diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 3c952a1fb4a..5f09aca293e 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -1814,6 +1814,8 @@ Release 2.8.0 - UNRELEASED
     HDFS-9779 . TestReplicationPolicyWithNodeGroup NODE variable picks wrong rack value
     (Kuhu Shukla via umamahesh)
 
+    HDFS-9788. Incompatible tag renumbering in HeartbeatResponseProto. (wang)
+
 Release 2.7.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/DatanodeProtocol.proto b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/DatanodeProtocol.proto
index 3c5e7edd438..a3b61398764 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/DatanodeProtocol.proto
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/DatanodeProtocol.proto
@@ -219,8 +219,8 @@ message HeartbeatResponseProto {
   repeated DatanodeCommandProto cmds = 1; // Returned commands can be null
   required NNHAStatusHeartbeatProto haStatus = 2;
   optional RollingUpgradeStatusProto rollingUpgradeStatus = 3;
-  optional uint64 fullBlockReportLeaseId = 4 [ default = 0 ];
-  optional RollingUpgradeStatusProto rollingUpgradeStatusV2 = 5;
+  optional RollingUpgradeStatusProto rollingUpgradeStatusV2 = 4;
+  optional uint64 fullBlockReportLeaseId = 5 [ default = 0 ];
 }
 
 /**