diff --git a/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md b/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
index a2bd0efc5d16..a1ecf841edb0 100644
--- a/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
+++ b/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
@@ -1,11 +1,2 @@
-# Change History
+# Unreleased
 
-## Additive Changes
-
-### New Funcs
-
-1. AzureEntityResource.MarshalJSON() ([]byte, error)
-1. ProxyResource.MarshalJSON() ([]byte, error)
-1. Resource.MarshalJSON() ([]byte, error)
-1. SystemAssignedIdentityProperties.MarshalJSON() ([]byte, error)
-1. UserAssignedIdentityProperties.MarshalJSON() ([]byte, error)
diff --git a/services/msi/mgmt/2018-11-30/msi/_meta.json b/services/msi/mgmt/2018-11-30/msi/_meta.json
index 562281767795..5aad13e118df 100644
--- a/services/msi/mgmt/2018-11-30/msi/_meta.json
+++ b/services/msi/mgmt/2018-11-30/msi/_meta.json
@@ -1,5 +1,5 @@
 {
-  "commit": "3c764635e7d442b3e74caf593029fcd440b3ef82",
+  "commit": "ebbb4a9474813d5e89acddee0aeb96e72b6e58ca",
   "readme": "/_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
   "tag": "package-2018-11-30",
   "use": "@microsoft.azure/autorest.go@2.1.183",
diff --git a/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md b/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
index cc54c27f7b8f..a1ecf841edb0 100644
--- a/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
+++ b/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
@@ -1,10 +1,2 @@
-# Change History
+# Unreleased
 
-## Additive Changes
-
-### New Funcs
-
-1. AzureEntityResource.MarshalJSON() ([]byte, error)
-1. IdentityProperties.MarshalJSON() ([]byte, error)
-1. ProxyResource.MarshalJSON() ([]byte, error)
-1. Resource.MarshalJSON() ([]byte, error)
diff --git a/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json b/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
index 07c3d71b46cb..f75c5c1055e7 100644
--- a/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
+++ b/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
@@ -1,5 +1,5 @@
 {
-  "commit": "3c764635e7d442b3e74caf593029fcd440b3ef82",
+  "commit": "ebbb4a9474813d5e89acddee0aeb96e72b6e58ca",
   "readme": "/_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
   "tag": "package-2015-08-31-preview",
   "use": "@microsoft.azure/autorest.go@2.1.183",