diff --git a/mqtt-impl/pom.xml b/mqtt-impl/pom.xml
index 514fa899b..4e29faef1 100644
--- a/mqtt-impl/pom.xml
+++ b/mqtt-impl/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>2.10.0.0-rc4</version>
+        <version>3.4.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt</artifactId>
diff --git a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/AbstractQosPublishHandler.java b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/AbstractQosPublishHandler.java
index 34f155ffb..eadaf4469 100644
--- a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/AbstractQosPublishHandler.java
+++ b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/AbstractQosPublishHandler.java
@@ -25,7 +25,7 @@
 import io.streamnative.pulsar.handlers.mqtt.utils.PulsarTopicUtils;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
-import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.bookkeeper.mledger.Position;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.pulsar.broker.PulsarService;
 import org.apache.pulsar.broker.service.BrokerServiceException;
@@ -63,7 +63,7 @@ protected CompletableFuture<Optional<Topic>> getTopicReference(String mqttTopicN
                 });
     }
 
-    protected CompletableFuture<PositionImpl> writeToPulsarTopic(Connection connection, MqttPublishMessage msg) {
+    protected CompletableFuture<Position> writeToPulsarTopic(Connection connection, MqttPublishMessage msg) {
         return writeToPulsarTopic(connection, msg, false);
     }
 
@@ -73,7 +73,7 @@ protected CompletableFuture<PositionImpl> writeToPulsarTopic(Connection connecti
      * @param checkSubscription Check if the subscription exists, throw #{MQTTNoMatchingSubscriberException}
      *                              if the subscription does not exist;
      */
-    protected CompletableFuture<PositionImpl> writeToPulsarTopic(Connection connection, MqttPublishMessage msg,
+    protected CompletableFuture<Position> writeToPulsarTopic(Connection connection, MqttPublishMessage msg,
                                                                  boolean checkSubscription) {
         TopicAliasManager topicAliasManager = connection.getTopicAliasManager();
         String producerName = connection.getClientId();
@@ -102,7 +102,7 @@ protected CompletableFuture<PositionImpl> writeToPulsarTopic(Connection connecti
         return getTopicReference(mqttTopicName).thenCompose(topicOp -> topicOp.map(topic -> {
             MessageImpl<byte[]> message = toPulsarMsg(configuration, topic, msg.variableHeader().properties(),
                     msg.payload().nioBuffer());
-            CompletableFuture<PositionImpl> ret = MessagePublishContext.publishMessages(producerName, message, topic);
+            CompletableFuture<Position> ret = MessagePublishContext.publishMessages(producerName, message, topic);
             message.recycle();
             return ret.thenApply(position -> {
                 if (checkSubscription && topic.getSubscriptions().isEmpty()) {
diff --git a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/proxy/PulsarServiceLookupHandler.java b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/proxy/PulsarServiceLookupHandler.java
index 3fa548985..b223a6ab9 100644
--- a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/proxy/PulsarServiceLookupHandler.java
+++ b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/proxy/PulsarServiceLookupHandler.java
@@ -32,13 +32,13 @@
 import org.apache.pulsar.broker.service.BrokerServiceException;
 import org.apache.pulsar.client.api.AuthenticationFactory;
 import org.apache.pulsar.client.api.PulsarClientException;
-import org.apache.pulsar.client.impl.Backoff;
-import org.apache.pulsar.client.impl.BackoffBuilder;
 import org.apache.pulsar.client.impl.PulsarClientImpl;
 import org.apache.pulsar.client.impl.conf.ClientConfigurationData;
 import org.apache.pulsar.client.util.ExecutorProvider;
 import org.apache.pulsar.client.util.ScheduledExecutorProvider;
 import org.apache.pulsar.common.naming.TopicName;
+import org.apache.pulsar.common.util.Backoff;
+import org.apache.pulsar.common.util.BackoffBuilder;
 import org.apache.pulsar.common.util.FutureUtil;
 import org.apache.pulsar.metadata.api.MetadataCache;
 import org.apache.pulsar.policies.data.loadbalancer.LocalBrokerData;
diff --git a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/MQTTBrokerProtocolMethodProcessor.java b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/MQTTBrokerProtocolMethodProcessor.java
index dc6117c1f..df7e5b4b7 100644
--- a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/MQTTBrokerProtocolMethodProcessor.java
+++ b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/MQTTBrokerProtocolMethodProcessor.java
@@ -71,7 +71,9 @@
 import java.util.stream.Collectors;
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.bookkeeper.mledger.Position;
+import org.apache.bookkeeper.mledger.PositionFactory;
+import org.apache.bookkeeper.mledger.impl.AckSetStateUtil;
 import org.apache.pulsar.broker.PulsarService;
 import org.apache.pulsar.broker.authentication.AuthenticationDataSource;
 import org.apache.pulsar.broker.authorization.AuthorizationService;
@@ -158,15 +160,15 @@ public void processPubAck(MqttAdapterMessage adapter) {
         int packetId = msg.variableHeader().messageId();
         OutstandingPacket packet = outstandingPacketContainer.remove(packetId);
         if (packet != null) {
-            PositionImpl position;
+            Position position;
             if (packet.isBatch()) {
                 long[] ackSets = new long[packet.getBatchSize()];
                 for (int i = 0; i < packet.getBatchSize(); i++) {
                     ackSets[i] = packet.getBatchIndex() == i ? 0 : 1;
                 }
-                position = PositionImpl.get(packet.getLedgerId(), packet.getEntryId(), ackSets);
+                position = AckSetStateUtil.createPositionWithAckSet(packet.getLedgerId(), packet.getEntryId(), ackSets);
             } else {
-                position = PositionImpl.get(packet.getLedgerId(), packet.getEntryId());
+                position = PositionFactory.create(packet.getLedgerId(), packet.getEntryId());
             }
             packet.getConsumer().getSubscription().acknowledgeMessage(Collections.singletonList(position),
                     CommandAck.AckType.Individual, Collections.emptyMap());
diff --git a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/systemtopic/SystemTopicBasedSystemEventService.java b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/systemtopic/SystemTopicBasedSystemEventService.java
index 12510fab0..9e8117455 100644
--- a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/systemtopic/SystemTopicBasedSystemEventService.java
+++ b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/support/systemtopic/SystemTopicBasedSystemEventService.java
@@ -31,10 +31,10 @@
 import org.apache.pulsar.client.api.Message;
 import org.apache.pulsar.client.api.MessageId;
 import org.apache.pulsar.client.api.PulsarClientException;
-import org.apache.pulsar.client.impl.Backoff;
 import org.apache.pulsar.client.util.RetryUtil;
 import org.apache.pulsar.common.naming.NamespaceName;
 import org.apache.pulsar.common.naming.TopicName;
+import org.apache.pulsar.common.util.Backoff;
 import org.apache.pulsar.common.util.FutureUtil;
 
