diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineHttpRequest.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineHttpRequest.java index adfd0c0d992a..b1db0a4dab61 100644 --- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineHttpRequest.java +++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineHttpRequest.java @@ -22,6 +22,11 @@ * [How Requests are Routed](https://cloud.google.com/appengine/docs/standard/python/how-requests-are-routed) * and how routing is affected by * [dispatch files](https://cloud.google.com/appengine/docs/python/config/dispatchref). + * Traffic is encrypted during transport and never leaves Google datacenters. + * Because this traffic is carried over a communication mechanism internal to + * Google, you cannot explicitly set the protocol (for example, HTTP or HTTPS). + * The request to the handler, however, will appear to have used the HTTP + * protocol. * The [AppEngineRouting][google.cloud.tasks.v2beta3.AppEngineRouting] used to construct the URL that the task is * delivered to can be set at the queue-level or task-level: * * If set, @@ -32,6 +37,13 @@ * The `url` that the task will be sent to is: * * `url =` [host][google.cloud.tasks.v2beta3.AppEngineRouting.host] `+` * [relative_uri][google.cloud.tasks.v2beta3.AppEngineHttpRequest.relative_uri] + * Tasks can be dispatched to secure app handlers, unsecure app handlers, and + * URIs restricted with + * [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref). + * Because tasks are not run as any user, they cannot be dispatched to URIs + * restricted with + * [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref) + * Task dispatches also do not follow redirects. * The task attempt has succeeded if the app's request handler returns * an HTTP response code in the range [`200` - `299`]. `503` is * considered an App Engine system error instead of an application @@ -790,6 +802,11 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build * [How Requests are Routed](https://cloud.google.com/appengine/docs/standard/python/how-requests-are-routed) * and how routing is affected by * [dispatch files](https://cloud.google.com/appengine/docs/python/config/dispatchref). + * Traffic is encrypted during transport and never leaves Google datacenters. + * Because this traffic is carried over a communication mechanism internal to + * Google, you cannot explicitly set the protocol (for example, HTTP or HTTPS). + * The request to the handler, however, will appear to have used the HTTP + * protocol. * The [AppEngineRouting][google.cloud.tasks.v2beta3.AppEngineRouting] used to construct the URL that the task is * delivered to can be set at the queue-level or task-level: * * If set, @@ -800,6 +817,13 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build * The `url` that the task will be sent to is: * * `url =` [host][google.cloud.tasks.v2beta3.AppEngineRouting.host] `+` * [relative_uri][google.cloud.tasks.v2beta3.AppEngineHttpRequest.relative_uri] + * Tasks can be dispatched to secure app handlers, unsecure app handlers, and + * URIs restricted with + * [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref). + * Because tasks are not run as any user, they cannot be dispatched to URIs + * restricted with + * [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref) + * Task dispatches also do not follow redirects. * The task attempt has succeeded if the app's request handler returns * an HTTP response code in the range [`200` - `299`]. `503` is * considered an App Engine system error instead of an application diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineRouting.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineRouting.java index 1121b453c742..c5a492f23e95 100644 --- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineRouting.java +++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AppEngineRouting.java @@ -8,14 +8,8 @@ * * 
  * App Engine Routing.
- * Specifies the target URI. Since this target type dispatches tasks to secure
- * app handlers, unsecure app handlers, and URIs restricted with
- * [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
- * the protocol (for example, HTTP or HTTPS) cannot be explictly specified.
- * Task dispatches do not follow redirects and cannot target URI paths
- * restricted with
- * [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
- * because tasks are not run as any user.
+ * Defines routing characteristics specific to App Engine - service, version,
+ * and instance.
  * For more information about services, versions, and instances see
  * [An Overview of App Engine](https://cloud.google.com/appengine/docs/python/an-overview-of-app-engine),
  * [Microservices Architecture on Google App Engine](https://cloud.google.com/appengine/docs/python/microservices-on-app-engine),
@@ -572,14 +566,8 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    * 
    * App Engine Routing.
-   * Specifies the target URI. Since this target type dispatches tasks to secure
-   * app handlers, unsecure app handlers, and URIs restricted with
-   * [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
-   * the protocol (for example, HTTP or HTTPS) cannot be explictly specified.
-   * Task dispatches do not follow redirects and cannot target URI paths
-   * restricted with
-   * [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
-   * because tasks are not run as any user.
+   * Defines routing characteristics specific to App Engine - service, version,
+   * and instance.
    * For more information about services, versions, and instances see
    * [An Overview of App Engine](https://cloud.google.com/appengine/docs/python/an-overview-of-app-engine),
    * [Microservices Architecture on Google App Engine](https://cloud.google.com/appengine/docs/python/microservices-on-app-engine),
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Attempt.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Attempt.java
index cf5f399eacfc..87ed99dc269f 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Attempt.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Attempt.java
@@ -280,7 +280,7 @@ public com.google.protobuf.TimestampOrBuilder getResponseTimeOrBuilder() {
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

@@ -294,7 +294,7 @@ public boolean hasResponseStatus() {
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

@@ -308,7 +308,7 @@ public com.google.rpc.Status getResponseStatus() {
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

@@ -1309,7 +1309,7 @@ public com.google.protobuf.TimestampOrBuilder getResponseTimeOrBuilder() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1323,7 +1323,7 @@ public boolean hasResponseStatus() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1343,7 +1343,7 @@ public com.google.rpc.Status getResponseStatus() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1367,7 +1367,7 @@ public Builder setResponseStatus(com.google.rpc.Status value) {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1388,7 +1388,7 @@ public Builder setResponseStatus(com.google.rpc.Status.Builder builderForValue)
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1414,7 +1414,7 @@ public Builder mergeResponseStatus(com.google.rpc.Status value) {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1436,7 +1436,7 @@ public Builder clearResponseStatus() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1452,7 +1452,7 @@ public com.google.rpc.Status.Builder getResponseStatusBuilder() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

