diff --git a/ServiceHealth/src/V1/GetEventRequest.php b/ServiceHealth/src/V1/GetEventRequest.php
index b5ecac42aa7..004760acc0e 100644
--- a/ServiceHealth/src/V1/GetEventRequest.php
+++ b/ServiceHealth/src/V1/GetEventRequest.php
@@ -9,7 +9,7 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * Message for getting an event
+ * Message for getting an event.
  *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.GetEventRequest</code>
  */
diff --git a/ServiceHealth/src/V1/GetOrganizationEventRequest.php b/ServiceHealth/src/V1/GetOrganizationEventRequest.php
index 82ae68a3cc4..a37764823dd 100644
--- a/ServiceHealth/src/V1/GetOrganizationEventRequest.php
+++ b/ServiceHealth/src/V1/GetOrganizationEventRequest.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for getting an organization event.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.GetOrganizationEventRequest</code>
  */
 class GetOrganizationEventRequest extends \Google\Protobuf\Internal\Message
diff --git a/ServiceHealth/src/V1/GetOrganizationImpactRequest.php b/ServiceHealth/src/V1/GetOrganizationImpactRequest.php
index 88296a2e0f1..b59d14adad8 100644
--- a/ServiceHealth/src/V1/GetOrganizationImpactRequest.php
+++ b/ServiceHealth/src/V1/GetOrganizationImpactRequest.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for getting an organization impact.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.GetOrganizationImpactRequest</code>
  */
 class GetOrganizationImpactRequest extends \Google\Protobuf\Internal\Message
diff --git a/ServiceHealth/src/V1/ListEventsRequest.php b/ServiceHealth/src/V1/ListEventsRequest.php
index bf67cf80eab..e472c6fa7e9 100644
--- a/ServiceHealth/src/V1/ListEventsRequest.php
+++ b/ServiceHealth/src/V1/ListEventsRequest.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for requesting list of events.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListEventsRequest</code>
  */
 class ListEventsRequest extends \Google\Protobuf\Internal\Message
@@ -49,14 +51,15 @@ class ListEventsRequest extends \Google\Protobuf\Internal\Message
      * response. The expression takes the following forms: <br>
      * *   field=value for `category` and `state`<br>
      * *   field &lt;, >, &lt;=, or >= value for `update_time` <br>
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`,
+     * `event_impacts.product.product_name:"Eventarc"`
      * <br>
      * Multiple filter queries are separated by spaces. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
      * AND and OR expressions explicitly.
      * Filter is supported for the following fields: `category`, `state`,
-     * `update_time`
+     * `update_time`, `event_impacts.product.product_name`
      *
      * Generated from protobuf field <code>string filter = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
@@ -119,14 +122,15 @@ public static function build(string $parent): self
      *           response. The expression takes the following forms: <br>
      *           *   field=value for `category` and `state`<br>
      *           *   field &lt;, >, &lt;=, or >= value for `update_time` <br>
-     *           Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     *           Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`,
+     *           `event_impacts.product.product_name:"Eventarc"`
      *           <br>
      *           Multiple filter queries are separated by spaces. Example:
      *           `category=INCIDENT state=ACTIVE`.
      *           By default, each expression is an AND expression. However, you can include
      *           AND and OR expressions explicitly.
      *           Filter is supported for the following fields: `category`, `state`,
-     *           `update_time`
+     *           `update_time`, `event_impacts.product.product_name`
      *     @type int $view
      *           Optional. Event fields to include in response.
      * }
@@ -245,14 +249,15 @@ public function setPageToken($var)
      * response. The expression takes the following forms: <br>
      * *   field=value for `category` and `state`<br>
      * *   field &lt;, >, &lt;=, or >= value for `update_time` <br>
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`,
+     * `event_impacts.product.product_name:"Eventarc"`
      * <br>
      * Multiple filter queries are separated by spaces. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
      * AND and OR expressions explicitly.
      * Filter is supported for the following fields: `category`, `state`,
-     * `update_time`
+     * `update_time`, `event_impacts.product.product_name`
      *
      * Generated from protobuf field <code>string filter = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return string
@@ -267,14 +272,15 @@ public function getFilter()
      * response. The expression takes the following forms: <br>
      * *   field=value for `category` and `state`<br>
      * *   field &lt;, >, &lt;=, or >= value for `update_time` <br>
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`,
+     * `event_impacts.product.product_name:"Eventarc"`
      * <br>
      * Multiple filter queries are separated by spaces. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
      * AND and OR expressions explicitly.
