diff --git a/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/resources.proto b/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/resources.proto
index 9e35537e936..9042f00fab9 100644
--- a/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/resources.proto
+++ b/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/resources.proto
@@ -401,8 +401,8 @@ message Cluster {
     // instance IPs for this cluster will be created in the allocated range. The
     // range name must comply with RFC 1035. Specifically, the name must be 1-63
     // characters long and match the regular expression
-    // [a-z]([-a-z0-9]*[a-z0-9])?.
-    // Field name is intended to be consistent with CloudSQL.
+    // `[a-z]([-a-z0-9]*[a-z0-9])?`.
+    // Field name is intended to be consistent with Cloud SQL.
     string allocated_ip_range = 2 [(google.api.field_behavior) = OPTIONAL];
   }
 
@@ -835,7 +835,8 @@ message Instance {
   // Configuration for query insights.
   QueryInsightsInstanceConfig query_insights_config = 21;
 
-  // Read pool specific config.
+  // Read pool instance configuration.
+  // This is required if the value of instanceType is READ_POOL.
   ReadPoolConfig read_pool_config = 14;
 
   // Output only. The IP address for the Instance.
diff --git a/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/service.proto b/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/service.proto
index 5cb16a67981..8c47a29b6ff 100644
--- a/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/service.proto
+++ b/packages/google-cloud-alloydb/protos/google/cloud/alloydb/v1/service.proto
@@ -1358,6 +1358,11 @@ message GenerateClientCertificateRequest {
 
   // Optional. The public key from the client.
   string public_key = 5 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. An optional hint to the endpoint to generate a client
+  // ceritificate that can be used by AlloyDB connectors to exchange additional
+  // metadata with the server after TLS handshake.
+  bool use_metadata_exchange = 6 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Message returned by a GenerateClientCertificate operation.
diff --git a/packages/google-cloud-alloydb/protos/protos.d.ts b/packages/google-cloud-alloydb/protos/protos.d.ts
index 82ebb5837ea..6a439bc88c9 100644
--- a/packages/google-cloud-alloydb/protos/protos.d.ts
+++ b/packages/google-cloud-alloydb/protos/protos.d.ts
@@ -8111,6 +8111,9 @@ export namespace google {
 
                     /** GenerateClientCertificateRequest publicKey */
                     publicKey?: (string|null);
+
+                    /** GenerateClientCertificateRequest useMetadataExchange */
+                    useMetadataExchange?: (boolean|null);
                 }
 
                 /** Represents a GenerateClientCertificateRequest. */
@@ -8134,6 +8137,9 @@ export namespace google {
                     /** GenerateClientCertificateRequest publicKey. */
                     public publicKey: string;
 
+                    /** GenerateClientCertificateRequest useMetadataExchange. */
+                    public useMetadataExchange: boolean;
+
                     /**
                      * Creates a new GenerateClientCertificateRequest instance using the specified properties.
                      * @param [properties] Properties to set
diff --git a/packages/google-cloud-alloydb/protos/protos.js b/packages/google-cloud-alloydb/protos/protos.js
index 3d8e41da236..cdfe0641a69 100644
--- a/packages/google-cloud-alloydb/protos/protos.js
+++ b/packages/google-cloud-alloydb/protos/protos.js
@@ -20542,6 +20542,7 @@
                          * @property {string|null} [requestId] GenerateClientCertificateRequest requestId
                          * @property {google.protobuf.IDuration|null} [certDuration] GenerateClientCertificateRequest certDuration
                          * @property {string|null} [publicKey] GenerateClientCertificateRequest publicKey
+                         * @property {boolean|null} [useMetadataExchange] GenerateClientCertificateRequest useMetadataExchange
                          */
     
                         /**
@@ -20591,6 +20592,14 @@
                          */
                         GenerateClientCertificateRequest.prototype.publicKey = "";
     
+                        /**
+                         * GenerateClientCertificateRequest useMetadataExchange.
+                         * @member {boolean} useMetadataExchange
+                         * @memberof google.cloud.alloydb.v1.GenerateClientCertificateRequest
+                         * @instance
+                         */
+                        GenerateClientCertificateRequest.prototype.useMetadataExchange = false;
+    
                         /**
                          * Creates a new GenerateClientCertificateRequest instance using the specified properties.
                          * @function create
@@ -20623,6 +20632,8 @@
                                 $root.google.protobuf.Duration.encode(message.certDuration, writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
                             if (message.publicKey != null && Object.hasOwnProperty.call(message, "publicKey"))
                                 writer.uint32(/* id 5, wireType 2 =*/42).string(message.publicKey);
+                            if (message.useMetadataExchange != null && Object.hasOwnProperty.call(message, "useMetadataExchange"))
+                                writer.uint32(/* id 6, wireType 0 =*/48).bool(message.useMetadataExchange);
                             return writer;
                         };
     
