diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/README.md b/clients/google-api-services-dialogflow/v2/2.0.0/README.md
index 544bdacce7a..6831ead4bd1 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/README.md
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v2-rev20260716-2.0.0</version>
+      <version>v2-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v2-rev20260716-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v2-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3Fulfillment.java b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3Fulfillment.java
index 8b30fc530c9..4441796ab81 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3Fulfillment extends com.google.api.c
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3Fulfillment setAdvancedSettings(GoogleCloudDialo
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
index dc0c8ff96e5..d7bf085f663 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3beta1Fulfillment extends com.google.
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3beta1AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3beta1Fulfillment setAdvancedSettings(GoogleCloud
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3beta1Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index 29f3d6a98b0..aca2d6a1081 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -41,6 +41,30 @@ public final class GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGeneratio
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -77,6 +101,66 @@ public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo s
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index 50a9074a5b4..36b19174f9d 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/com/google/api/services/dialogflow/v2/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -42,6 +42,30 @@ public final class GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGene
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -78,6 +102,66 @@ public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugI
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2/2.0.0/pom.xml b/clients/google-api-services-dialogflow/v2/2.0.0/pom.xml
index 7b6882f6174..694305e6965 100644
--- a/clients/google-api-services-dialogflow/v2/2.0.0/pom.xml
+++ b/clients/google-api-services-dialogflow/v2/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-dialogflow</artifactId>
-  <version>v2-rev20260716-2.0.0</version>
-  <name>Dialogflow API v2-rev20260716-2.0.0</name>
+  <version>v2-rev20260808-2.0.0</version>
+  <name>Dialogflow API v2-rev20260808-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-dialogflow/v2/README.md b/clients/google-api-services-dialogflow/v2/README.md
index 544bdacce7a..6831ead4bd1 100644
--- a/clients/google-api-services-dialogflow/v2/README.md
+++ b/clients/google-api-services-dialogflow/v2/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v2-rev20260716-2.0.0</version>
+      <version>v2-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v2-rev20260716-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v2-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/README.md b/clients/google-api-services-dialogflow/v2beta1/2.0.0/README.md
index c82bfaeb775..266f4914710 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/README.md
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v2beta1-rev20260716-2.0.0</version>
+      <version>v2beta1-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v2beta1-rev20260716-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v2beta1-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
index 30d062c495f..c325e610f48 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3Fulfillment extends com.google.api.c
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3Fulfillment setAdvancedSettings(GoogleCloudDialo
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
index e5b5dcf1ac2..2f55fc9fb42 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3beta1Fulfillment extends com.google.
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3beta1AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3beta1Fulfillment setAdvancedSettings(GoogleCloud
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3beta1Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index 21902524261..3ffa7353b75 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -41,6 +41,30 @@ public final class GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGeneratio
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -77,6 +101,66 @@ public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo s
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index 47fd6e37870..29bcef29043 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/com/google/api/services/dialogflow/v2beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -42,6 +42,30 @@ public final class GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGene
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -78,6 +102,66 @@ public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugI
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v2beta1/2.0.0/pom.xml b/clients/google-api-services-dialogflow/v2beta1/2.0.0/pom.xml
index f3757fdb1ab..b3e389e16db 100644
--- a/clients/google-api-services-dialogflow/v2beta1/2.0.0/pom.xml
+++ b/clients/google-api-services-dialogflow/v2beta1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-dialogflow</artifactId>
-  <version>v2beta1-rev20260716-2.0.0</version>
-  <name>Dialogflow API v2beta1-rev20260716-2.0.0</name>
+  <version>v2beta1-rev20260808-2.0.0</version>
+  <name>Dialogflow API v2beta1-rev20260808-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-dialogflow/v2beta1/README.md b/clients/google-api-services-dialogflow/v2beta1/README.md
index c82bfaeb775..266f4914710 100644
--- a/clients/google-api-services-dialogflow/v2beta1/README.md
+++ b/clients/google-api-services-dialogflow/v2beta1/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v2beta1-rev20260716-2.0.0</version>
+      <version>v2beta1-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v2beta1-rev20260716-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v2beta1-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/README.md b/clients/google-api-services-dialogflow/v3/2.0.0/README.md
index 0d404049840..e7aea59d092 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/README.md
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v3-rev20260701-2.0.0</version>
+      <version>v3-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v3-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v3-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3Fulfillment.java b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3Fulfillment.java
index 98569042e07..cd675d10746 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3Fulfillment extends com.google.api.c
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3Fulfillment setAdvancedSettings(GoogleCloudDialo
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
index 6120b0a5bb9..a1c90280526 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3beta1Fulfillment extends com.google.