 /**
diff --git a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/utils/MessagePublishContext.java b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/utils/MessagePublishContext.java
index f7a7d6874..bd694e8f3 100644
--- a/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/utils/MessagePublishContext.java
+++ b/mqtt-impl/src/main/java/io/streamnative/pulsar/handlers/mqtt/utils/MessagePublishContext.java
@@ -20,7 +20,8 @@
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.bookkeeper.mledger.Position;
+import org.apache.bookkeeper.mledger.PositionFactory;
 import org.apache.pulsar.broker.service.Topic;
 import org.apache.pulsar.broker.service.Topic.PublishContext;
 import org.apache.pulsar.client.api.Message;
@@ -34,7 +35,7 @@ public final class MessagePublishContext implements PublishContext {
     private String producerName;
     private Topic topic;
     private long startTimeNs;
-    private CompletableFuture<PositionImpl> positionFuture;
+    private CompletableFuture<Position> positionFuture;
 
     /**
      * Executed from managed ledger thread when the message is persisted.
@@ -50,13 +51,13 @@ public void completed(Exception exception, long ledgerId, long entryId) {
                         topic.getName(), ledgerId, entryId);
             }
             topic.recordAddLatency(System.nanoTime() - startTimeNs, TimeUnit.NANOSECONDS);
-            positionFuture.complete(PositionImpl.get(ledgerId, entryId));
+            positionFuture.complete(PositionFactory.create(ledgerId, entryId));
         }
         recycle();
     }
 
     // recycler
-    public static MessagePublishContext get(CompletableFuture<PositionImpl> positionFuture, String producerName,
+    public static MessagePublishContext get(CompletableFuture<Position> positionFuture, String producerName,
                                             Topic topic, long startTimeNs) {
         MessagePublishContext callback = RECYCLER.get();
         callback.positionFuture = positionFuture;
@@ -92,9 +93,9 @@ public void recycle() {
     /**
      * publish mqtt message to pulsar topic, no batch.
      */
-    public static CompletableFuture<PositionImpl> publishMessages(String producerName, Message<byte[]> message,
-                                                                  Topic topic) {
-        CompletableFuture<PositionImpl> future = new CompletableFuture<>();
+    public static CompletableFuture<Position> publishMessages(String producerName, Message<byte[]> message,
+                                                              Topic topic) {
+        CompletableFuture<Position> future = new CompletableFuture<>();
 
         ByteBuf headerAndPayload = messageToByteBuf(message);
         topic.publishMessage(headerAndPayload,
diff --git a/pom.xml b/pom.xml
index 1a8f9ba0d..7566b4657 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <groupId>io.streamnative.pulsar.handlers</groupId>
     <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
-    <version>2.10.0.0-rc4</version>
+    <version>3.4.0-SNAPSHOT</version>
     <name>StreamNative :: Pulsar Protocol Handler :: MoP Parent</name>
     <description>Parent for MQTT on Pulsar implemented using Pulsar Protocol Handler.</description>
 