@@ -20673,6 +20684,10 @@
                                         message.publicKey = reader.string();
                                         break;
                                     }
+                                case 6: {
+                                        message.useMetadataExchange = reader.bool();
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -20722,6 +20737,9 @@
                             if (message.publicKey != null && message.hasOwnProperty("publicKey"))
                                 if (!$util.isString(message.publicKey))
                                     return "publicKey: string expected";
+                            if (message.useMetadataExchange != null && message.hasOwnProperty("useMetadataExchange"))
+                                if (typeof message.useMetadataExchange !== "boolean")
+                                    return "useMetadataExchange: boolean expected";
                             return null;
                         };
     
@@ -20748,6 +20766,8 @@
                             }
                             if (object.publicKey != null)
                                 message.publicKey = String(object.publicKey);
+                            if (object.useMetadataExchange != null)
+                                message.useMetadataExchange = Boolean(object.useMetadataExchange);
                             return message;
                         };
     
@@ -20769,6 +20789,7 @@
                                 object.requestId = "";
                                 object.certDuration = null;
                                 object.publicKey = "";
+                                object.useMetadataExchange = false;
                             }
                             if (message.parent != null && message.hasOwnProperty("parent"))
                                 object.parent = message.parent;
@@ -20778,6 +20799,8 @@
                                 object.certDuration = $root.google.protobuf.Duration.toObject(message.certDuration, options);
                             if (message.publicKey != null && message.hasOwnProperty("publicKey"))
                                 object.publicKey = message.publicKey;
+                            if (message.useMetadataExchange != null && message.hasOwnProperty("useMetadataExchange"))
+                                object.useMetadataExchange = message.useMetadataExchange;
                             return object;
                         };
     
diff --git a/packages/google-cloud-alloydb/protos/protos.json b/packages/google-cloud-alloydb/protos/protos.json
index 15dcdcfabee..a479ed784c6 100644
--- a/packages/google-cloud-alloydb/protos/protos.json
+++ b/packages/google-cloud-alloydb/protos/protos.json
@@ -2902,6 +2902,13 @@
                           "options": {
                             "(google.api.field_behavior)": "OPTIONAL"
                           }
+                        },
+                        "useMetadataExchange": {
+                          "type": "bool",
+                          "id": 6,
+                          "options": {
+                            "(google.api.field_behavior)": "OPTIONAL"
+                          }
                         }
                       }
                     },
diff --git a/packages/google-cloud-alloydb/samples/generated/v1/alloy_d_b_admin.generate_client_certificate.js b/packages/google-cloud-alloydb/samples/generated/v1/alloy_d_b_admin.generate_client_certificate.js
index fa0c3f2a889..ca15830b7b8 100644
--- a/packages/google-cloud-alloydb/samples/generated/v1/alloy_d_b_admin.generate_client_certificate.js
+++ b/packages/google-cloud-alloydb/samples/generated/v1/alloy_d_b_admin.generate_client_certificate.js
@@ -59,6 +59,12 @@ function main(parent) {
    *  Optional. The public key from the client.
    */
   // const publicKey = 'abc123'
+  /**
+   *  Optional. An optional hint to the endpoint to generate a client
+   *  ceritificate that can be used by AlloyDB connectors to exchange additional
+   *  metadata with the server after TLS handshake.
+   */
+  // const useMetadataExchange = true
 
   // Imports the Alloydb library
   const {AlloyDBAdminClient} = require('@google-cloud/alloydb').v1;
diff --git a/packages/google-cloud-alloydb/samples/generated/v1/snippet_metadata_google.cloud.alloydb.v1.json b/packages/google-cloud-alloydb/samples/generated/v1/snippet_metadata_google.cloud.alloydb.v1.json
index 99e6271f58e..6d5e8ac250d 100644
--- a/packages/google-cloud-alloydb/samples/generated/v1/snippet_metadata_google.cloud.alloydb.v1.json
+++ b/packages/google-cloud-alloydb/samples/generated/v1/snippet_metadata_google.cloud.alloydb.v1.json
@@ -1286,7 +1286,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 80,
+                    "end": 86,
                     "type": "FULL"
                 }
             ],
@@ -1310,6 +1310,10 @@
                     {
                         "name": "public_key",
                         "type": "TYPE_STRING"
+                    },
+                    {
+                        "name": "use_metadata_exchange",
+                        "type": "TYPE_BOOL"
                     }
                 ],
                 "resultType": ".google.cloud.alloydb.v1.GenerateClientCertificateResponse",
diff --git a/packages/google-cloud-alloydb/src/v1/alloy_d_b_admin_client.ts b/packages/google-cloud-alloydb/src/v1/alloy_d_b_admin_client.ts
index 06f22fd6098..b886b757f51 100644
--- a/packages/google-cloud-alloydb/src/v1/alloy_d_b_admin_client.ts
+++ b/packages/google-cloud-alloydb/src/v1/alloy_d_b_admin_client.ts
@@ -943,6 +943,10 @@ export class AlloyDBAdminClient {
    *   default duration.
    * @param {string} [request.publicKey]
    *   Optional. The public key from the client.
+   * @param {boolean} [request.useMetadataExchange]
+   *   Optional. An optional hint to the endpoint to generate a client
+   *   ceritificate that can be used by AlloyDB connectors to exchange additional
+   *   metadata with the server after TLS handshake.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.