diff --git a/clients/google-api-services-gmail/v1/2.0.0/README.md b/clients/google-api-services-gmail/v1/2.0.0/README.md
index 99515992c32..f9ee28f591d 100644
--- a/clients/google-api-services-gmail/v1/2.0.0/README.md
+++ b/clients/google-api-services-gmail/v1/2.0.0/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-gmail</artifactId>
-      <version>v1-rev20260727-2.0.0</version>
+      <version>v1-rev20261005-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-gmail:v1-rev20260727-2.0.0'
+  implementation 'com.google.apis:google-api-services-gmail:v1-rev20261005-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/CsePrivateKeyMetadata.java b/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/CsePrivateKeyMetadata.java
index 8eaac89420a..0e0987485c2 100644
--- a/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/CsePrivateKeyMetadata.java
+++ b/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/CsePrivateKeyMetadata.java
@@ -37,7 +37,8 @@ public final class CsePrivateKeyMetadata extends com.google.api.client.json.Gene
   private HardwareKeyMetadata hardwareKeyMetadata;
 
   /**
-   * Metadata for a private key instance managed by an external key access control list service.
+   * Metadata for a private key instance managed by an external key access control list service. The
+   * maximum size of the KACLS data field is 8 KiB.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -68,7 +69,8 @@ public CsePrivateKeyMetadata setHardwareKeyMetadata(HardwareKeyMetadata hardware
   }
 
   /**
-   * Metadata for a private key instance managed by an external key access control list service.
+   * Metadata for a private key instance managed by an external key access control list service. The
+   * maximum size of the KACLS data field is 8 KiB.
    * @return value or {@code null} for none
    */
   public KaclsKeyMetadata getKaclsKeyMetadata() {
@@ -76,7 +78,8 @@ public KaclsKeyMetadata getKaclsKeyMetadata() {
   }
 
   /**
-   * Metadata for a private key instance managed by an external key access control list service.
+   * Metadata for a private key instance managed by an external key access control list service. The
+   * maximum size of the KACLS data field is 8 KiB.
    * @param kaclsKeyMetadata kaclsKeyMetadata or {@code null} for none
    */
   public CsePrivateKeyMetadata setKaclsKeyMetadata(KaclsKeyMetadata kaclsKeyMetadata) {
diff --git a/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/KaclsKeyMetadata.java b/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/KaclsKeyMetadata.java
index e8c22e1f307..ade7fa9c9c8 100644
--- a/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/KaclsKeyMetadata.java
+++ b/clients/google-api-services-gmail/v1/2.0.0/com/google/api/services/gmail/model/KaclsKeyMetadata.java
@@ -17,8 +17,8 @@
 package com.google.api.services.gmail.model;
 
 /**
- * Metadata for private keys managed by an external key access control list service. For details
- * about managing key access, see [Google Workspace CSE API
+ * Metadata for a cryptographic key managed by an external key access control list service. For
+ * details about managing key access, see [Google Workspace CSE API
  * Reference](https://developers.google.com/workspace/cse/reference).
  *
  * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
@@ -32,21 +32,21 @@
 public final class KaclsKeyMetadata extends com.google.api.client.json.GenericJson {
 
   /**
-   * Opaque data generated and used by the key access control list service. Maximum size: 8 KiB.
+   * Opaque data generated and used by the key access control list service.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
   private java.lang.String kaclsData;
 
   /**
-   * The URI of the key access control list service that manages the private key.
+   * The URI of the key access control list service that manages the key.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
   private java.lang.String kaclsUri;
 
   /**
-   * Opaque data generated and used by the key access control list service. Maximum size: 8 KiB.
+   * Opaque data generated and used by the key access control list service.
    * @return value or {@code null} for none
    */
   public java.lang.String getKaclsData() {
@@ -54,7 +54,7 @@ public java.lang.String getKaclsData() {
   }
 
   /**
-   * Opaque data generated and used by the key access control list service. Maximum size: 8 KiB.
+   * Opaque data generated and used by the key access control list service.
    * @param kaclsData kaclsData or {@code null} for none
    */
   public KaclsKeyMetadata setKaclsData(java.lang.String kaclsData) {
@@ -63,7 +63,7 @@ public KaclsKeyMetadata setKaclsData(java.lang.String kaclsData) {
   }
 
   /**
-   * The URI of the key access control list service that manages the private key.
+   * The URI of the key access control list service that manages the key.
    * @return value or {@code null} for none
    */
   public java.lang.String getKaclsUri() {
@@ -71,7 +71,7 @@ public java.lang.String getKaclsUri() {
   }
 
   /**
-   * The URI of the key access control list service that manages the private key.
+   * The URI of the key access control list service that manages the key.
    * @param kaclsUri kaclsUri or {@code null} for none
    */
   public KaclsKeyMetadata setKaclsUri(java.lang.String kaclsUri) {
diff --git a/clients/google-api-services-gmail/v1/2.0.0/pom.xml b/clients/google-api-services-gmail/v1/2.0.0/pom.xml
index 429e6dd0681..1498ee2d3a7 100644
--- a/clients/google-api-services-gmail/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-gmail/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-gmail</artifactId>
-  <version>v1-rev20260727-2.0.0</version>
-  <name>Gmail API v1-rev20260727-2.0.0</name>
+  <version>v1-rev20261005-2.0.0</version>
+  <name>Gmail API v1-rev20261005-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-gmail/v1/README.md b/clients/google-api-services-gmail/v1/README.md
index 99515992c32..f9ee28f591d 100644
--- a/clients/google-api-services-gmail/v1/README.md
+++ b/clients/google-api-services-gmail/v1/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-gmail</artifactId>
-      <version>v1-rev20260727-2.0.0</version>
+      <version>v1-rev20261005-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-gmail:v1-rev20260727-2.0.0'
+  implementation 'com.google.apis:google-api-services-gmail:v1-rev20261005-2.0.0'
 }
 ```