/resources/common/message/DescribeQuorumResponse.json
+++ b/clients/src/main/resources/common/message/DescribeQuorumResponse.json
@@ -18,711 +18,713 @@
   "type": "response",
   "name": "DescribeQuorumResponse",
   // Version 1 adds LastFetchTimeStamp and LastCaughtUpTimestamp in ReplicaState (KIP-836).
-  "validVersions": "0-1",
+  "validVersions": "0-2",
   "flexibleVersions": "0+",
   "fields": [
     { "name": "ErrorCode", "type": "int16", "versions": "0+",
@@ -40,10 +40       "about": "The top level error code."},
+    { "name": "ErrorMessage", "type": "string", "versions": "2+", "nullableVersions": "2+", "ignorable": true,
+      "about": "The error message, or null if there was no error." },
     { "name": "Topics", "type": "[]TopicData",
       "versions": "0+", "fields": [
       { "name": "TopicName", "type": "string", "versions": "0+", "entityType": "topicName",
@@ -32,6 +34,8 @@
         { "name": "PartitionIndex", "type": "int32", "versions": "0+",
           "about": "The partition index." },
         { "name": "ErrorCode", "type": "int16", "versions": "0+"},
+        { "name": "ErrorMessage", "type": "string", "versions": "2+", "nullableVersions": "2+", "ignorable": true,
+          "about": "The error message, or null if there was no error." },
         { "name": "LeaderId", "type": "int32", "versions": "0+", "entityType": "brokerId",
           "about": "The ID of the current leader or -1 if the leader is unknown."},
         { "name": "LeaderEpoch", "type": "int32", "versions": "0+",
@@ -40,10 +44,25 @@
         { "name": "CurrentVoters", "type": "[]ReplicaState", "versions": "0+" },
         { "name": "Observers", "type": "[]ReplicaState", "versions": "0+" }
       ]}
-    ]}],
+    ]},
+    { "name": "Nodes", "type": "[]Node", "versions": "2+", "fields": [
+      { "name": "NodeId", "type": "int32", "versions": "2+",
+        "mapKey": true, "entityType": "brokerId", "about": "The ID of the associated node" },
+      { "name": "Listeners", "type": "[]Listener",
+        "about": "The listeners of this controller", "versions": "0+", "fields": [
+        { "name": "Name", "type": "string", "versions": "0+", "mapKey": true,
+          "about": "The name of the endpoint" },
+        { "name": "Host", "type": "string", "versions": "0+",
+          "about": "The hostname" },
+        { "name": "Port", "type": "uint16", "versions": "0+",
+          "about": "The port" }
+      ]}
+    ]}
+  ],
   "commonStructs": [
     { "name": "ReplicaState", "versions": "0+", "fields": [
       { "name": "ReplicaId", "type": "int32", "versions": "0+", "entityType": "brokerId" },
+      { "name": "ReplicaUuid", "type": "uuid", "versions": "2+" },
       { "name": "LogEndOffset", "type": "int64", "versions": "0+",
         "about": "The last known log end offset of the follower or -1 if it is unknown"},
       { "name": "LastFetchTimestamp", "type": "int64", "versions": "1+", "ignorable": true, "default": -1,