diff --git a/.github/SECURITY.md b/.github/SECURITY.md
index 1cc2b5fe..aff9b1e8 100644
--- a/.github/SECURITY.md
+++ b/.github/SECURITY.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2810186..a008bc23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,22 @@
+# v1.2.0 (September 27, 2023)
+## Release Summary
+The release supports resources and data sources mentioned in the Features section for Dell PowerFlex.
+## Features
+
+### Resources
+* `powerflex_cluster` for deploying PowerFlex cluster.
+* `powerflex_mdm_cluster` for managing MDM cluster in PowerFlex.
+* `powerflex_user` for managing users in PowerFlex.
+
+### Data Sources:
+* `powerflex_vtree` for reading VTree details in PowerFlex.
+
+### Notes:
+* `name` attribute is removed from sdc resource.
+
 # v1.1.0 (June 28, 2023)
 ## Release Summary
-The release supports resources mentioned in the Features section for Dell PowerFlex.
+The release supports resources and data sources mentioned in the Features section for Dell PowerFlex.
 ## Features
 
 ### Resources
diff --git a/README.md b/README.md
index d40f8da3..8d130fce 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -49,7 +49,7 @@ The Terraform Provider for Dell PowerFlex is released and licensed under the MPL
 
 | **Terraform Provider** | **PowerFlex/VxFlex OS Version** | **OS** | **Terraform** | **Golang** |
 |---------------------|-----------------------|-------|--------------------|--------------------------|
-| v1.1.0 | 3.6 | ubuntu22.04 <br> rhel8.x <br> rhel7.x | 1.3.2 <br> 1.2.9 <br> | 1.19.x
+| v1.2.0 | 3.6 | ubuntu22.04 <br> rhel8.x <br> rhel9.x | 1.3.x <br> 1.5.x <br> | 1.20.x
 
 ## List of DataSources in Terraform Provider for Dell PowerFlex
   * [SDC](docs/data-sources/sdc.md)
@@ -59,6 +59,7 @@ The Terraform Provider for Dell PowerFlex is released and licensed under the MPL
   * [Protection Domain](docs/data-sources/protection_domain.md)
   * [Snapshot Policy](docs/data-sources/snapshot_policy.md)
   * [Device](docs/data-sources/device.md)
+  * [VTree](docs/data-sources/vtree.md)
 
 ## List of Resources in Terraform Provider for Dell PowerFlex
   * [SDC](docs/resources/sdc.md)
@@ -70,6 +71,9 @@ The Terraform Provider for Dell PowerFlex is released and licensed under the MPL
   * [SDC Volume Mapping](docs/resources/sdc_volumes_mapping.md)
   * [Device](docs/resources/device.md)
   * [Package](docs/resources/package.md)
+  * [Cluster](docs/resources/cluster.md)
+  * [MDM Cluster](docs/resources/mdm_cluster.md)
+  * [User](docs/resources/user.md)
 
 ## Installation and execution of Terraform Provider for Dell PowerFlex
 The installation and execution steps of Terraform Provider for Dell PowerFlex can be found [here](about/INSTALLATION.md).
diff --git a/about/CODE_OF_CONDUCT.md b/about/CODE_OF_CONDUCT.md
index 04d58ecd..2bfe4da1 100644
--- a/about/CODE_OF_CONDUCT.md
+++ b/about/CODE_OF_CONDUCT.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/about/COMMITTER_GUIDE.md b/about/COMMITTER_GUIDE.md
index 370f2cc4..56be3dd2 100644
--- a/about/COMMITTER_GUIDE.md
+++ b/about/COMMITTER_GUIDE.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/about/CONTRIBUTING.md b/about/CONTRIBUTING.md
index 58b0a702..689826da 100644
--- a/about/CONTRIBUTING.md
+++ b/about/CONTRIBUTING.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/about/INSTALLATION.md b/about/INSTALLATION.md
index 08db294f..ad8bc77a 100644
--- a/about/INSTALLATION.md
+++ b/about/INSTALLATION.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -26,7 +26,7 @@ Create a file called `main.tf` in your workspace with the following contents
 terraform {
   required_providers {
     powerflex = {
-      version = "1.1.0"
+      version = "1.2.0"
       source  = "registry.terraform.io/dell/powerflex"
     }
   }
diff --git a/about/SUPPORT.md b/about/SUPPORT.md
index 0c8447ff..2fb42d3e 100644
--- a/about/SUPPORT.md
+++ b/about/SUPPORT.md
@@ -1,5 +1,5 @@
 <!--
-Copyright (c) 2022 Dell Inc., or its subsidiaries. All Rights Reserved.
+Copyright (c) 2023 Dell Inc., or its subsidiaries. All Rights Reserved.
 
 Licensed under the Mozilla Public License Version 2.0 (the "License");
 you may not use this file except in compliance with the License.