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3beta1AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3beta1Fulfillment setAdvancedSettings(GoogleCloud
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3beta1Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index bed805904c8..6f3a365c168 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -41,6 +41,30 @@ public final class GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGeneratio
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -77,6 +101,66 @@ public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo s
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index ed5c632b38a..9ae166eebb4 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/com/google/api/services/dialogflow/v3/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -42,6 +42,30 @@ public final class GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGene
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -78,6 +102,66 @@ public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugI
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3/2.0.0/pom.xml b/clients/google-api-services-dialogflow/v3/2.0.0/pom.xml
index 41241c361c8..674ce6808aa 100644
--- a/clients/google-api-services-dialogflow/v3/2.0.0/pom.xml
+++ b/clients/google-api-services-dialogflow/v3/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-dialogflow</artifactId>
-  <version>v3-rev20260701-2.0.0</version>
-  <name>Dialogflow API v3-rev20260701-2.0.0</name>
+  <version>v3-rev20260808-2.0.0</version>
+  <name>Dialogflow API v3-rev20260808-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-dialogflow/v3/README.md b/clients/google-api-services-dialogflow/v3/README.md
index 0d404049840..e7aea59d092 100644
--- a/clients/google-api-services-dialogflow/v3/README.md
+++ b/clients/google-api-services-dialogflow/v3/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v3-rev20260701-2.0.0</version>
+      <version>v3-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v3-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v3-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/README.md b/clients/google-api-services-dialogflow/v3beta1/2.0.0/README.md
index 98536951996..76098862a2d 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/README.md
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v3beta1-rev20260701-2.0.0</version>
+      <version>v3beta1-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v3beta1-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v3beta1-rev20260808-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
index c5d9365f848..a5250ea2324 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3Fulfillment extends com.google.api.c
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3Fulfillment setAdvancedSettings(GoogleCloudDialo
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
index 0d78e6f464e..f3c209345d2 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowCxV3beta1Fulfillment.java
@@ -35,6 +35,12 @@ public final class GoogleCloudDialogflowCxV3beta1Fulfillment extends com.google.
   @com.google.api.client.util.Key
   private GoogleCloudDialogflowCxV3beta1AdvancedSettings advancedSettings;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String codeBlockFunction;
+
   /**
    * The value may be {@code null}.
    */
@@ -98,6 +104,21 @@ public GoogleCloudDialogflowCxV3beta1Fulfillment setAdvancedSettings(GoogleCloud
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCodeBlockFunction() {
+    return codeBlockFunction;
+  }
+
+  /**
+   * @param codeBlockFunction codeBlockFunction or {@code null} for none
+   */
+  public GoogleCloudDialogflowCxV3beta1Fulfillment setCodeBlockFunction(java.lang.String codeBlockFunction) {
+    this.codeBlockFunction = codeBlockFunction;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index 80753abbec5..2e5875eb75d 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -41,6 +41,30 @@ public final class GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGeneratio
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -77,6 +101,66 @@ public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo s
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
index bb5ecbe6a13..8f7708ecc31 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/com/google/api/services/dialogflow/v3beta1/model/GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo.java
@@ -42,6 +42,30 @@ public final class GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGene
   @com.google.api.client.util.Key
   private java.lang.Integer promptTokenCount;
 
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQuery;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Float similarityToLastQueryThreshold;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Integer thinkingBudgetTokens;
+
+  /**
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String thinkingLevel;
+
   /**
    * The value may be {@code null}.
    */
@@ -78,6 +102,66 @@ public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugI
     return this;
   }
 
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQuery() {
+    return similarityToLastQuery;
+  }
+
+  /**
+   * @param similarityToLastQuery similarityToLastQuery or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQuery(java.lang.Float similarityToLastQuery) {
+    this.similarityToLastQuery = similarityToLastQuery;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Float getSimilarityToLastQueryThreshold() {
+    return similarityToLastQueryThreshold;
+  }
+
+  /**
+   * @param similarityToLastQueryThreshold similarityToLastQueryThreshold or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setSimilarityToLastQueryThreshold(java.lang.Float similarityToLastQueryThreshold) {
+    this.similarityToLastQueryThreshold = similarityToLastQueryThreshold;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.Integer getThinkingBudgetTokens() {
+    return thinkingBudgetTokens;
+  }
+
+  /**
+   * @param thinkingBudgetTokens thinkingBudgetTokens or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingBudgetTokens(java.lang.Integer thinkingBudgetTokens) {
+    this.thinkingBudgetTokens = thinkingBudgetTokens;
+    return this;
+  }
+
+  /**
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getThinkingLevel() {
+    return thinkingLevel;
+  }
+
+  /**
+   * @param thinkingLevel thinkingLevel or {@code null} for none
+   */
+  public GoogleCloudDialogflowV2beta1KnowledgeAssistDebugInfoQueryGenerationDebugInfo setThinkingLevel(java.lang.String thinkingLevel) {
+    this.thinkingLevel = thinkingLevel;
+    return this;
+  }
+
   /**
    * @return value or {@code null} for none
    */
diff --git a/clients/google-api-services-dialogflow/v3beta1/2.0.0/pom.xml b/clients/google-api-services-dialogflow/v3beta1/2.0.0/pom.xml
index 42008ef53a4..1a92ecb51e2 100644
--- a/clients/google-api-services-dialogflow/v3beta1/2.0.0/pom.xml
+++ b/clients/google-api-services-dialogflow/v3beta1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-dialogflow</artifactId>
-  <version>v3beta1-rev20260701-2.0.0</version>
-  <name>Dialogflow API v3beta1-rev20260701-2.0.0</name>
+  <version>v3beta1-rev20260808-2.0.0</version>
+  <name>Dialogflow API v3beta1-rev20260808-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-dialogflow/v3beta1/README.md b/clients/google-api-services-dialogflow/v3beta1/README.md
index 98536951996..76098862a2d 100644
--- a/clients/google-api-services-dialogflow/v3beta1/README.md
+++ b/clients/google-api-services-dialogflow/v3beta1/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-dialogflow</artifactId>
-      <version>v3beta1-rev20260701-2.0.0</version>
+      <version>v3beta1-rev20260808-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-dialogflow:v3beta1-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-dialogflow:v3beta1-rev20260808-2.0.0'
 }
 ```