@@ -1472,7 +1472,7 @@ public com.google.rpc.StatusOrBuilder getResponseStatusOrBuilder() {
      *
      *
      * 
-     * Output only. The response from the target for this attempt.
+     * Output only. The response from the worker for this attempt.
      * If `response_time` is unset, then the task has not been attempted or is
      * currently running and the `response_status` field is meaningless.
      * 

diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AttemptOrBuilder.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AttemptOrBuilder.java
index 163787e92915..cd572113f6a9 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AttemptOrBuilder.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/AttemptOrBuilder.java
@@ -114,7 +114,7 @@ public interface AttemptOrBuilder
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

@@ -126,7 +126,7 @@ public interface AttemptOrBuilder
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

@@ -138,7 +138,7 @@ public interface AttemptOrBuilder
    *
    *
    * 
-   * Output only. The response from the target for this attempt.
+   * Output only. The response from the worker for this attempt.
    * If `response_time` is unset, then the task has not been attempted or is
    * currently running and the `response_status` field is meaningless.
    * 

diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/HttpMethod.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/HttpMethod.java
index e51b5f95602d..cae522cc6cce 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/HttpMethod.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/HttpMethod.java
@@ -73,6 +73,26 @@ public enum HttpMethod implements com.google.protobuf.ProtocolMessageEnum {
    * DELETE = 5;
    */
   DELETE(5),
+  /**
+   *
+   *
+   * 
+   * HTTP PATCH
+   * 

+   *
+   * PATCH = 6;
+   */
+  PATCH(6),
+  /**
+   *
+   *
+   * 
+   * HTTP OPTIONS
+   * 

+   *
+   * OPTIONS = 7;
+   */
+  OPTIONS(7),
   UNRECOGNIZED(-1),
   ;
 
@@ -136,6 +156,26 @@ public enum HttpMethod implements com.google.protobuf.ProtocolMessageEnum {
    * DELETE = 5;
    */
   public static final int DELETE_VALUE = 5;
+  /**
+   *
+   *
+   * 
+   * HTTP PATCH
+   * 

+   *
+   * PATCH = 6;
+   */
+  public static final int PATCH_VALUE = 6;
+  /**
+   *
+   *
+   * 
+   * HTTP OPTIONS
+   * 

+   *
+   * OPTIONS = 7;
+   */
+  public static final int OPTIONS_VALUE = 7;
 
   public final int getNumber() {
     if (this == UNRECOGNIZED) {
@@ -165,6 +205,10 @@ public static HttpMethod forNumber(int value) {
         return PUT;
       case 5:
         return DELETE;
+      case 6:
+        return PATCH;
+      case 7:
+        return OPTIONS;
       default:
         return null;
     }
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Queue.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Queue.java
index f2a2da25fa21..7e6dbbc8336b 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Queue.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Queue.java
@@ -221,9 +221,11 @@ public enum State implements com.google.protobuf.ProtocolMessageEnum {
      * 
      * The queue is disabled.
      * A queue becomes `DISABLED` when
-     * [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref) or
-     * [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref) is uploaded
-     * which does not contain the queue. You cannot directly disable a queue.
+     * [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref)
+     * or
+     * [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref)
+     * is uploaded which does not contain the queue. You cannot directly disable
+     * a queue.
      * When a queue is disabled, tasks can still be added to a queue
      * but the tasks are not dispatched.
      * To permanently delete this queue and all of its tasks, call
@@ -280,9 +282,11 @@ public enum State implements com.google.protobuf.ProtocolMessageEnum {
      * 
      * The queue is disabled.
      * A queue becomes `DISABLED` when
-     * [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref) or
-     * [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref) is uploaded
-     * which does not contain the queue. You cannot directly disable a queue.
+     * [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref)
+     * or
+     * [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref)
+     * is uploaded which does not contain the queue. You cannot directly disable
+     * a queue.
      * When a queue is disabled, tasks can still be added to a queue
      * but the tasks are not dispatched.
      * To permanently delete this queue and all of its tasks, call
@@ -479,8 +483,8 @@ public com.google.protobuf.ByteString getNameBytes() {
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -492,8 +496,8 @@ public boolean hasAppEngineHttpQueue() {
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -508,8 +512,8 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpQueue getAppEngineHttpQueue()
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -529,10 +533,9 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpQueue getAppEngineHttpQueue()
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -541,6 +544,14 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpQueue getAppEngineHttpQueue()
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -553,10 +564,9 @@ public boolean hasRateLimits() {
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -565,6 +575,14 @@ public boolean hasRateLimits() {
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -579,10 +597,9 @@ public com.google.cloud.tasks.v2beta3.RateLimits getRateLimits() {
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -591,6 +608,14 @@ public com.google.cloud.tasks.v2beta3.RateLimits getRateLimits() {
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1406,8 +1431,8 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1419,8 +1444,8 @@ public boolean hasAppEngineHttpQueue() {
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1442,8 +1467,8 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpQueue getAppEngineHttpQueue()
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1465,8 +1490,8 @@ public Builder setAppEngineHttpQueue(com.google.cloud.tasks.v2beta3.AppEngineHtt
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1486,8 +1511,8 @@ public Builder setAppEngineHttpQueue(
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1520,8 +1545,8 @@ public Builder mergeAppEngineHttpQueue(
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1546,8 +1571,8 @@ public Builder clearAppEngineHttpQueue() {
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1560,8 +1585,8 @@ public Builder clearAppEngineHttpQueue() {
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1581,8 +1606,8 @@ public Builder clearAppEngineHttpQueue() {
      *
      *
      * 
-     * App Engine HTTP queue.
-     * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+     * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+     * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
      * 

