diff --git a/clients/google-api-services-iap/v1/2.0.0/README.md b/clients/google-api-services-iap/v1/2.0.0/README.md
index 47cfb5c5c30..12e04a1153e 100644
--- a/clients/google-api-services-iap/v1/2.0.0/README.md
+++ b/clients/google-api-services-iap/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-iap</artifactId>
-      <version>v1-rev20251013-2.0.0</version>
+      <version>v1-rev20260209-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-iap:v1-rev20251013-2.0.0'
+  implementation 'com.google.apis:google-api-services-iap:v1-rev20260209-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/CloudIAP.java b/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/CloudIAP.java
index 8d61464b395..336e62b8b56 100644
--- a/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/CloudIAP.java
+++ b/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/CloudIAP.java
@@ -103,7 +103,7 @@ public class CloudIAP extends com.google.api.client.googleapis.services.json.Abs
    *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
    *        <li>Android: {@code newCompatibleTransport} from
    *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-   *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
+   *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
    *        </li>
    *        </ul>
    * @param jsonFactory JSON factory, which may be:
@@ -3266,8 +3266,7 @@ private static String chooseEndpoint(com.google.api.client.http.HttpTransport tr
      *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
      *        <li>Android: {@code newCompatibleTransport} from
      *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-     *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
-     *        </li>
+     *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
      *        </ul>
      * @param jsonFactory JSON factory, which may be:
      *        <ul>
diff --git a/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/model/OAuthSettings.java b/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/model/OAuthSettings.java
index 04cd286dac1..3023ee66827 100644
--- a/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/model/OAuthSettings.java
+++ b/clients/google-api-services-iap/v1/2.0.0/com/google/api/services/iap/v1/model/OAuthSettings.java
@@ -30,6 +30,32 @@
 @SuppressWarnings("javadoc")
 public final class OAuthSettings extends com.google.api.client.json.GenericJson {
 
+  /**
+   * Optional. OAuth 2.0 client ID used in the OAuth flow to generate an access token. If this field
+   * is set, you can skip obtaining the OAuth credentials in this step:
+   * https://developers.google.com/identity/protocols/OAuth2?hl=en_US#1.-obtain-
+   * oauth-2.0-credentials-from-the-google-api-console. However, this could allow for client
+   * sharing. The risks of client sharing are outlined here:
+   * https://cloud.google.com/iap/docs/sharing-oauth-clients#risks.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String clientId;
+
+  /**
+   * Optional. Input only. OAuth secret paired with client ID
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String clientSecret;
+
+  /**
+   * Output only. OAuth secret sha256 paired with client ID
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String clientSecretSha256;
+
   /**
    * Domain hint to send as hd=? parameter in OAuth request flow. Enables redirect to primary IDP by
    * skipping Google's login screen.
@@ -48,6 +74,67 @@ public final class OAuthSettings extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private java.util.List<java.lang.String> programmaticClients;
 
+  /**
+   * Optional. OAuth 2.0 client ID used in the OAuth flow to generate an access token. If this field
+   * is set, you can skip obtaining the OAuth credentials in this step:
+   * https://developers.google.com/identity/protocols/OAuth2?hl=en_US#1.-obtain-
+   * oauth-2.0-credentials-from-the-google-api-console. However, this could allow for client
+   * sharing. The risks of client sharing are outlined here:
+   * https://cloud.google.com/iap/docs/sharing-oauth-clients#risks.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getClientId() {
+    return clientId;
+  }
+
+  /**
+   * Optional. OAuth 2.0 client ID used in the OAuth flow to generate an access token. If this field
+   * is set, you can skip obtaining the OAuth credentials in this step:
+   * https://developers.google.com/identity/protocols/OAuth2?hl=en_US#1.-obtain-
+   * oauth-2.0-credentials-from-the-google-api-console. However, this could allow for client
+   * sharing. The risks of client sharing are outlined here:
+   * https://cloud.google.com/iap/docs/sharing-oauth-clients#risks.
+   * @param clientId clientId or {@code null} for none
+   */
+  public OAuthSettings setClientId(java.lang.String clientId) {
+    this.clientId = clientId;
+    return this;
+  }
+
+  /**
+   * Optional. Input only. OAuth secret paired with client ID
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getClientSecret() {
+    return clientSecret;
+  }
+
+  /**
+   * Optional. Input only. OAuth secret paired with client ID
+   * @param clientSecret clientSecret or {@code null} for none
+   */
+  public OAuthSettings setClientSecret(java.lang.String clientSecret) {
+    this.clientSecret = clientSecret;
+    return this;
+  }
+
+  /**
+   * Output only. OAuth secret sha256 paired with client ID
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getClientSecretSha256() {
+    return clientSecretSha256;
+  }
+
+  /**
+   * Output only. OAuth secret sha256 paired with client ID
+   * @param clientSecretSha256 clientSecretSha256 or {@code null} for none
+   */
+  public OAuthSettings setClientSecretSha256(java.lang.String clientSecretSha256) {
+    this.clientSecretSha256 = clientSecretSha256;
+    return this;
+  }
+
   /**
    * Domain hint to send as hd=? parameter in OAuth request flow. Enables redirect to primary IDP by
    * skipping Google's login screen.
diff --git a/clients/google-api-services-iap/v1/2.0.0/pom.xml b/clients/google-api-services-iap/v1/2.0.0/pom.xml
index fd6f8b17436..7417a6f0f0f 100644
--- a/clients/google-api-services-iap/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-iap/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-iap</artifactId>
-  <version>v1-rev20251013-2.0.0</version>
-  <name>Cloud Identity-Aware Proxy API v1-rev20251013-2.0.0</name>
+  <version>v1-rev20260209-2.0.0</version>
+  <name>Cloud Identity-Aware Proxy API v1-rev20260209-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-iap/v1/README.md b/clients/google-api-services-iap/v1/README.md
index 47cfb5c5c30..12e04a1153e 100644
--- a/clients/google-api-services-iap/v1/README.md
+++ b/clients/google-api-services-iap/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-iap</artifactId>
-      <version>v1-rev20251013-2.0.0</version>
+      <version>v1-rev20260209-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-iap:v1-rev20251013-2.0.0'
+  implementation 'com.google.apis:google-api-services-iap:v1-rev20260209-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-iap/v1beta1/2.0.0/com/google/api/services/iap/v1beta1/CloudIAP.java b/clients/google-api-services-iap/v1beta1/2.0.0/com/google/api/services/iap/v1beta1/CloudIAP.java
index 942cf577c6a..11230b59cf9 100644
--- a/clients/google-api-services-iap/v1beta1/2.0.0/com/google/api/services/iap/v1beta1/CloudIAP.java
+++ b/clients/google-api-services-iap/v1beta1/2.0.0/com/google/api/services/iap/v1beta1/CloudIAP.java
@@ -103,7 +103,7 @@ public class CloudIAP extends com.google.api.client.googleapis.services.json.Abs
    *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
    *        <li>Android: {@code newCompatibleTransport} from
    *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-   *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
+   *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
    *        </li>
    *        </ul>
    * @param jsonFactory JSON factory, which may be:
@@ -639,8 +639,7 @@ private static String chooseEndpoint(com.google.api.client.http.HttpTransport tr
      *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
      *        <li>Android: {@code newCompatibleTransport} from
      *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-     *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
-     *        </li>
+     *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
      *        </ul>
      * @param jsonFactory JSON factory, which may be:
      *        <ul>