diff --git a/pom.xml b/pom.xml
index 786a7656..0383e942 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
         <sonar.organization>axoniq</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
 
-        <axonserver.api.version>2025.2.0</axonserver.api.version>
+        <axonserver.api.version>2026.0.0-SNAPSHOT</axonserver.api.version>
 
         <grpc.version>1.76.0</grpc.version>
         <protobuf.version>4.34.0</protobuf.version>
diff --git a/src/main/java/io/axoniq/axonserver/connector/event/AppendEventsTransaction.java b/src/main/java/io/axoniq/axonserver/connector/event/AppendEventsTransaction.java
index 67349930..b777cdd6 100644
--- a/src/main/java/io/axoniq/axonserver/connector/event/AppendEventsTransaction.java
+++ b/src/main/java/io/axoniq/axonserver/connector/event/AppendEventsTransaction.java
@@ -16,7 +16,7 @@
 
 package io.axoniq.axonserver.connector.event;
 
-import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 
 import java.util.concurrent.CompletableFuture;
@@ -39,7 +39,7 @@ public interface AppendEventsTransaction {
      *
      * @return a CompletableFuture resolving the confirmation of the successful processing of the transaction
      */
-    CompletableFuture<Confirmation> commit();
+    CompletableFuture<ConfirmationWithConsistencyMarker> commit();
 
     /**
      * Rolls back the transaction.
diff --git a/src/main/java/io/axoniq/axonserver/connector/event/EventChannel.java b/src/main/java/io/axoniq/axonserver/connector/event/EventChannel.java
index 03183cf3..21f591ea 100644
--- a/src/main/java/io/axoniq/axonserver/connector/event/EventChannel.java
+++ b/src/main/java/io/axoniq/axonserver/connector/event/EventChannel.java
@@ -19,9 +19,9 @@
 import io.axoniq.axonserver.connector.ResultStream;
 import io.axoniq.axonserver.grpc.InstructionAck;
 import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 import io.axoniq.axonserver.grpc.streams.CreateResult;
-import io.axoniq.axonserver.grpc.streams.CreateStreamResponse;
 import io.axoniq.axonserver.grpc.streams.StreamStatus;
 
 import java.time.Duration;
@@ -105,7 +105,7 @@ default CompletableFuture<String> reschedule(String scheduleToken, Duration trig
      * @return a {@link CompletableFuture} resolving the confirmation of the successful processing of the append
      * transaction
      */
-    default CompletableFuture<Confirmation> appendEvents(Event... events) {
+    default CompletableFuture<ConfirmationWithConsistencyMarker> appendEvents(Event... events) {
         AppendEventsTransaction tx = startAppendEventsTransaction();
         for (Event event : events) {
             tx.appendEvent(event);
diff --git a/src/main/java/io/axoniq/axonserver/connector/event/impl/AppendEventsTransactionImpl.java b/src/main/java/io/axoniq/axonserver/connector/event/impl/AppendEventsTransactionImpl.java
index 879e816f..416ec3de 100644
--- a/src/main/java/io/axoniq/axonserver/connector/event/impl/AppendEventsTransactionImpl.java
+++ b/src/main/java/io/axoniq/axonserver/connector/event/impl/AppendEventsTransactionImpl.java
@@ -17,7 +17,7 @@
 package io.axoniq.axonserver.connector.event.impl;
 
 import io.axoniq.axonserver.connector.event.AppendEventsTransaction;
-import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 import io.grpc.Status;
 import io.grpc.StatusRuntimeException;
@@ -31,16 +31,16 @@
 public class AppendEventsTransactionImpl implements AppendEventsTransaction {
 
     private final StreamObserver<Event> stream;
-    private final CompletableFuture<Confirmation> result;
+    private final CompletableFuture<ConfirmationWithConsistencyMarker> result;
 
     /**
      * Constructs a {@link AppendEventsTransactionImpl} used to append events to the Event Store.
      *
      * @param stream the {@link StreamObserver} of {@link Event} instances which should be appended
-     * @param result a {@link CompletableFuture} resolving the {@link Confirmation} of the successful processing of this
+     * @param result a {@link CompletableFuture} resolving the {@link ConfirmationWithConsistencyMarker} of the successful processing of this
      *               transaction
      */
-    public AppendEventsTransactionImpl(StreamObserver<Event> stream, CompletableFuture<Confirmation> result) {
+    public AppendEventsTransactionImpl(StreamObserver<Event> stream, CompletableFuture<ConfirmationWithConsistencyMarker> result) {
         this.stream = stream;
         this.result = result;
     }
@@ -52,7 +52,7 @@ public AppendEventsTransaction appendEvent(Event event) {
     }
 