      *
      * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -1623,10 +1648,9 @@ public Builder clearAppEngineHttpQueue() {
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1635,6 +1659,14 @@ public Builder clearAppEngineHttpQueue() {
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1647,10 +1679,9 @@ public boolean hasRateLimits() {
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1659,6 +1690,14 @@ public boolean hasRateLimits() {
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1677,10 +1716,9 @@ public com.google.cloud.tasks.v2beta3.RateLimits getRateLimits() {
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1689,6 +1727,14 @@ public com.google.cloud.tasks.v2beta3.RateLimits getRateLimits() {
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1711,10 +1757,9 @@ public Builder setRateLimits(com.google.cloud.tasks.v2beta3.RateLimits value) {
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1723,6 +1768,14 @@ public Builder setRateLimits(com.google.cloud.tasks.v2beta3.RateLimits value) {
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1743,10 +1796,9 @@ public Builder setRateLimits(
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1755,6 +1807,14 @@ public Builder setRateLimits(
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1781,10 +1841,9 @@ public Builder mergeRateLimits(com.google.cloud.tasks.v2beta3.RateLimits value)
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1793,6 +1852,14 @@ public Builder mergeRateLimits(com.google.cloud.tasks.v2beta3.RateLimits value)
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1813,10 +1880,9 @@ public Builder clearRateLimits() {
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1825,6 +1891,14 @@ public Builder clearRateLimits() {
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1839,10 +1913,9 @@ public com.google.cloud.tasks.v2beta3.RateLimits.Builder getRateLimitsBuilder()
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1851,6 +1924,14 @@ public com.google.cloud.tasks.v2beta3.RateLimits.Builder getRateLimitsBuilder()
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -1869,10 +1950,9 @@ public com.google.cloud.tasks.v2beta3.RateLimitsOrBuilder getRateLimitsOrBuilder
      *
      * 
      * Rate limits for task dispatches.
-     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-     * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-     * control task attempts however they control how tasks are
-     * attempted in different ways:
+     * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+     * related because they both control task attempts. However they control task
+     * attempts in different ways:
      * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
      *   dispatches from a queue (i.e. all traffic dispatched from the
      *   queue, regardless of whether the dispatch is from a first
@@ -1881,6 +1961,14 @@ public com.google.cloud.tasks.v2beta3.RateLimitsOrBuilder getRateLimitsOrBuilder
      *   particular a task after its first attempt fails. That is,
      *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
      *   second attempt, third attempt, etc).
+     * The queue's actual dispatch rate is the result of:
+     * * Number of tasks in the queue
+     * * User-specified throttling: [rate limits][Queue.RateLimits]
+     *   [retry configuration][Queue.RetryConfig], and the
+     *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+     * * System throttling due to `429` (Too Many Requests) or `503` (Service
+     *   Unavailable) responses from the worker, high error rates, or to smooth
+     *   sudden large traffic spikes.
      * 

      *
      * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/QueueOrBuilder.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/QueueOrBuilder.java
index 13288cd55ef9..8cbc8f4e289a 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/QueueOrBuilder.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/QueueOrBuilder.java
@@ -61,8 +61,8 @@ public interface QueueOrBuilder
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -72,8 +72,8 @@ public interface QueueOrBuilder
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -83,8 +83,8 @@ public interface QueueOrBuilder
    *
    *
    * 
-   * App Engine HTTP queue.
-   * An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+   * [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+   * [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
    * 

    *
    * .google.cloud.tasks.v2beta3.AppEngineHttpQueue app_engine_http_queue = 3;
@@ -96,10 +96,9 @@ public interface QueueOrBuilder
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -108,6 +107,14 @@ public interface QueueOrBuilder
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -118,10 +125,9 @@ public interface QueueOrBuilder
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -130,6 +136,14 @@ public interface QueueOrBuilder
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
@@ -140,10 +154,9 @@ public interface QueueOrBuilder
    *
    * 
    * Rate limits for task dispatches.
-   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-   * [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-   * control task attempts however they control how tasks are
-   * attempted in different ways:
+   * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+   * related because they both control task attempts. However they control task
+   * attempts in different ways:
    * * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
    *   dispatches from a queue (i.e. all traffic dispatched from the
    *   queue, regardless of whether the dispatch is from a first
@@ -152,6 +165,14 @@ public interface QueueOrBuilder
    *   particular a task after its first attempt fails. That is,
    *   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
    *   second attempt, third attempt, etc).
+   * The queue's actual dispatch rate is the result of:
+   * * Number of tasks in the queue
+   * * User-specified throttling: [rate limits][Queue.RateLimits]
+   *   [retry configuration][Queue.RetryConfig], and the
+   *   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+   * * System throttling due to `429` (Too Many Requests) or `503` (Service
+   *   Unavailable) responses from the worker, high error rates, or to smooth
+   *   sudden large traffic spikes.
    * 

    *
    * .google.cloud.tasks.v2beta3.RateLimits rate_limits = 4;
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TargetProto.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TargetProto.java
index e7eb5748e789..5648bc9c4cab 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TargetProto.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TargetProto.java
@@ -52,12 +52,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "\032.\n\014HeadersEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002"
           + " \001(\t:\0028\001\"T\n\020AppEngineRouting\022\017\n\007service\030"
           + "\001 \001(\t\022\017\n\007version\030\002 \001(\t\022\020\n\010instance\030\003 \001(\t"
-          + "\022\014\n\004host\030\004 \001(\t*[\n\nHttpMethod\022\033\n\027HTTP_MET"
+          + "\022\014\n\004host\030\004 \001(\t*s\n\nHttpMethod\022\033\n\027HTTP_MET"
           + "HOD_UNSPECIFIED\020\000\022\010\n\004POST\020\001\022\007\n\003GET\020\002\022\010\n\004"
-          + "HEAD\020\003\022\007\n\003PUT\020\004\022\n\n\006DELETE\020\005Bp\n\036com.googl"
-          + "e.cloud.tasks.v2beta3B\013TargetProtoP\001Z?go"
-          + "ogle.golang.org/genproto/googleapis/clou"
-          + "d/tasks/v2beta3;tasksb\006proto3"
+          + "HEAD\020\003\022\007\n\003PUT\020\004\022\n\n\006DELETE\020\005\022\t\n\005PATCH\020\006\022\013"
+          + "\n\007OPTIONS\020\007Bp\n\036com.google.cloud.tasks.v2"
+          + "beta3B\013TargetProtoP\001Z?google.golang.org/"
+          + "genproto/googleapis/cloud/tasks/v2beta3;"
+          + "tasksb\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Task.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Task.java
index fc23cf782ecd..bb1e6a303427 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Task.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Task.java
@@ -157,6 +157,21 @@ private Task(
               int rawValue = input.readEnum();
 
