diff --git a/docker/pom.xml b/docker/pom.xml
index 41a7e7c45..0dd240936 100644
--- a/docker/pom.xml
+++ b/docker/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>joyqueue-docker</artifactId>
diff --git a/docker/server/pom.xml b/docker/server/pom.xml
index e572620af..b2a77c20f 100644
--- a/docker/server/pom.xml
+++ b/docker/server/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-docker</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>docker-server</artifactId>
diff --git a/docker/web/pom.xml b/docker/web/pom.xml
index bffeaff73..8ace9c7d1 100644
--- a/docker/web/pom.xml
+++ b/docker/web/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-docker</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>docker-web</artifactId>
diff --git a/joyqueue-client/joyqueue-client-all-shaded/pom.xml b/joyqueue-client/joyqueue-client-all-shaded/pom.xml
index 22192676b..b864575c3 100644
--- a/joyqueue-client/joyqueue-client-all-shaded/pom.xml
+++ b/joyqueue-client/joyqueue-client-all-shaded/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-all/pom.xml b/joyqueue-client/joyqueue-client-all/pom.xml
index 9213a1544..6df6ea3fb 100644
--- a/joyqueue-client/joyqueue-client-all/pom.xml
+++ b/joyqueue-client/joyqueue-client-all/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-core-shaded/pom.xml b/joyqueue-client/joyqueue-client-core-shaded/pom.xml
index 591c92567..bc67b783a 100644
--- a/joyqueue-client/joyqueue-client-core-shaded/pom.xml
+++ b/joyqueue-client/joyqueue-client-core-shaded/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-core/pom.xml b/joyqueue-client/joyqueue-client-core/pom.xml
index 187867b58..41de85b44 100644
--- a/joyqueue-client/joyqueue-client-core/pom.xml
+++ b/joyqueue-client/joyqueue-client-core/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-core/src/main/java/org/joyqueue/client/internal/producer/support/AdaptivePartitionSelector.java b/joyqueue-client/joyqueue-client-core/src/main/java/org/joyqueue/client/internal/producer/support/AdaptivePartitionSelector.java
index 056834628..4686d1347 100644
--- a/joyqueue-client/joyqueue-client-core/src/main/java/org/joyqueue/client/internal/producer/support/AdaptivePartitionSelector.java
+++ b/joyqueue-client/joyqueue-client-core/src/main/java/org/joyqueue/client/internal/producer/support/AdaptivePartitionSelector.java
@@ -55,13 +55,14 @@ protected Nodes getTopicNodes(TopicMetadata topicMetadata, List<BrokerNode> brok
         Nodes cacheNodes = topicMetadata.getAttachment(NODES_CACHE_KEY);
         if (cacheNodes == null) {
             cacheNodes = new Nodes();
+            cacheNodes.setAttachment(topicMetadata.getTopic());
             Nodes oldNodes = topicMetadata.putIfAbsentAttachment(NODES_CACHE_KEY, cacheNodes);
             if (oldNodes != null) {
                 cacheNodes = oldNodes;
             }
         }
 
-        List<Node> cacheNodeList = Lists.newArrayListWithCapacity(brokerNodes.size());
+        List<Node> nodeList = Lists.newArrayListWithCapacity(brokerNodes.size());
         for (BrokerNode brokerNode : brokerNodes) {
             Node node = brokerNode.getAttachment(NODE_CACHE_KEY);
             if (node == null) {
@@ -74,12 +75,13 @@ protected Nodes getTopicNodes(TopicMetadata topicMetadata, List<BrokerNode> brok
                     node = oldNode;
                 }
             }
-            cacheNodeList.add(node);
+            nodeList.add(node);
         }
 
         Nodes nodes = new Nodes();
         nodes.setMetric(cacheNodes.getMetric());
-        nodes.setNodes(cacheNodeList);
+        nodes.setNodes(nodeList);
+        nodes.setAttachment(cacheNodes.getAttachment());
         return nodes;
     }
 
diff --git a/joyqueue-client/joyqueue-client-kafka/pom.xml b/joyqueue-client/joyqueue-client-kafka/pom.xml
index 97888fe32..5c1a144e4 100644
--- a/joyqueue-client/joyqueue-client-kafka/pom.xml
+++ b/joyqueue-client/joyqueue-client-kafka/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-loadbalance-adaptive/pom.xml b/joyqueue-client/joyqueue-client-loadbalance-adaptive/pom.xml
index 7c3a712ed..36dbe0ccd 100644
--- a/joyqueue-client/joyqueue-client-loadbalance-adaptive/pom.xml
+++ b/joyqueue-client/joyqueue-client-loadbalance-adaptive/pom.xml
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -17,6 +15,10 @@
             <groupId>io.dropwizard.metrics</groupId>
             <artifactId>metrics-core</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>junit</groupId>
diff --git a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/AdaptiveLoadBalance.java b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/AdaptiveLoadBalance.java
index a835632fe..8bf7b17e9 100644
--- a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/AdaptiveLoadBalance.java
+++ b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/AdaptiveLoadBalance.java
@@ -1,5 +1,7 @@
 package org.joyqueue.client.loadbalance.adaptive;
 
