diff --git a/CHANGES.txt b/CHANGES.txt
index e752f095cf..ada218a72f 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 4.0-beta5
+ * Mark StreamingMetrics.ActiveOutboundStreams as deprecated (CASSANDRA-11174)
  * Increase the cqlsh version number (CASSANDRA-16509)
  * Fix the CQL generated for the views.where_clause column when some identifiers require quoting (CASSANDRA-16479)
  * Send FAILED_SESSION_MSG on shutdown and on in-progress repairs during startup (CASSANDRA-16425)
diff --git a/NEWS.txt b/NEWS.txt
index d1ca9a5505..a35c4c5310 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -288,6 +288,9 @@ Upgrading
 Deprecation
 -----------
 
+    - The JMX MBean org.apache.cassandra.metrics:type=Streaming,name=ActiveOutboundStreams has been
+      deprecated and will be removed in a subsequent major version. This metric was not updated since several version
+      already.
     - The JMX MBean org.apache.cassandra.db:type=BlacklistedDirectories has been
       deprecated in favor of org.apache.cassandra.db:type=DisallowedDirectories
       and will be removed in a subsequent major version.
diff --git a/src/java/org/apache/cassandra/metrics/StreamingMetrics.java b/src/java/org/apache/cassandra/metrics/StreamingMetrics.java
index 756354f39f..54df23357e 100644
--- a/src/java/org/apache/cassandra/metrics/StreamingMetrics.java
+++ b/src/java/org/apache/cassandra/metrics/StreamingMetrics.java
@@ -37,6 +37,7 @@ public class StreamingMetrics
 
     private static final ConcurrentMap<InetAddressAndPort, StreamingMetrics> instances = new NonBlockingHashMap<>();
 
+    @Deprecated
     public static final Counter activeStreamsOutbound = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "ActiveOutboundStreams", null));
     public static final Counter totalIncomingBytes = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "TotalIncomingBytes", null));
     public static final Counter totalOutgoingBytes = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "TotalOutgoingBytes", null));