diff --git a/ChangeLog.md b/ChangeLog.md
index ef3e87162ae..d595f639418 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,6 @@
 # Change Log
 
-### 2022-03-xx - 5.13.1
+### 2022-03-08 - 5.14.0
 
 | Library                                                                 | Min Version |
 | ----------------------------------------------------------------------- | ----------- |
@@ -12,7 +12,7 @@
 
 **New Features**
 
-- Add flag `--package-mode` to generate necessary files for package #1154
+- Add flag `--package-mode=mgmtplane|dataplane|<custom package template folder>` to generate necessary files for package #1154
 
 **Bug Fixes**
 
diff --git a/autorest/codegen/__init__.py b/autorest/codegen/__init__.py
index f2a3db96e5a..31eac0f1f1f 100644
--- a/autorest/codegen/__init__.py
+++ b/autorest/codegen/__init__.py
@@ -130,7 +130,7 @@ def _build_exceptions_set(yaml_data: List[Dict[str, Any]]) -> Set[int]:
     @staticmethod
     def _build_package_dependency() -> Dict[str, str]:
         return {
-            "dependency_azure_mgmt_core": "azure-mgmt-core>=1.3.0,<2.0.0",
+            "dependency_azure_mgmt_core": "azure-mgmt-core<2.0.0,>=1.3.0",
             "dependency_azure_core": "azure-core<2.0.0,>=1.20.1",
             "dependency_msrest": "msrest>=0.6.21",
         }
diff --git a/docs/samples/specification/management/generated/setup.py b/docs/samples/specification/management/generated/setup.py
index 0a6c6b70f01..1127bdbdef3 100644
--- a/docs/samples/specification/management/generated/setup.py
+++ b/docs/samples/specification/management/generated/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/package.json b/package.json
index bfabd5c146f..e2019493235 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@autorest/python",
-    "version": "5.13.0",
+    "version": "5.14.0",
     "description": "The Python extension for generators in AutoRest.",
     "scripts": {
         "prepare": "node run-python3.js prepare.py",
diff --git a/test/azure/legacy/Expected/AcceptanceTests/AzureSpecials/setup.py b/test/azure/legacy/Expected/AcceptanceTests/AzureSpecials/setup.py
index 3749158c9d6..588c0928a33 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/AzureSpecials/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/AzureSpecials/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/CustomPollerPager/setup.py b/test/azure/legacy/Expected/AcceptanceTests/CustomPollerPager/setup.py
index 57ef5d093ed..36d18039da8 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/CustomPollerPager/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/CustomPollerPager/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Long-running Operation for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/Head/setup.py b/test/azure/legacy/Expected/AcceptanceTests/Head/setup.py
index 6214b085c5e..2d5c8ce521e 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/Head/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/Head/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/HeadExceptions/setup.py b/test/azure/legacy/Expected/AcceptanceTests/HeadExceptions/setup.py
index 03877a39fb7..ca539f5fedd 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/HeadExceptions/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/HeadExceptions/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/HeadWithAzureKeyCredentialPolicy/setup.py b/test/azure/legacy/Expected/AcceptanceTests/HeadWithAzureKeyCredentialPolicy/setup.py
index 6214b085c5e..2d5c8ce521e 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/HeadWithAzureKeyCredentialPolicy/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/HeadWithAzureKeyCredentialPolicy/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/Lro/setup.py b/test/azure/legacy/Expected/AcceptanceTests/Lro/setup.py
index 72094e6022c..a23b82574da 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/Lro/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/Lro/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Long-running Operation for AutoRest.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/PackageModeMgmtPlane/setup.py b/test/azure/legacy/Expected/AcceptanceTests/PackageModeMgmtPlane/setup.py
index 66b58fddf53..0a0f9655216 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/PackageModeMgmtPlane/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/PackageModeMgmtPlane/setup.py
@@ -60,7 +60,7 @@
     ),
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     python_requires=">=3.6",
 )
diff --git a/test/azure/legacy/Expected/AcceptanceTests/StorageManagementClient/setup.py b/test/azure/legacy/Expected/AcceptanceTests/StorageManagementClient/setup.py
index f5b20e508d4..6ec8f453e89 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/StorageManagementClient/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/StorageManagementClient/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     StorageManagementClient.
diff --git a/test/azure/legacy/Expected/AcceptanceTests/SubscriptionIdApiVersion/setup.py b/test/azure/legacy/Expected/AcceptanceTests/SubscriptionIdApiVersion/setup.py
index ae89cf44ecf..5f4a1e0fbf4 100644
--- a/test/azure/legacy/Expected/AcceptanceTests/SubscriptionIdApiVersion/setup.py
