diff --git a/clients/google-api-services-spanner/v1/2.0.0/README.md b/clients/google-api-services-spanner/v1/2.0.0/README.md
index ff9029c9271..43e67cf8fa1 100644
--- a/clients/google-api-services-spanner/v1/2.0.0/README.md
+++ b/clients/google-api-services-spanner/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-spanner</artifactId>
-      <version>v1-rev20260501-2.0.0</version>
+      <version>v1-rev20260622-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-spanner:v1-rev20260501-2.0.0'
+  implementation 'com.google.apis:google-api-services-spanner:v1-rev20260622-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/CommitResponse.java b/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/CommitResponse.java
index 510eb3ef86c..78282a86f66 100644
--- a/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/CommitResponse.java
+++ b/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/CommitResponse.java
@@ -44,6 +44,13 @@ public final class CommitResponse extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private String commitTimestamp;
 
+  /**
+   * The isolation level used for the read-write transaction.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String isolationLevel;
+
   /**
    * If specified, transaction has not committed yet. You must retry the commit with the new
    * precommit token.
@@ -52,6 +59,13 @@ public final class CommitResponse extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private MultiplexedSessionPrecommitToken precommitToken;
 
+  /**
+   * The read lock mode used for the read-write transaction.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String readLockMode;
+
   /**
    * If `TransactionOptions.isolation_level` is set to `IsolationLevel.REPEATABLE_READ`, then the
    * snapshot timestamp is the timestamp at which all reads in the transaction ran. This timestamp
@@ -97,6 +111,23 @@ public CommitResponse setCommitTimestamp(String commitTimestamp) {
     return this;
   }
 
+  /**
+   * The isolation level used for the read-write transaction.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getIsolationLevel() {
+    return isolationLevel;
+  }
+
+  /**
+   * The isolation level used for the read-write transaction.
+   * @param isolationLevel isolationLevel or {@code null} for none
+   */
+  public CommitResponse setIsolationLevel(java.lang.String isolationLevel) {
+    this.isolationLevel = isolationLevel;
+    return this;
+  }
+
   /**
    * If specified, transaction has not committed yet. You must retry the commit with the new
    * precommit token.
@@ -116,6 +147,23 @@ public CommitResponse setPrecommitToken(MultiplexedSessionPrecommitToken precomm
     return this;
   }
 
+  /**
+   * The read lock mode used for the read-write transaction.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getReadLockMode() {
+    return readLockMode;
+  }
+
+  /**
+   * The read lock mode used for the read-write transaction.
+   * @param readLockMode readLockMode or {@code null} for none
+   */
+  public CommitResponse setReadLockMode(java.lang.String readLockMode) {
+    this.readLockMode = readLockMode;
+    return this;
+  }
+
   /**
    * If `TransactionOptions.isolation_level` is set to `IsolationLevel.REPEATABLE_READ`, then the
    * snapshot timestamp is the timestamp at which all reads in the transaction ran. This timestamp
diff --git a/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/InstancePartition.java b/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/InstancePartition.java
index 22d8f8dca41..badc098276a 100644
--- a/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/InstancePartition.java
+++ b/clients/google-api-services-spanner/v1/2.0.0/com/google/api/services/spanner/v1/model/InstancePartition.java
@@ -87,8 +87,10 @@ public final class InstancePartition extends com.google.api.client.json.GenericJ
 
   /**
    * The number of nodes allocated to this instance partition. Users can set the `node_count` field
-   * to specify the target number of nodes allocated to the instance partition. This may be zero in
-   * API responses for instance partitions that are not yet in state `READY`.
+   * to specify the target number of nodes allocated to the instance partition. If autoscaling is
+   * enabled, node_count is treated as an OUTPUT_ONLY field and reflects the current number of nodes
+   * allocated to the instance partition. This may be zero in API responses for instance partitions
+   * that are not yet in state `READY`.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -97,8 +99,10 @@ public final class InstancePartition extends com.google.api.client.json.GenericJ
   /**
    * The number of processing units allocated to this instance partition. Users can set the
    * `processing_units` field to specify the target number of processing units allocated to the
-   * instance partition. This might be zero in API responses for instance partitions that are not
-   * yet in the `READY` state.
+   * instance partition. If autoscaling is enabled, processing_units is treated as an OUTPUT_ONLY
+   * field and reflects the current number of processing units allocated to the instance partition.
+   * This might be zero in API responses for instance partitions that are not yet in the `READY`
+   * state.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -268,8 +272,10 @@ public InstancePartition setName(java.lang.String name) {
 