               view_ = rawValue;
+              break;
+            }
+          case 98:
+            {
+              com.google.protobuf.Duration.Builder subBuilder = null;
+              if (dispatchDeadline_ != null) {
+                subBuilder = dispatchDeadline_.toBuilder();
+              }
+              dispatchDeadline_ =
+                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(dispatchDeadline_);
+                dispatchDeadline_ = subBuilder.buildPartial();
+              }
+
               break;
             }
           default:
@@ -476,10 +491,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -492,10 +504,7 @@ public boolean hasAppEngineHttpRequest() {
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -511,10 +520,7 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpRequest getAppEngineHttpReque
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -617,6 +623,113 @@ public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
     return getCreateTime();
   }
 
+  public static final int DISPATCH_DEADLINE_FIELD_NUMBER = 12;
+  private com.google.protobuf.Duration dispatchDeadline_;
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  public boolean hasDispatchDeadline() {
+    return dispatchDeadline_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  public com.google.protobuf.Duration getDispatchDeadline() {
+    return dispatchDeadline_ == null
+        ? com.google.protobuf.Duration.getDefaultInstance()
+        : dispatchDeadline_;
+  }
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  public com.google.protobuf.DurationOrBuilder getDispatchDeadlineOrBuilder() {
+    return getDispatchDeadline();
+  }
+
   public static final int DISPATCH_COUNT_FIELD_NUMBER = 6;
   private int dispatchCount_;
   /**
@@ -810,6 +923,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (view_ != com.google.cloud.tasks.v2beta3.Task.View.VIEW_UNSPECIFIED.getNumber()) {
       output.writeEnum(10, view_);
     }
+    if (dispatchDeadline_ != null) {
+      output.writeMessage(12, getDispatchDeadline());
+    }
     unknownFields.writeTo(output);
   }
 
@@ -848,6 +964,9 @@ public int getSerializedSize() {
     if (view_ != com.google.cloud.tasks.v2beta3.Task.View.VIEW_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(10, view_);
     }
+    if (dispatchDeadline_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(12, getDispatchDeadline());
+    }
     size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
@@ -873,6 +992,10 @@ public boolean equals(final java.lang.Object obj) {
     if (hasCreateTime()) {
       result = result && getCreateTime().equals(other.getCreateTime());
     }
+    result = result && (hasDispatchDeadline() == other.hasDispatchDeadline());
+    if (hasDispatchDeadline()) {
+      result = result && getDispatchDeadline().equals(other.getDispatchDeadline());
+    }
     result = result && (getDispatchCount() == other.getDispatchCount());
     result = result && (getResponseCount() == other.getResponseCount());
     result = result && (hasFirstAttempt() == other.hasFirstAttempt());
@@ -914,6 +1037,10 @@ public int hashCode() {
       hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
       hash = (53 * hash) + getCreateTime().hashCode();
     }
+    if (hasDispatchDeadline()) {
+      hash = (37 * hash) + DISPATCH_DEADLINE_FIELD_NUMBER;
+      hash = (53 * hash) + getDispatchDeadline().hashCode();
+    }
     hash = (37 * hash) + DISPATCH_COUNT_FIELD_NUMBER;
     hash = (53 * hash) + getDispatchCount();
     hash = (37 * hash) + RESPONSE_COUNT_FIELD_NUMBER;
@@ -1094,6 +1221,12 @@ public Builder clear() {
         createTime_ = null;
         createTimeBuilder_ = null;
       }
+      if (dispatchDeadlineBuilder_ == null) {
+        dispatchDeadline_ = null;
+      } else {
+        dispatchDeadline_ = null;
+        dispatchDeadlineBuilder_ = null;
+      }
       dispatchCount_ = 0;
 
       responseCount_ = 0;
@@ -1158,6 +1291,11 @@ public com.google.cloud.tasks.v2beta3.Task buildPartial() {
       } else {
         result.createTime_ = createTimeBuilder_.build();
       }
+      if (dispatchDeadlineBuilder_ == null) {
+        result.dispatchDeadline_ = dispatchDeadline_;
+      } else {
+        result.dispatchDeadline_ = dispatchDeadlineBuilder_.build();
+      }
       result.dispatchCount_ = dispatchCount_;
       result.responseCount_ = responseCount_;
       if (firstAttemptBuilder_ == null) {
@@ -1231,6 +1369,9 @@ public Builder mergeFrom(com.google.cloud.tasks.v2beta3.Task other) {
       if (other.hasCreateTime()) {
         mergeCreateTime(other.getCreateTime());
       }
+      if (other.hasDispatchDeadline()) {
+        mergeDispatchDeadline(other.getDispatchDeadline());
+      }
       if (other.getDispatchCount() != 0) {
         setDispatchCount(other.getDispatchCount());
       }
@@ -1478,10 +1619,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1494,10 +1632,7 @@ public boolean hasAppEngineHttpRequest() {
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1520,10 +1655,7 @@ public com.google.cloud.tasks.v2beta3.AppEngineHttpRequest getAppEngineHttpReque
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1547,10 +1679,7 @@ public Builder setAppEngineHttpRequest(
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1571,10 +1700,7 @@ public Builder setAppEngineHttpRequest(
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1608,10 +1734,7 @@ public Builder mergeAppEngineHttpRequest(
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1637,10 +1760,7 @@ public Builder clearAppEngineHttpRequest() {
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1654,10 +1774,7 @@ public Builder clearAppEngineHttpRequest() {
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -1678,10 +1795,7 @@ public Builder clearAppEngineHttpRequest() {
      *
      *
      * 
-     * App Engine HTTP request that is sent to the task's target. Can
-     * be set only if
-     * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-     * on the queue.
+     * HTTP request that is sent to the App Engine app handler.
      * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
      * 

