diff --git a/models/backbeatRoutes/putMetadata.smithy b/models/backbeatRoutes/putMetadata.smithy
index 2aa181d9..3d022b6d 100644
--- a/models/backbeatRoutes/putMetadata.smithy
+++ b/models/backbeatRoutes/putMetadata.smithy
@@ -33,12 +33,18 @@ structure PutMetadataInput {
     
     @httpHeader("X-Scal-Request-Uids")
     RequestUids: String,
-    
+
+    @httpHeader("x-scal-micro-version-id")
+    MicroVersionId: String,
+
     @httpPayload
     Body: Blob
 }
 
 structure PutMetadataOutput {
     /// Version ID of the stored metadata
-    versionId: String
+    versionId: String,
+
+    @httpHeader("x-scal-cascade-loop-detected")
+    CascadeLoopDetected: Boolean
 }
\ No newline at end of file
diff --git a/models/backbeatRoutes/putdata.smithy b/models/backbeatRoutes/putdata.smithy
index 45e45780..a16b45df 100644
--- a/models/backbeatRoutes/putdata.smithy
+++ b/models/backbeatRoutes/putdata.smithy
@@ -31,6 +31,9 @@ structure PutDataInput {
     @httpHeader("X-Scal-Request-Uids")
     RequestUids: String,
 
+    @httpHeader("x-scal-micro-version-id")
+    MicroVersionId: String,
+
     @httpPayload
     @default("")
     Body: StreamingBlob
@@ -45,7 +48,10 @@ structure PutDataOutput {
 
     @httpHeader("x-amz-server-side-encryption-customer-algorithm")
     SSECustomerAlgorithm: String,
-    
+
     @httpHeader("x-amz-server-side-encryption-aws-kms-key-id")
-    SSEKMSKeyId: String
+    SSEKMSKeyId: String,
+
+    @httpHeader("x-scal-cascade-loop-detected")
+    CascadeLoopDetected: Boolean
 }
\ No newline at end of file
diff --git a/package.json b/package.json
index ec5a8a19..15670614 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@scality/cloudserverclient",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "engines": {
     "node": ">=20"
   },
diff --git a/tests/testApis.test.ts b/tests/testApis.test.ts
index 947729f3..f777414b 100644
--- a/tests/testApis.test.ts
+++ b/tests/testApis.test.ts
@@ -16,7 +16,7 @@ import { createTestClient, testConfig } from './testSetup';
 import { describeForMetadataBackend } from './testHelpers';
 import assert from 'assert';
 
-describeForMetadataBackend('CloudServer Backbeat Routes API Tests', () => {
+describe('CloudServer Backbeat Routes API Tests', () => {
     let backbeatRoutesClient: BackbeatRoutesClient;
     let s3client: S3Client;
 
@@ -37,7 +37,8 @@ describeForMetadataBackend('CloudServer Backbeat Routes API Tests', () => {
             CanonicalID: testConfig.canonicalID,
             ContentMD5: etag,
             Body: getData.Body,
-            VersioningRequired: true
+            VersioningRequired: true,
+            // MicroVersionId: '12345',
         };
 
         const command2 = new PutDataCommand(putInput);