diff --git a/services/appconfiguration/mgmt/2019-10-01/appconfiguration/CHANGELOG.md b/services/appconfiguration/mgmt/2019-10-01/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/appconfiguration/mgmt/2019-10-01/appconfiguration/CHANGELOG.md
+++ b/services/appconfiguration/mgmt/2019-10-01/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/appconfiguration/mgmt/2019-10-01/appconfiguration/_meta.json b/services/appconfiguration/mgmt/2019-10-01/appconfiguration/_meta.json
index 034cc64db698..9f2711c82f6a 100644
--- a/services/appconfiguration/mgmt/2019-10-01/appconfiguration/_meta.json
+++ b/services/appconfiguration/mgmt/2019-10-01/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
-  "commit": "3c764635e7d442b3e74caf593029fcd440b3ef82",
+  "commit": "79ebb1274752fabe3f8e0e36a0bf70428d65801b",
   "readme": "/_/azure-rest-api-specs/specification/appconfiguration/resource-manager/readme.md",
   "tag": "package-2019-10-01",
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diff --git a/services/appconfiguration/mgmt/2020-06-01/appconfiguration/CHANGELOG.md b/services/appconfiguration/mgmt/2020-06-01/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/appconfiguration/mgmt/2020-06-01/appconfiguration/CHANGELOG.md
+++ b/services/appconfiguration/mgmt/2020-06-01/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/appconfiguration/mgmt/2020-06-01/appconfiguration/_meta.json b/services/appconfiguration/mgmt/2020-06-01/appconfiguration/_meta.json
index cde299973792..59eb404325ea 100644
--- a/services/appconfiguration/mgmt/2020-06-01/appconfiguration/_meta.json
+++ b/services/appconfiguration/mgmt/2020-06-01/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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+  "commit": "79ebb1274752fabe3f8e0e36a0bf70428d65801b",
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diff --git a/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/CHANGELOG.md b/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/CHANGELOG.md
+++ b/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/_meta.json b/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/_meta.json
index 17f86cb6fd45..9575680447fe 100644
--- a/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/_meta.json
+++ b/services/preview/appconfiguration/mgmt/2019-02-01-preview/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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diff --git a/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/CHANGELOG.md b/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/CHANGELOG.md
+++ b/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/_meta.json b/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/_meta.json
index 1ab2cb576b7a..6a5dd7c57a26 100644
--- a/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/_meta.json
+++ b/services/preview/appconfiguration/mgmt/2019-11-01-preview/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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   "readme": "/_/azure-rest-api-specs/specification/appconfiguration/resource-manager/readme.md",
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diff --git a/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/CHANGELOG.md b/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/CHANGELOG.md
+++ b/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/_meta.json b/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/_meta.json
index 89a1a643efeb..792b56a36213 100644
--- a/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/_meta.json
+++ b/services/preview/appconfiguration/mgmt/2020-07-01-preview/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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diff --git a/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/CHANGELOG.md b/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/CHANGELOG.md
+++ b/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/_meta.json b/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/_meta.json
index 759756d41f3f..1070e6cc0874 100644
--- a/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/_meta.json
+++ b/services/preview/appconfiguration/mgmt/2021-03-01-preview/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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+  "commit": "79ebb1274752fabe3f8e0e36a0bf70428d65801b",
   "readme": "/_/azure-rest-api-specs/specification/appconfiguration/resource-manager/readme.md",
   "tag": "package-2021-03-01-preview",
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diff --git a/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/CHANGELOG.md b/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/CHANGELOG.md
+++ b/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/_meta.json b/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/_meta.json
index da121c2deb57..478aa8efb4f6 100644
--- a/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/_meta.json
+++ b/services/preview/appconfiguration/mgmt/2021-10-01-preview/appconfiguration/_meta.json
@@ -1,5 +1,5 @@
 {
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   "readme": "/_/azure-rest-api-specs/specification/appconfiguration/resource-manager/readme.md",
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