      *
@@ -2099,6 +2213,385 @@ public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
       return createTimeBuilder_;
     }
 
+    private com.google.protobuf.Duration dispatchDeadline_ = null;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        dispatchDeadlineBuilder_;
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public boolean hasDispatchDeadline() {
+      return dispatchDeadlineBuilder_ != null || dispatchDeadline_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public com.google.protobuf.Duration getDispatchDeadline() {
+      if (dispatchDeadlineBuilder_ == null) {
+        return dispatchDeadline_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : dispatchDeadline_;
+      } else {
+        return dispatchDeadlineBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public Builder setDispatchDeadline(com.google.protobuf.Duration value) {
+      if (dispatchDeadlineBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        dispatchDeadline_ = value;
+        onChanged();
+      } else {
+        dispatchDeadlineBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public Builder setDispatchDeadline(com.google.protobuf.Duration.Builder builderForValue) {
+      if (dispatchDeadlineBuilder_ == null) {
+        dispatchDeadline_ = builderForValue.build();
+        onChanged();
+      } else {
+        dispatchDeadlineBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public Builder mergeDispatchDeadline(com.google.protobuf.Duration value) {
+      if (dispatchDeadlineBuilder_ == null) {
+        if (dispatchDeadline_ != null) {
+          dispatchDeadline_ =
+              com.google.protobuf.Duration.newBuilder(dispatchDeadline_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          dispatchDeadline_ = value;
+        }
+        onChanged();
+      } else {
+        dispatchDeadlineBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public Builder clearDispatchDeadline() {
+      if (dispatchDeadlineBuilder_ == null) {
+        dispatchDeadline_ = null;
+        onChanged();
+      } else {
+        dispatchDeadline_ = null;
+        dispatchDeadlineBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public com.google.protobuf.Duration.Builder getDispatchDeadlineBuilder() {
+
+      onChanged();
+      return getDispatchDeadlineFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    public com.google.protobuf.DurationOrBuilder getDispatchDeadlineOrBuilder() {
+      if (dispatchDeadlineBuilder_ != null) {
+        return dispatchDeadlineBuilder_.getMessageOrBuilder();
+      } else {
+        return dispatchDeadline_ == null
+            ? com.google.protobuf.Duration.getDefaultInstance()
+            : dispatchDeadline_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The deadline for requests sent to the worker. If the worker does not
+     * respond by this deadline then the request is cancelled and the attempt
+     * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+     * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+     * Note that when the request is cancelled, Cloud Tasks will stop listing for
+     * the response, but whether the worker stops processing depends on the
+     * worker. For example, if the worker is stuck, it may not react to cancelled
+     * requests.
+     * The default and maximum values depend on the type of request:
+     * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+     *   request has the default deadline. The default deadline depends on the
+     *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+     *   of the service: 10 minutes for standard apps with automatic scaling, 24
+     *   hours for standard apps with manual and basic scaling, and 60 minutes for
+     *   flex apps. If the request deadline is set, it must be in the interval [15
+     *   seconds, 24 hours 15 seconds]. Regardless of the task's
+     *   `dispatch_deadline`, the app handler will not run for longer than than
+     *   the service's timeout. We recommend setting the `dispatch_deadline` to
+     *   at most a few seconds more than the app handler's timeout. For more
+     *   information see
+     *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+     * `dispatch_deadline` will be truncated to the nearest millisecond. The
+     * deadline is an approximate deadline.
+     * 

+     *
+     * .google.protobuf.Duration dispatch_deadline = 12;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Duration,
+            com.google.protobuf.Duration.Builder,
+            com.google.protobuf.DurationOrBuilder>
+        getDispatchDeadlineFieldBuilder() {
+      if (dispatchDeadlineBuilder_ == null) {
+        dispatchDeadlineBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Duration,
+                com.google.protobuf.Duration.Builder,
+                com.google.protobuf.DurationOrBuilder>(
+                getDispatchDeadline(), getParentForChildren(), isClean());
+        dispatchDeadline_ = null;
+      }
+      return dispatchDeadlineBuilder_;
+    }
+
     private int dispatchCount_;
     /**
      *
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskOrBuilder.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskOrBuilder.java
index 1bc1624d989a..e4a3d509d648 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskOrBuilder.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskOrBuilder.java
@@ -63,10 +63,7 @@ public interface TaskOrBuilder
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -77,10 +74,7 @@ public interface TaskOrBuilder
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -91,10 +85,7 @@ public interface TaskOrBuilder
    *
    *
    * 
-   * App Engine HTTP request that is sent to the task's target. Can
-   * be set only if
-   * [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-   * on the queue.
+   * HTTP request that is sent to the App Engine app handler.
    * An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
    * 

    *
@@ -173,6 +164,103 @@ public interface TaskOrBuilder
    */
   com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
 
