diff --git a/sdk/iothub/azure-mgmt-iothub/_meta.json b/sdk/iothub/azure-mgmt-iothub/_meta.json
index 1e15d4ff063d..9dcd29aa0b28 100644
--- a/sdk/iothub/azure-mgmt-iothub/_meta.json
+++ b/sdk/iothub/azure-mgmt-iothub/_meta.json
@@ -4,7 +4,7 @@
     "@autorest/python@5.8.4",
     "@autorest/modelerfour@4.19.2"
   ],
-  "commit": "1f327d204d0c1835d7ee675d93b423028341a6b7",
+  "commit": "a16563c19bdd590e6311078b1de2eade5ac5cac9",
   "repository_url": "https://github.com/Azure/azure-rest-api-specs",
   "autorest_command": "autorest specification/iothub/resource-manager/readme.md --multiapi --python --python-mode=update --python-sdks-folder=/home/vsts/work/1/s/azure-sdk-for-python/sdk --track2 --use=@autorest/python@5.8.4 --use=@autorest/modelerfour@4.19.2 --version=3.4.5",
   "readme": "specification/iothub/resource-manager/readme.md"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
index 83f24ab50946..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.1.0"
+VERSION = "1.0.0b1"