@@ -49,7 +49,7 @@
         <mockito.version>2.22.0</mockito.version>
         <testng.version>6.14.3</testng.version>
         <awaitility.version>4.0.2</awaitility.version>
-        <pulsar.version>3.2.0-SNAPSHOT</pulsar.version>
+        <pulsar.version>3.4.0-SNAPSHOT</pulsar.version>
         <mqtt.codec.version>4.1.94.Final</mqtt.codec.version>
         <log4j2.version>2.18.0</log4j2.version>
         <fusesource.client.version>1.16</fusesource.client.version>
@@ -376,12 +376,10 @@
             <layout>default</layout>
             <url>https://repo1.maven.org/maven2</url>
         </repository>
-
         <repository>
             <id>snapshot</id>
             <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
         </repository>
-
         <repository>
             <snapshots>
                 <enabled>false</enabled>
@@ -390,5 +388,23 @@
             <name>bintray</name>
             <url>https://yahoo.bintray.com/maven</url>
         </repository>
+        <repository>
+            <id>ossrh</id>
+            <url>https://s01.oss.sonatype.org/service/local/repositories/0/content</url>
+        </repository>
+        <repository>
+            <id>nexus-snapshot</id>
+            <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
+        </repository>
     </repositories>
+    <distributionManagement>
+        <snapshotRepository>
+            <id>ossrh</id>
+            <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
+        </snapshotRepository>
+        <repository>
+            <id>ossrh</id>
+            <url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+        </repository>
+    </distributionManagement>
 </project>
diff --git a/tests/pom.xml b/tests/pom.xml
index 592d39b77..64897485d 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>2.10.0.0-rc4</version>
+        <version>3.4.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt-tests</artifactId>
diff --git a/tests/src/test/java/io/streamnative/pulsar/handlers/mqtt/base/MQTTProtocolHandlerTestBase.java b/tests/src/test/java/io/streamnative/pulsar/handlers/mqtt/base/MQTTProtocolHandlerTestBase.java
index c52b311a4..9e05df2d0 100644
--- a/tests/src/test/java/io/streamnative/pulsar/handlers/mqtt/base/MQTTProtocolHandlerTestBase.java
+++ b/tests/src/test/java/io/streamnative/pulsar/handlers/mqtt/base/MQTTProtocolHandlerTestBase.java
@@ -22,7 +22,6 @@
 import io.netty.channel.EventLoopGroup;
 import io.streamnative.pulsar.handlers.mqtt.MQTTCommonConfiguration;
 import io.streamnative.pulsar.handlers.mqtt.utils.ConfigurationUtils;
-import java.io.IOException;
 import java.lang.reflect.Field;
 import java.net.URI;
 import java.net.URL;
@@ -33,6 +32,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Predicate;
@@ -459,18 +459,19 @@ public void reallyShutdown() {
     private BookKeeperClientFactory mockBookKeeperClientFactory = new BookKeeperClientFactory() {
 
         @Override
-        public BookKeeper create(ServiceConfiguration conf, MetadataStoreExtended store, EventLoopGroup eventLoopGroup,
-                                 Optional<Class<? extends EnsemblePlacementPolicy>> ensemblePlacementPolicyClass,
-                                 Map<String, Object> ensemblePlacementPolicyProperties) throws IOException {
-            return mockBookKeeper;
+        public CompletableFuture<BookKeeper> create(ServiceConfiguration conf, MetadataStoreExtended store,
+                                                    EventLoopGroup eventLoopGroup,
+            Optional<Class<? extends EnsemblePlacementPolicy>> ensemblePlacementPolicyClass,
+            Map<String, Object> ensemblePlacementPolicyProperties) {
+            return CompletableFuture.completedFuture(mockBookKeeper);
         }
 
         @Override
-        public BookKeeper create(ServiceConfiguration conf, MetadataStoreExtended store, EventLoopGroup eventLoopGroup,
-                                 Optional<Class<? extends EnsemblePlacementPolicy>> ensemblePlacementPolicyClass,
-                                 Map<String, Object> ensemblePlacementPolicyProperties, StatsLogger statsLogger)
-                throws IOException {
-            return mockBookKeeper;
+        public CompletableFuture<BookKeeper> create(ServiceConfiguration conf, MetadataStoreExtended store,
+                                                    EventLoopGroup eventLoopGroup,
+            Optional<Class<? extends EnsemblePlacementPolicy>> ensemblePlacementPolicyClass,
+            Map<String, Object> ensemblePlacementPolicyProperties, StatsLogger statsLogger) {
+            return CompletableFuture.completedFuture(mockBookKeeper);
         }
 
         @Override