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  boolean hasDispatchDeadline();
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  com.google.protobuf.Duration getDispatchDeadline();
+  /**
+   *
+   *
+   * 
+   * The deadline for requests sent to the worker. If the worker does not
+   * respond by this deadline then the request is cancelled and the attempt
+   * is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+   * task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+   * Note that when the request is cancelled, Cloud Tasks will stop listing for
+   * the response, but whether the worker stops processing depends on the
+   * worker. For example, if the worker is stuck, it may not react to cancelled
+   * requests.
+   * The default and maximum values depend on the type of request:
+   * * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+   *   request has the default deadline. The default deadline depends on the
+   *   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+   *   of the service: 10 minutes for standard apps with automatic scaling, 24
+   *   hours for standard apps with manual and basic scaling, and 60 minutes for
+   *   flex apps. If the request deadline is set, it must be in the interval [15
+   *   seconds, 24 hours 15 seconds]. Regardless of the task's
+   *   `dispatch_deadline`, the app handler will not run for longer than than
+   *   the service's timeout. We recommend setting the `dispatch_deadline` to
+   *   at most a few seconds more than the app handler's timeout. For more
+   *   information see
+   *   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+   * `dispatch_deadline` will be truncated to the nearest millisecond. The
+   * deadline is an approximate deadline.
+   * 

+   *
+   * .google.protobuf.Duration dispatch_deadline = 12;
+   */
+  com.google.protobuf.DurationOrBuilder getDispatchDeadlineOrBuilder();
+
   /**
    *
    *
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskProto.java b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskProto.java
index fbffa013bcd0..4626a02162e9 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskProto.java
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/TaskProto.java
@@ -32,29 +32,31 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
       "\n%google/cloud/tasks/v2beta3/task.proto\022"
           + "\032google.cloud.tasks.v2beta3\032\034google/api/"
           + "annotations.proto\032\'google/cloud/tasks/v2"
-          + "beta3/target.proto\032\037google/protobuf/time"
-          + "stamp.proto\032\027google/rpc/status.proto\"\354\003\n"
-          + "\004Task\022\014\n\004name\030\001 \001(\t\022S\n\027app_engine_http_r"
-          + "equest\030\003 \001(\01320.google.cloud.tasks.v2beta"
-          + "3.AppEngineHttpRequestH\000\0221\n\rschedule_tim"
-          + "e\030\004 \001(\0132\032.google.protobuf.Timestamp\022/\n\013c"
-          + "reate_time\030\005 \001(\0132\032.google.protobuf.Times"
-          + "tamp\022\026\n\016dispatch_count\030\006 \001(\005\022\026\n\016response"
-          + "_count\030\007 \001(\005\022:\n\rfirst_attempt\030\010 \001(\0132#.go"
-          + "ogle.cloud.tasks.v2beta3.Attempt\0229\n\014last"
-          + "_attempt\030\t \001(\0132#.google.cloud.tasks.v2be"
-          + "ta3.Attempt\0223\n\004view\030\n \001(\0162%.google.cloud"
-          + ".tasks.v2beta3.Task.View\"1\n\004View\022\024\n\020VIEW"
-          + "_UNSPECIFIED\020\000\022\t\n\005BASIC\020\001\022\010\n\004FULL\020\002B\016\n\014p"
-          + "ayload_type\"\317\001\n\007Attempt\0221\n\rschedule_time"
-          + "\030\001 \001(\0132\032.google.protobuf.Timestamp\0221\n\rdi"
-          + "spatch_time\030\002 \001(\0132\032.google.protobuf.Time"
-          + "stamp\0221\n\rresponse_time\030\003 \001(\0132\032.google.pr"
-          + "otobuf.Timestamp\022+\n\017response_status\030\004 \001("
-          + "\0132\022.google.rpc.StatusBn\n\036com.google.clou"
-          + "d.tasks.v2beta3B\tTaskProtoP\001Z?google.gol"
-          + "ang.org/genproto/googleapis/cloud/tasks/"
-          + "v2beta3;tasksb\006proto3"
+          + "beta3/target.proto\032\036google/protobuf/dura"
+          + "tion.proto\032\037google/protobuf/timestamp.pr"
+          + "oto\032\027google/rpc/status.proto\"\242\004\n\004Task\022\014\n"
+          + "\004name\030\001 \001(\t\022S\n\027app_engine_http_request\030\003"
+          + " \001(\01320.google.cloud.tasks.v2beta3.AppEng"
+          + "ineHttpRequestH\000\0221\n\rschedule_time\030\004 \001(\0132"
+          + "\032.google.protobuf.Timestamp\022/\n\013create_ti"
+          + "me\030\005 \001(\0132\032.google.protobuf.Timestamp\0224\n\021"
+          + "dispatch_deadline\030\014 \001(\0132\031.google.protobu"
+          + "f.Duration\022\026\n\016dispatch_count\030\006 \001(\005\022\026\n\016re"
+          + "sponse_count\030\007 \001(\005\022:\n\rfirst_attempt\030\010 \001("
+          + "\0132#.google.cloud.tasks.v2beta3.Attempt\0229"
+          + "\n\014last_attempt\030\t \001(\0132#.google.cloud.task"
+          + "s.v2beta3.Attempt\0223\n\004view\030\n \001(\0162%.google"
+          + ".cloud.tasks.v2beta3.Task.View\"1\n\004View\022\024"
+          + "\n\020VIEW_UNSPECIFIED\020\000\022\t\n\005BASIC\020\001\022\010\n\004FULL\020"
+          + "\002B\016\n\014payload_type\"\317\001\n\007Attempt\0221\n\rschedul"
+          + "e_time\030\001 \001(\0132\032.google.protobuf.Timestamp"
+          + "\0221\n\rdispatch_time\030\002 \001(\0132\032.google.protobu"
+          + "f.Timestamp\0221\n\rresponse_time\030\003 \001(\0132\032.goo"
+          + "gle.protobuf.Timestamp\022+\n\017response_statu"
+          + "s\030\004 \001(\0132\022.google.rpc.StatusBn\n\036com.googl"
+          + "e.cloud.tasks.v2beta3B\tTaskProtoP\001Z?goog"
+          + "le.golang.org/genproto/googleapis/cloud/"
+          + "tasks/v2beta3;tasksb\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -69,6 +71,7 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
         new com.google.protobuf.Descriptors.FileDescriptor[] {
           com.google.api.AnnotationsProto.getDescriptor(),
           com.google.cloud.tasks.v2beta3.TargetProto.getDescriptor(),
+          com.google.protobuf.DurationProto.getDescriptor(),
           com.google.protobuf.TimestampProto.getDescriptor(),
           com.google.rpc.StatusProto.getDescriptor(),
         },
@@ -83,6 +86,7 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
               "AppEngineHttpRequest",
               "ScheduleTime",
               "CreateTime",
+              "DispatchDeadline",
               "DispatchCount",
               "ResponseCount",
               "FirstAttempt",
@@ -100,6 +104,7 @@ public com.google.protobuf.ExtensionRegistry assignDescriptors(
             });
     com.google.api.AnnotationsProto.getDescriptor();
     com.google.cloud.tasks.v2beta3.TargetProto.getDescriptor();
+    com.google.protobuf.DurationProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
     com.google.rpc.StatusProto.getDescriptor();
   }
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/queue.proto b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/queue.proto
index 5448e85d4fe9..4b6b92663651 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/queue.proto
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/queue.proto
@@ -55,9 +55,11 @@ message Queue {
     // The queue is disabled.
     //
     // A queue becomes `DISABLED` when
-    // [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref) or
-    // [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref) is uploaded
-    // which does not contain the queue. You cannot directly disable a queue.
+    // [queue.yaml](https://cloud.google.com/appengine/docs/python/config/queueref)
+    // or
+    // [queue.xml](https://cloud.google.com/appengine/docs/standard/java/config/queueref)
+    // is uploaded which does not contain the queue. You cannot directly disable
+    // a queue.
     //
     // When a queue is disabled, tasks can still be added to a queue
     // but the tasks are not dispatched.
@@ -87,26 +89,17 @@ message Queue {
   //   hyphens (-). The maximum length is 100 characters.
   string name = 1;
 
