diff --git a/HISTORY.rst b/HISTORY.rst
index 4e506aa9a..bdd9b25ed 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,6 +4,18 @@ Release History
 ===============
 
 
+0.21.5
++++++++++++++++
+
+**Digital Twins updates**
+
+* Addition of `az dt job deletion` to create deletion jobs. This job will delete all models, twins, and relationships, replacing `az dt reset`. The deletion jobs cannot be canceled or deleted. The added commands are:
+  * `az dt job deletion create`
+  * `az dt job deletion list`
+  * `az dt job deletion show`
+* The command `az dt reset` is deprecated and will be removed in a later update.
+
+
 0.21.4
 +++++++++++++++
 
diff --git a/azext_iot/constants.py b/azext_iot/constants.py
index aa57059a9..4699ea57e 100644
--- a/azext_iot/constants.py
+++ b/azext_iot/constants.py
@@ -7,7 +7,7 @@
 
 import os
 
-VERSION = "0.21.4"
+VERSION = "0.21.5"
 EXTENSION_NAME = "azure-iot"
 EXTENSION_ROOT = os.path.dirname(os.path.abspath(__file__))
 EXTENSION_CONFIG_ROOT_KEY = "iotext"