     @Override
-    public CompletableFuture<Confirmation> commit() {
+    public CompletableFuture<ConfirmationWithConsistencyMarker> commit() {
         stream.onCompleted();
         return result;
     }
diff --git a/src/main/java/io/axoniq/axonserver/connector/event/impl/EventChannelImpl.java b/src/main/java/io/axoniq/axonserver/connector/event/impl/EventChannelImpl.java
index 1f24f2d9..e022fc27 100644
--- a/src/main/java/io/axoniq/axonserver/connector/event/impl/EventChannelImpl.java
+++ b/src/main/java/io/axoniq/axonserver/connector/event/impl/EventChannelImpl.java
@@ -39,6 +39,7 @@
 import io.axoniq.axonserver.grpc.control.ClientIdentification;
 import io.axoniq.axonserver.grpc.event.CancelScheduledEventRequest;
 import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 import io.axoniq.axonserver.grpc.event.EventSchedulerGrpc;
 import io.axoniq.axonserver.grpc.event.EventStoreGrpc;
@@ -152,7 +153,7 @@ public boolean isReady() {
 
     @Override
     public AppendEventsTransaction startAppendEventsTransaction() {
-        FutureStreamObserver<Confirmation> result = new FutureStreamObserver<>(null);
+        FutureStreamObserver<ConfirmationWithConsistencyMarker> result = new FutureStreamObserver<>(null);
         StreamObserver<Event> clientStream = eventStore.appendEvent(result);
         return new AppendEventsTransactionImpl(clientStream, result);
     }
diff --git a/src/test/java/io/axoniq/axonserver/connector/event/EventHandlingIntegrationTest.java b/src/test/java/io/axoniq/axonserver/connector/event/EventHandlingIntegrationTest.java
index 1a49e533..036e265a 100644
--- a/src/test/java/io/axoniq/axonserver/connector/event/EventHandlingIntegrationTest.java
+++ b/src/test/java/io/axoniq/axonserver/connector/event/EventHandlingIntegrationTest.java
@@ -22,7 +22,7 @@
 import io.axoniq.axonserver.connector.ResultStream;
 import io.axoniq.axonserver.connector.impl.StreamClosedException;
 import io.axoniq.axonserver.grpc.InstructionAck;
-import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 import io.axoniq.axonserver.grpc.event.EventWithToken;
 import org.junit.jupiter.api.AfterEach;
@@ -103,11 +103,11 @@ void testCallbackNotifiedOfAvailableEvent() throws Exception {
 
             CountDownLatch dataAvailable = new CountDownLatch(1);
 
-            CompletableFuture<Confirmation> result = publishingEventChannel
+            CompletableFuture<ConfirmationWithConsistencyMarker> result = publishingEventChannel
                     .startAppendEventsTransaction()
                     .appendEvent(createEvent("Hello world"))
                     .commit();
-            Confirmation confirmation = result.get(1, SECONDS);
+            ConfirmationWithConsistencyMarker confirmation = result.get(1, SECONDS);
 
             assertTrue(confirmation.getSuccess());
 
diff --git a/src/test/java/io/axoniq/axonserver/connector/impl/AxonServerManagedChannelIntegrationTest.java b/src/test/java/io/axoniq/axonserver/connector/impl/AxonServerManagedChannelIntegrationTest.java
index ba647553..dbf03bcc 100644
--- a/src/test/java/io/axoniq/axonserver/connector/impl/AxonServerManagedChannelIntegrationTest.java
+++ b/src/test/java/io/axoniq/axonserver/connector/impl/AxonServerManagedChannelIntegrationTest.java
@@ -18,7 +18,7 @@
 
 import io.axoniq.axonserver.connector.AbstractAxonServerIntegrationTest;
 import io.axoniq.axonserver.grpc.control.ClientIdentification;
-import io.axoniq.axonserver.grpc.event.Confirmation;
+import io.axoniq.axonserver.grpc.event.ConfirmationWithConsistencyMarker;
 import io.axoniq.axonserver.grpc.event.Event;
 import io.axoniq.axonserver.grpc.event.EventStoreGrpc;
 import io.grpc.ConnectivityState;
@@ -170,7 +170,7 @@ void testCallOnDisconnectedChannelFailImmediately() throws IOException {
 
         EventStoreGrpc.EventStoreStub stub = EventStoreGrpc.newStub(testSubject);
 
-        ClientResponseObserver<Event, Confirmation> observer = mock(ClientResponseObserver.class);
+        ClientResponseObserver<Event, ConfirmationWithConsistencyMarker> observer = mock(ClientResponseObserver.class);
         StreamObserver<Event> upstream = stub.appendEvent(observer);
 
         InOrder inOrder = Mockito.inOrder(observer);