diff --git a/Bigtable/metadata/Admin/V2/Instance.php b/Bigtable/metadata/Admin/V2/Instance.php
index 22005ad358e9..51e9f0c248b6 100644
Binary files a/Bigtable/metadata/Admin/V2/Instance.php and b/Bigtable/metadata/Admin/V2/Instance.php differ
diff --git a/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny.php b/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny.php
index a0b957de149a..455a007dbf2b 100644
--- a/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny.php
+++ b/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny.php
@@ -26,6 +26,7 @@ class MultiClusterRoutingUseAny extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>repeated string cluster_ids = 1;</code>
      */
     private $cluster_ids;
+    protected $affinity;
 
     /**
      * Constructor.
@@ -36,6 +37,9 @@ class MultiClusterRoutingUseAny extends \Google\Protobuf\Internal\Message
      *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $cluster_ids
      *           The set of clusters to route to. The order is ignored; clusters will be
      *           tried in order of distance. If left empty, all clusters are eligible.
+     *     @type \Google\Cloud\Bigtable\Admin\V2\AppProfile\MultiClusterRoutingUseAny\RowAffinity $row_affinity
+     *           Row affinity sticky routing based on the row key of the request.
+     *           Requests that span multiple rows are routed non-deterministically.
      * }
      */
     public function __construct($data = NULL) {
@@ -71,6 +75,47 @@ public function setClusterIds($var)
         return $this;
     }
 
+    /**
+     * Row affinity sticky routing based on the row key of the request.
+     * Requests that span multiple rows are routed non-deterministically.
+     *
+     * Generated from protobuf field <code>.google.bigtable.admin.v2.AppProfile.MultiClusterRoutingUseAny.RowAffinity row_affinity = 3;</code>
+     * @return \Google\Cloud\Bigtable\Admin\V2\AppProfile\MultiClusterRoutingUseAny\RowAffinity|null
+     */
+    public function getRowAffinity()
+    {
+        return $this->readOneof(3);
+    }
+
+    public function hasRowAffinity()
+    {
+        return $this->hasOneof(3);
+    }
+
+    /**
+     * Row affinity sticky routing based on the row key of the request.
+     * Requests that span multiple rows are routed non-deterministically.
+     *
+     * Generated from protobuf field <code>.google.bigtable.admin.v2.AppProfile.MultiClusterRoutingUseAny.RowAffinity row_affinity = 3;</code>
+     * @param \Google\Cloud\Bigtable\Admin\V2\AppProfile\MultiClusterRoutingUseAny\RowAffinity $var
+     * @return $this
+     */
+    public function setRowAffinity($var)
+    {
+        GPBUtil::checkMessage($var, \Google\Cloud\Bigtable\Admin\V2\AppProfile\MultiClusterRoutingUseAny\RowAffinity::class);
+        $this->writeOneof(3, $var);
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAffinity()
+    {
+        return $this->whichOneof("affinity");
+    }
+
 }
 
 // Adding a class alias for backwards compatibility with the previous class name.
diff --git a/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny/RowAffinity.php b/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny/RowAffinity.php
new file mode 100644
index 000000000000..f553b0a42fad
--- /dev/null
+++ b/Bigtable/src/Admin/V2/AppProfile/MultiClusterRoutingUseAny/RowAffinity.php
@@ -0,0 +1,44 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/bigtable/admin/v2/instance.proto
+
+namespace Google\Cloud\Bigtable\Admin\V2\AppProfile\MultiClusterRoutingUseAny;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * If enabled, Bigtable will route the request based on the row key of the
+ * request, rather than randomly. Instead, each row key will be assigned
+ * to a cluster, and will stick to that cluster. If clusters are added or
+ * removed, then this may affect which row keys stick to which clusters.
+ * To avoid this, users can use a cluster group to specify which clusters
+ * are to be used. In this case, new clusters that are not a part of the
+ * cluster group will not be routed to, and routing will be unaffected by
+ * the new cluster. Moreover, clusters specified in the cluster group cannot
+ * be deleted unless removed from the cluster group.
+ *
+ * Generated from protobuf message <code>google.bigtable.admin.v2.AppProfile.MultiClusterRoutingUseAny.RowAffinity</code>
+ */
+class RowAffinity extends \Google\Protobuf\Internal\Message
+{
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Google\Bigtable\Admin\V2\Instance::initOnce();
+        parent::__construct($data);
+    }
+
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(RowAffinity::class, \Google\Cloud\Bigtable\Admin\V2\AppProfile_MultiClusterRoutingUseAny_RowAffinity::class);
+