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
 import org.joyqueue.client.loadbalance.adaptive.config.AdaptiveLoadBalanceConfig;
 import org.joyqueue.client.loadbalance.adaptive.node.Node;
 import org.joyqueue.client.loadbalance.adaptive.node.Nodes;
@@ -7,6 +9,8 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
 
 /**
  * AdaptiveLoadBalance
@@ -21,9 +25,14 @@ public class AdaptiveLoadBalance {
     private WeightLoadBalance weightLoadBalance = new WeightLoadBalance();
     private RandomLoadBalance randomLoadBalance = new RandomLoadBalance();
 
+    private Cache<String, Node> selectCache;
+
     public AdaptiveLoadBalance(AdaptiveLoadBalanceConfig config) {
         this.config = config;
         this.scoreJudges = getScoreJudges(config);
+        this.selectCache = CacheBuilder.newBuilder()
+                .expireAfterWrite(config.getComputeInterval(), TimeUnit.MILLISECONDS)
+                .build();
     }
 
     protected List<ScoreJudge> getScoreJudges(AdaptiveLoadBalanceConfig config) {
@@ -48,6 +57,17 @@ protected boolean isStartup(Nodes nodes) {
     }
 
     protected Node adaptiveSelect(Nodes nodes) {
+        String cacheKey = nodes.toString();
+        try {
+            return selectCache.get(cacheKey, () -> {
+                return doAdaptiveSelect(nodes);
+            });
+        } catch (ExecutionException e) {
+            return doAdaptiveSelect(nodes);
+        }
+    }
+
+    public Node doAdaptiveSelect(Nodes nodes) {
         List<WeightNode> weightNodes = new ArrayList<>(nodes.getNodes().size());
         for (Node node : nodes.getNodes()) {
             double score = 0;
diff --git a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/config/AdaptiveLoadBalanceConfig.java b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/config/AdaptiveLoadBalanceConfig.java
index b19edd430..7414b8aa0 100644
--- a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/config/AdaptiveLoadBalanceConfig.java
+++ b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/config/AdaptiveLoadBalanceConfig.java
@@ -9,6 +9,7 @@ public class AdaptiveLoadBalanceConfig {
 
     private int ssthreshhold = 10;
     private String[] judges;
+    private int computeInterval = 1000 * 1;
 
     public int getSsthreshhold() {
         return ssthreshhold;
@@ -25,4 +26,12 @@ public String[] getJudges() {
     public void setJudges(String[] judges) {
         this.judges = judges;
     }
+
+    public int getComputeInterval() {
+        return computeInterval;
+    }
+
+    public void setComputeInterval(int computeInterval) {
+        this.computeInterval = computeInterval;
+    }
 }
\ No newline at end of file
diff --git a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Node.java b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Node.java
index a0f9588c3..9a99e907c 100644
--- a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Node.java
+++ b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Node.java
@@ -10,6 +10,7 @@ public class Node {
     private Metric metric = new Metric();
     private String url;
     private boolean nearby;
+    private Object attachment;
 
     public Node() {
     }
@@ -38,4 +39,21 @@ public void setNearby(boolean nearby) {
     public boolean isNearby() {
         return nearby;
     }
+
+    public Object getAttachment() {
+        return attachment;
+    }
+
+    public void setAttachment(Object attachment) {
+        this.attachment = attachment;
+    }
+
+    @Override
+    public String toString() {
+        return "Node{" +
+                "url='" + url + '\'' +
+                ", nearby=" + nearby +
+                ", attachment=" + attachment +
+                '}';
+    }
 }
\ No newline at end of file
diff --git a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Nodes.java b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Nodes.java
index 481b1bee7..68388fa57 100644
--- a/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Nodes.java
+++ b/joyqueue-client/joyqueue-client-loadbalance-adaptive/src/main/java/org/joyqueue/client/loadbalance/adaptive/node/Nodes.java
@@ -11,6 +11,7 @@ public class Nodes {
 