   /**
    * The number of nodes allocated to this instance partition. Users can set the `node_count` field
-   * to specify the target number of nodes allocated to the instance partition. This may be zero in
-   * API responses for instance partitions that are not yet in state `READY`.
+   * to specify the target number of nodes allocated to the instance partition. If autoscaling is
+   * enabled, node_count is treated as an OUTPUT_ONLY field and reflects the current number of nodes
+   * allocated to the instance partition. This may be zero in API responses for instance partitions
+   * that are not yet in state `READY`.
    * @return value or {@code null} for none
    */
   public java.lang.Integer getNodeCount() {
@@ -278,8 +284,10 @@ public java.lang.Integer getNodeCount() {
 
   /**
    * The number of nodes allocated to this instance partition. Users can set the `node_count` field
-   * to specify the target number of nodes allocated to the instance partition. This may be zero in
-   * API responses for instance partitions that are not yet in state `READY`.
+   * to specify the target number of nodes allocated to the instance partition. If autoscaling is
+   * enabled, node_count is treated as an OUTPUT_ONLY field and reflects the current number of nodes
+   * allocated to the instance partition. This may be zero in API responses for instance partitions
+   * that are not yet in state `READY`.
    * @param nodeCount nodeCount or {@code null} for none
    */
   public InstancePartition setNodeCount(java.lang.Integer nodeCount) {
@@ -290,8 +298,10 @@ public InstancePartition setNodeCount(java.lang.Integer nodeCount) {
   /**
    * The number of processing units allocated to this instance partition. Users can set the
    * `processing_units` field to specify the target number of processing units allocated to the
-   * instance partition. This might be zero in API responses for instance partitions that are not
-   * yet in the `READY` state.
+   * instance partition. If autoscaling is enabled, processing_units is treated as an OUTPUT_ONLY
+   * field and reflects the current number of processing units allocated to the instance partition.
+   * This might be zero in API responses for instance partitions that are not yet in the `READY`
+   * state.
    * @return value or {@code null} for none
    */
   public java.lang.Integer getProcessingUnits() {
@@ -301,8 +311,10 @@ public java.lang.Integer getProcessingUnits() {
   /**
    * The number of processing units allocated to this instance partition. Users can set the
    * `processing_units` field to specify the target number of processing units allocated to the
-   * instance partition. This might be zero in API responses for instance partitions that are not
-   * yet in the `READY` state.
+   * instance partition. If autoscaling is enabled, processing_units is treated as an OUTPUT_ONLY
+   * field and reflects the current number of processing units allocated to the instance partition.
+   * This might be zero in API responses for instance partitions that are not yet in the `READY`
+   * state.
    * @param processingUnits processingUnits or {@code null} for none
    */
   public InstancePartition setProcessingUnits(java.lang.Integer processingUnits) {
diff --git a/clients/google-api-services-spanner/v1/2.0.0/pom.xml b/clients/google-api-services-spanner/v1/2.0.0/pom.xml
index 808633b4904..d7821972a11 100644
--- a/clients/google-api-services-spanner/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-spanner/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-spanner</artifactId>
-  <version>v1-rev20260501-2.0.0</version>
-  <name>Cloud Spanner API v1-rev20260501-2.0.0</name>
+  <version>v1-rev20260622-2.0.0</version>
+  <name>Cloud Spanner API v1-rev20260622-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-spanner/v1/README.md b/clients/google-api-services-spanner/v1/README.md
index ff9029c9271..43e67cf8fa1 100644
--- a/clients/google-api-services-spanner/v1/README.md
+++ b/clients/google-api-services-spanner/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-spanner</artifactId>
-      <version>v1-rev20260501-2.0.0</version>
+      <version>v1-rev20260622-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-spanner:v1-rev20260501-2.0.0'
+  implementation 'com.google.apis:google-api-services-spanner:v1-rev20260622-2.0.0'
 }
 ```