diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index d5797e842f..30664c17a0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -517,6 +517,9 @@ Release 2.6.0 - UNRELEASED
     HDFS-4486. Add log category for long-running DFSClient notices (Zhe Zhang
     via Colin Patrick McCabe)
 
+    HDFS-6879. Adding tracing to Hadoop RPC (Masatake Iwasaki via Colin Patrick
+    McCabe)
+
   OPTIMIZATIONS
 
     HDFS-6690. Deduplicate xattr names in memory. (wang)