diff --git a/clients/google-api-services-sheets/v4/2.0.0/README.md b/clients/google-api-services-sheets/v4/2.0.0/README.md
index ae9c94f510b..94c96feec10 100644
--- a/clients/google-api-services-sheets/v4/2.0.0/README.md
+++ b/clients/google-api-services-sheets/v4/2.0.0/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-sheets</artifactId>
-      <version>v4-rev20260930-2.0.0</version>
+      <version>v4-rev20261019-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-sheets:v4-rev20260930-2.0.0'
+  implementation 'com.google.apis:google-api-services-sheets:v4-rev20261019-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-sheets/v4/2.0.0/com/google/api/services/sheets/v4/model/BasicChartSpec.java b/clients/google-api-services-sheets/v4/2.0.0/com/google/api/services/sheets/v4/model/BasicChartSpec.java
index 819d4aa39ec..ee0abbcd055 100644
--- a/clients/google-api-services-sheets/v4/2.0.0/com/google/api/services/sheets/v4/model/BasicChartSpec.java
+++ b/clients/google-api-services-sheets/v4/2.0.0/com/google/api/services/sheets/v4/model/BasicChartSpec.java
@@ -124,7 +124,8 @@ public final class BasicChartSpec extends com.google.api.client.json.GenericJson
   private java.lang.String stackedType;
 
   /**
-   * True to make the chart 3D. Applies to Bar and Column charts.
+   * True to make the chart 3D. Applies to Bar and Column charts. Setting it on a Combo chart is
+   * allowed but has no effect; setting it on any other chart type returns an error.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -328,7 +329,8 @@ public BasicChartSpec setStackedType(java.lang.String stackedType) {
   }
 
   /**
-   * True to make the chart 3D. Applies to Bar and Column charts.
+   * True to make the chart 3D. Applies to Bar and Column charts. Setting it on a Combo chart is
+   * allowed but has no effect; setting it on any other chart type returns an error.
    * @return value or {@code null} for none
    */
   public java.lang.Boolean getThreeDimensional() {
@@ -336,7 +338,8 @@ public java.lang.Boolean getThreeDimensional() {
   }
 
   /**
-   * True to make the chart 3D. Applies to Bar and Column charts.
+   * True to make the chart 3D. Applies to Bar and Column charts. Setting it on a Combo chart is
+   * allowed but has no effect; setting it on any other chart type returns an error.
    * @param threeDimensional threeDimensional or {@code null} for none
    */
   public BasicChartSpec setThreeDimensional(java.lang.Boolean threeDimensional) {
diff --git a/clients/google-api-services-sheets/v4/2.0.0/pom.xml b/clients/google-api-services-sheets/v4/2.0.0/pom.xml
index 566d7fc036f..85b5165cc40 100644
--- a/clients/google-api-services-sheets/v4/2.0.0/pom.xml
+++ b/clients/google-api-services-sheets/v4/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-sheets</artifactId>
-  <version>v4-rev20260930-2.0.0</version>
-  <name>Google Sheets API v4-rev20260930-2.0.0</name>
+  <version>v4-rev20261019-2.0.0</version>
+  <name>Google Sheets API v4-rev20261019-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-sheets/v4/README.md b/clients/google-api-services-sheets/v4/README.md
index ae9c94f510b..94c96feec10 100644
--- a/clients/google-api-services-sheets/v4/README.md
+++ b/clients/google-api-services-sheets/v4/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-sheets</artifactId>
-      <version>v4-rev20260930-2.0.0</version>
+      <version>v4-rev20261019-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-sheets:v4-rev20260930-2.0.0'
+  implementation 'com.google.apis:google-api-services-sheets:v4-rev20261019-2.0.0'
 }
 ```