-  // Caller-specified and required in [CreateQueue][google.cloud.tasks.v2beta3.CloudTasks.CreateQueue][],
-  // after which the queue config type becomes output only, though fields within
-  // the config are mutable.
-  //
-  // The queue's type.
-  //
-  // The type applies to all tasks in the queue.
   oneof queue_type {
-    // App Engine HTTP queue.
-    //
-    // An App Engine queue is a queue that has an [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] type.
+    // [AppEngineHttpQueue][google.cloud.tasks.v2beta3.AppEngineHttpQueue] settings apply only to
+    // [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest] in this queue.
     AppEngineHttpQueue app_engine_http_queue = 3;
   }
 
   // Rate limits for task dispatches.
   //
-  // [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and
-  // [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are related because they both
-  // control task attempts however they control how tasks are
-  // attempted in different ways:
+  // [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] and [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] are
+  // related because they both control task attempts. However they control task
+  // attempts in different ways:
   //
   // * [rate_limits][google.cloud.tasks.v2beta3.Queue.rate_limits] controls the total rate of
   //   dispatches from a queue (i.e. all traffic dispatched from the
@@ -116,6 +109,16 @@ message Queue {
   //   particular a task after its first attempt fails. That is,
   //   [retry_config][google.cloud.tasks.v2beta3.Queue.retry_config] controls task retries (the
   //   second attempt, third attempt, etc).
+  //
+  // The queue's actual dispatch rate is the result of:
+  //
+  // * Number of tasks in the queue
+  // * User-specified throttling: [rate limits][Queue.RateLimits]
+  //   [retry configuration][Queue.RetryConfig], and the
+  //   [queue's state][google.cloud.tasks.v2beta3.Queue.state].
+  // * System throttling due to `429` (Too Many Requests) or `503` (Service
+  //   Unavailable) responses from the worker, high error rates, or to smooth
+  //   sudden large traffic spikes.
   RateLimits rate_limits = 4;
 
   // Settings that determine the retry behavior.
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/target.proto b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/target.proto
index 58092ed8bf30..087249f93d2c 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/target.proto
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/target.proto
@@ -68,6 +68,11 @@ message AppEngineHttpQueue {
 // [How Requests are Routed](https://cloud.google.com/appengine/docs/standard/python/how-requests-are-routed)
 // and how routing is affected by
 // [dispatch files](https://cloud.google.com/appengine/docs/python/config/dispatchref).
+// Traffic is encrypted during transport and never leaves Google datacenters.
+// Because this traffic is carried over a communication mechanism internal to
+// Google, you cannot explicitly set the protocol (for example, HTTP or HTTPS).
+// The request to the handler, however, will appear to have used the HTTP
+// protocol.
 //
 // The [AppEngineRouting][google.cloud.tasks.v2beta3.AppEngineRouting] used to construct the URL that the task is
 // delivered to can be set at the queue-level or task-level:
@@ -84,6 +89,14 @@ message AppEngineHttpQueue {
 // * `url =` [host][google.cloud.tasks.v2beta3.AppEngineRouting.host] `+`
 //   [relative_uri][google.cloud.tasks.v2beta3.AppEngineHttpRequest.relative_uri]
 //
+// Tasks can be dispatched to secure app handlers, unsecure app handlers, and
+// URIs restricted with
+// [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref).
+// Because tasks are not run as any user, they cannot be dispatched to URIs
+// restricted with
+// [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
+// Task dispatches also do not follow redirects.
+//
 // The task attempt has succeeded if the app's request handler returns
 // an HTTP response code in the range [`200` - `299`]. `503` is
 // considered an App Engine system error instead of an application
@@ -171,14 +184,8 @@ message AppEngineHttpRequest {
 
