diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index a326c86..1b994e8 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,6 +5,19 @@ Azure NetApp Files (ANF) Collection Release Notes
 .. contents:: Topics
 
 
+v21.9.0
+=======
+
+Minor Changes
+-------------
+
+- azure_rm_netapp_volume - new option ``feature_flags`` to selectively enable/disable a feature.
+
+Bugfixes
+--------
+
+- azure_rm_netapp_volume - 'Change Ownership' is not permitted when creating NFSv4.1 volume with latest azure-mgmt-netapp package (4.0.0).
+
 v21.8.1
 =======
 
diff --git a/changelogs/changelog.yaml b/changelogs/changelog.yaml
index 23c8c86..07b6ec7 100644
--- a/changelogs/changelog.yaml
+++ b/changelogs/changelog.yaml
@@ -149,3 +149,14 @@ releases:
     fragments:
     - DEVOPS-4135.yaml
     release_date: '2021-07-16'
+  21.9.0:
+    changes:
+      bugfixes:
+      - azure_rm_netapp_volume - 'Change Ownership' is not permitted when creating
+        NFSv4.1 volume with latest azure-mgmt-netapp package (4.0.0).
+      minor_changes:
+      - azure_rm_netapp_volume - new option ``feature_flags`` to selectively enable/disable
+        a feature.
+    fragments:
+    - DEVOPS-4246.yaml
+    release_date: '2021-09-01'