+++ b/test/azure/legacy/Expected/AcceptanceTests/SubscriptionIdApiVersion/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Some cool documentation.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/AzureSpecialsLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/AzureSpecialsLowLevel/setup.py
index 3749158c9d6..588c0928a33 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/AzureSpecialsLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/AzureSpecialsLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/HeadExceptionsLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/HeadExceptionsLowLevel/setup.py
index 03877a39fb7..ca539f5fedd 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/HeadExceptionsLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/HeadExceptionsLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/HeadLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/HeadLowLevel/setup.py
index 6214b085c5e..2d5c8ce521e 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/HeadLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/HeadLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/LroLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/LroLowLevel/setup.py
index 72094e6022c..a23b82574da 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/LroLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/LroLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Long-running Operation for AutoRest.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/StorageManagementClientLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/StorageManagementClientLowLevel/setup.py
index f5b20e508d4..6ec8f453e89 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/StorageManagementClientLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/StorageManagementClientLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     StorageManagementClient.
diff --git a/test/azure/low-level/Expected/AcceptanceTests/SubscriptionIdApiVersionLowLevel/setup.py b/test/azure/low-level/Expected/AcceptanceTests/SubscriptionIdApiVersionLowLevel/setup.py
index ae89cf44ecf..5f4a1e0fbf4 100644
--- a/test/azure/low-level/Expected/AcceptanceTests/SubscriptionIdApiVersionLowLevel/setup.py
+++ b/test/azure/low-level/Expected/AcceptanceTests/SubscriptionIdApiVersionLowLevel/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Some cool documentation.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/AzureSpecialsVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/AzureSpecialsVersionTolerant/setup.py
index 3749158c9d6..588c0928a33 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/AzureSpecialsVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/AzureSpecialsVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/CustomPollerPagerVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/CustomPollerPagerVersionTolerant/setup.py
index acacbff9836..c7878907a8c 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/CustomPollerPagerVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/CustomPollerPagerVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Long-running Operation for AutoRest.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/HeadExceptionsVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/HeadExceptionsVersionTolerant/setup.py
index 03877a39fb7..ca539f5fedd 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/HeadExceptionsVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/HeadExceptionsVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/HeadVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/HeadVersionTolerant/setup.py
index 6214b085c5e..2d5c8ce521e 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/HeadVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/HeadVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Test Infrastructure for AutoRest.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/LroVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/LroVersionTolerant/setup.py
index 72094e6022c..a23b82574da 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/LroVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/LroVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Long-running Operation for AutoRest.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/StorageManagementClientVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/StorageManagementClientVersionTolerant/setup.py
index f5b20e508d4..6ec8f453e89 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/StorageManagementClientVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/StorageManagementClientVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     StorageManagementClient.
diff --git a/test/azure/version-tolerant/Expected/AcceptanceTests/SubscriptionIdApiVersionVersionTolerant/setup.py b/test/azure/version-tolerant/Expected/AcceptanceTests/SubscriptionIdApiVersionVersionTolerant/setup.py
index ae89cf44ecf..5f4a1e0fbf4 100644
--- a/test/azure/version-tolerant/Expected/AcceptanceTests/SubscriptionIdApiVersionVersionTolerant/setup.py
+++ b/test/azure/version-tolerant/Expected/AcceptanceTests/SubscriptionIdApiVersionVersionTolerant/setup.py
@@ -22,7 +22,7 @@
     include_package_data=True,
     install_requires=[
         "msrest>=0.6.21",
-        "azure-mgmt-core>=1.3.0,<2.0.0",
+        "azure-mgmt-core<2.0.0,>=1.3.0",
     ],
     long_description="""\
     Some cool documentation.