 // App Engine Routing.
 //
-// Specifies the target URI. Since this target type dispatches tasks to secure
-// app handlers, unsecure app handlers, and URIs restricted with
-// [`login: admin`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
-// the protocol (for example, HTTP or HTTPS) cannot be explictly specified.
-// Task dispatches do not follow redirects and cannot target URI paths
-// restricted with
-// [`login: required`](https://cloud.google.com/appengine/docs/standard/python/config/appref)
-// because tasks are not run as any user.
+// Defines routing characteristics specific to App Engine - service, version,
+// and instance.
 //
 // For more information about services, versions, and instances see
 // [An Overview of App Engine](https://cloud.google.com/appengine/docs/python/an-overview-of-app-engine),
@@ -266,4 +273,10 @@ enum HttpMethod {
 
   // HTTP DELETE
   DELETE = 5;
+
+  // HTTP PATCH
+  PATCH = 6;
+
+  // HTTP OPTIONS
+  OPTIONS = 7;
 }
diff --git a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/task.proto b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/task.proto
index 2a7de02b9995..46026f70e62f 100644
--- a/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/task.proto
+++ b/google-api-grpc/proto-google-cloud-tasks-v2beta3/src/main/proto/google/cloud/tasks/v2beta3/task.proto
@@ -19,6 +19,7 @@ package google.cloud.tasks.v2beta3;
 
 import "google/api/annotations.proto";
 import "google/cloud/tasks/v2beta3/target.proto";
+import "google/protobuf/duration.proto";
 import "google/protobuf/timestamp.proto";
 import "google/rpc/status.proto";
 
@@ -80,15 +81,9 @@ message Task {
   //   hyphens (-), or underscores (_). The maximum length is 500 characters.
   string name = 1;
 
-  // Required.
-  //
-  // The task's payload is used by the task's target to process the task.
-  // A payload is valid only if it is compatible with the queue's target.
+  // Required. The message to send to the worker.
   oneof payload_type {
-    // App Engine HTTP request that is sent to the task's target. Can
-    // be set only if
-    // [app_engine_http_queue][google.cloud.tasks.v2beta3.Queue.app_engine_http_queue] is set
-    // on the queue.
+    // HTTP request that is sent to the App Engine app handler.
     //
     // An App Engine task is a task that has [AppEngineHttpRequest][google.cloud.tasks.v2beta3.AppEngineHttpRequest] set.
     AppEngineHttpRequest app_engine_http_request = 3;
@@ -106,6 +101,36 @@ message Task {
   // `create_time` will be truncated to the nearest second.
   google.protobuf.Timestamp create_time = 5;
 
+  // The deadline for requests sent to the worker. If the worker does not
+  // respond by this deadline then the request is cancelled and the attempt
+  // is marked as a `DEADLINE_EXCEEDED` failure. Cloud Tasks will retry the
+  // task according to the [RetryConfig][google.cloud.tasks.v2beta3.RetryConfig].
+  //
+  // Note that when the request is cancelled, Cloud Tasks will stop listing for
+  // the response, but whether the worker stops processing depends on the
+  // worker. For example, if the worker is stuck, it may not react to cancelled
+  // requests.
+  //
+  // The default and maximum values depend on the type of request:
+  //
+  //
+  // * For [App Engine tasks][google.cloud.tasks.v2beta3.AppEngineHttpRequest], 0 indicates that the
+  //   request has the default deadline. The default deadline depends on the
+  //   [scaling type](https://cloud.google.com/appengine/docs/standard/go/how-instances-are-managed#instance_scaling)
+  //   of the service: 10 minutes for standard apps with automatic scaling, 24
+  //   hours for standard apps with manual and basic scaling, and 60 minutes for
+  //   flex apps. If the request deadline is set, it must be in the interval [15
+  //   seconds, 24 hours 15 seconds]. Regardless of the task's
+  //   `dispatch_deadline`, the app handler will not run for longer than than
+  //   the service's timeout. We recommend setting the `dispatch_deadline` to
+  //   at most a few seconds more than the app handler's timeout. For more
+  //   information see
+  //   [Timeouts](https://cloud.google.com/tasks/docs/creating-appengine-handlers#timeouts).
+  //
+  // `dispatch_deadline` will be truncated to the nearest millisecond. The
+  // deadline is an approximate deadline.
+  google.protobuf.Duration dispatch_deadline = 12;
+
   // Output only. The number of attempts dispatched.
   //
   // This count includes tasks which have been dispatched but haven't
@@ -146,7 +171,7 @@ message Attempt {
   // `response_time` will be truncated to the nearest microsecond.
   google.protobuf.Timestamp response_time = 3;
 
-  // Output only. The response from the target for this attempt.
+  // Output only. The response from the worker for this attempt.
   //
   // If `response_time` is unset, then the task has not been attempted or is
   // currently running and the `response_status` field is meaningless.
diff --git a/google-cloud-clients/google-cloud-tasks/synth.metadata b/google-cloud-clients/google-cloud-tasks/synth.metadata
index cd7ae9e69070..f64d2446efe3 100644
--- a/google-cloud-clients/google-cloud-tasks/synth.metadata
+++ b/google-cloud-clients/google-cloud-tasks/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-01-17T08:51:59.668739Z",
+  "updateTime": "2019-01-26T08:48:51.639044Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.6",
-        "dockerImage": "googleapis/artman@sha256:12722f2ca3fbc3b53cc6aa5f0e569d7d221b46bd876a2136497089dec5e3634e"
+        "version": "0.16.7",
+        "dockerImage": "googleapis/artman@sha256:d6c8ced606eb49973ca95d2af7c55a681acc042db0f87d135968349e7bf6dd80"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "0ac60e21a1aa86c07c1836865b35308ba8178b05",
-        "internalRef": "229626798"
+        "sha": "a6b4398490269577fc511f297b85763ba4701403",
+        "internalRef": "230969086"
       }
     }
   ],