      * Filter is supported for the following fields: `category`, `state`,
-     * `update_time`
+     * `update_time`, `event_impacts.product.product_name`
      *
      * Generated from protobuf field <code>string filter = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param string $var
diff --git a/ServiceHealth/src/V1/ListEventsResponse.php b/ServiceHealth/src/V1/ListEventsResponse.php
index d08be4ba84e..789e8058ce9 100644
--- a/ServiceHealth/src/V1/ListEventsResponse.php
+++ b/ServiceHealth/src/V1/ListEventsResponse.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for response to listing events.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListEventsResponse</code>
  */
 class ListEventsResponse extends \Google\Protobuf\Internal\Message
diff --git a/ServiceHealth/src/V1/ListOrganizationEventsRequest.php b/ServiceHealth/src/V1/ListOrganizationEventsRequest.php
index ff2ded5a368..4030fc692bf 100644
--- a/ServiceHealth/src/V1/ListOrganizationEventsRequest.php
+++ b/ServiceHealth/src/V1/ListOrganizationEventsRequest.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for requesting list of organization events.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListOrganizationEventsRequest</code>
  */
 class ListOrganizationEventsRequest extends \Google\Protobuf\Internal\Message
@@ -52,7 +54,7 @@ class ListOrganizationEventsRequest extends \Google\Protobuf\Internal\Message
      * response. The expression takes the following forms:
      * *   field=value for `category` and `state`
      * *   field &lt;, >, &lt;=, or >= value for `update_time`
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`
      * Multiple filter queries are space-separated. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
@@ -126,7 +128,7 @@ public static function build(string $parent): self
      *           response. The expression takes the following forms:
      *           *   field=value for `category` and `state`
      *           *   field &lt;, >, &lt;=, or >= value for `update_time`
-     *           Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     *           Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`
      *           Multiple filter queries are space-separated. Example:
      *           `category=INCIDENT state=ACTIVE`.
      *           By default, each expression is an AND expression. However, you can include
@@ -257,7 +259,7 @@ public function setPageToken($var)
      * response. The expression takes the following forms:
      * *   field=value for `category` and `state`
      * *   field &lt;, >, &lt;=, or >= value for `update_time`
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`
      * Multiple filter queries are space-separated. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
@@ -278,7 +280,7 @@ public function getFilter()
      * response. The expression takes the following forms:
      * *   field=value for `category` and `state`
      * *   field &lt;, >, &lt;=, or >= value for `update_time`
-     * Examples: `category=INCIDENT`, `update_time>=2000-01-01T11:30:00-04:00`
+     * Examples: `category=INCIDENT`, `update_time>="2000-01-01T11:30:00-04:00"`
      * Multiple filter queries are space-separated. Example:
      * `category=INCIDENT state=ACTIVE`.
      * By default, each expression is an AND expression. However, you can include
diff --git a/ServiceHealth/src/V1/ListOrganizationEventsResponse.php b/ServiceHealth/src/V1/ListOrganizationEventsResponse.php
index 42cf762ec82..59d09784b59 100644
--- a/ServiceHealth/src/V1/ListOrganizationEventsResponse.php
+++ b/ServiceHealth/src/V1/ListOrganizationEventsResponse.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for response to listing organization events.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListOrganizationEventsResponse</code>
  */
 class ListOrganizationEventsResponse extends \Google\Protobuf\Internal\Message
diff --git a/ServiceHealth/src/V1/ListOrganizationImpactsRequest.php b/ServiceHealth/src/V1/ListOrganizationImpactsRequest.php
index cbd2ee6ef40..17794a7c373 100644
--- a/ServiceHealth/src/V1/ListOrganizationImpactsRequest.php
+++ b/ServiceHealth/src/V1/ListOrganizationImpactsRequest.php
@@ -9,7 +9,7 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * Message for requesting list of OrganizationImpacts
+ * Message for requesting list of organization impacts.
  *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListOrganizationImpactsRequest</code>
  */
diff --git a/ServiceHealth/src/V1/ListOrganizationImpactsResponse.php b/ServiceHealth/src/V1/ListOrganizationImpactsResponse.php
index 077d67bdcc7..d63cff8ba58 100644
--- a/ServiceHealth/src/V1/ListOrganizationImpactsResponse.php
+++ b/ServiceHealth/src/V1/ListOrganizationImpactsResponse.php
@@ -9,6 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
+ * Message for response to listing organization impacts.
+ *
  * Generated from protobuf message <code>google.cloud.servicehealth.v1.ListOrganizationImpactsResponse</code>
  */
 class ListOrganizationImpactsResponse extends \Google\Protobuf\Internal\Message