     private Metric metric = new Metric();
     private List<Node> nodes;
+    private Object attachment;
 
     public Nodes() {
     }
@@ -34,4 +35,20 @@ public void setNodes(List<Node> nodes) {
     public List<Node> getNodes() {
         return nodes;
     }
+
+    public Object getAttachment() {
+        return attachment;
+    }
+
+    public void setAttachment(Object attachment) {
+        this.attachment = attachment;
+    }
+
+    @Override
+    public String toString() {
+        return "Nodes{" +
+                "nodes=" + nodes +
+                ", attachment=" + attachment +
+                '}';
+    }
 }
\ No newline at end of file
diff --git a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-kafka/pom.xml b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-kafka/pom.xml
index 0a60c8a8e..b76ec9193 100644
--- a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-kafka/pom.xml
+++ b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-kafka/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client-samples</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-openmessaging/pom.xml b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-openmessaging/pom.xml
index 7d5c2cf19..7097f322c 100644
--- a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-openmessaging/pom.xml
+++ b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-openmessaging/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client-samples</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-spring/pom.xml b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-spring/pom.xml
index 73ad99258..bca2c4ef7 100644
--- a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-spring/pom.xml
+++ b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-spring/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client-samples</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-springboot/pom.xml b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-springboot/pom.xml
index 1f2a7e587..c6e2f2361 100644
--- a/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-springboot/pom.xml
+++ b/joyqueue-client/joyqueue-client-samples/joyqueue-client-samples-springboot/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client-samples</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/joyqueue-client-samples/pom.xml b/joyqueue-client/joyqueue-client-samples/pom.xml
index c6ede4ab1..b3628b75d 100644
--- a/joyqueue-client/joyqueue-client-samples/pom.xml
+++ b/joyqueue-client/joyqueue-client-samples/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-client</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-client/pom.xml b/joyqueue-client/pom.xml
index 980617647..19c134ace 100644
--- a/joyqueue-client/pom.xml
+++ b/joyqueue-client/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-datasource/joyqueue-datasource-api/pom.xml b/joyqueue-common/joyqueue-datasource/joyqueue-datasource-api/pom.xml
index 156ec8158..946970b00 100644
--- a/joyqueue-common/joyqueue-datasource/joyqueue-datasource-api/pom.xml
+++ b/joyqueue-common/joyqueue-datasource/joyqueue-datasource-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-datasource</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-datasource/joyqueue-datasource-hikaricp/pom.xml b/joyqueue-common/joyqueue-datasource/joyqueue-datasource-hikaricp/pom.xml
index 075d0f7e1..9b6ba2d5e 100644
--- a/joyqueue-common/joyqueue-datasource/joyqueue-datasource-hikaricp/pom.xml
+++ b/joyqueue-common/joyqueue-datasource/joyqueue-datasource-hikaricp/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-datasource</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-datasource/pom.xml b/joyqueue-common/joyqueue-datasource/pom.xml
index 9e600eaf8..0723d128f 100644
--- a/joyqueue-common/joyqueue-datasource/pom.xml
+++ b/joyqueue-common/joyqueue-datasource/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-hbase/pom.xml b/joyqueue-common/joyqueue-hbase/pom.xml
index 5d9eba9a5..dc9fd3f49 100644
--- a/joyqueue-common/joyqueue-hbase/pom.xml
+++ b/joyqueue-common/joyqueue-hbase/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-model/pom.xml b/joyqueue-common/joyqueue-model/pom.xml
index 04158948e..76b06900e 100644
--- a/joyqueue-common/joyqueue-model/pom.xml
+++ b/joyqueue-common/joyqueue-model/pom.xml
@@ -20,12 +20,12 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>joyqueue-model</artifactId>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
     <name>JoyQueue-Model</name>
     <description>Domain models</description>
     <dependencies>
diff --git a/joyqueue-common/joyqueue-model/src/main/java/org/joyqueue/domain/TopicConfig.java b/joyqueue-common/joyqueue-model/src/main/java/org/joyqueue/domain/TopicConfig.java
index 0576db86e..75e41853c 100644
--- a/joyqueue-common/joyqueue-model/src/main/java/org/joyqueue/domain/TopicConfig.java
+++ b/joyqueue-common/joyqueue-model/src/main/java/org/joyqueue/domain/TopicConfig.java
@@ -213,7 +213,7 @@ public boolean equals(Object o) {
             return true;
         }
 
-        return super.equals(((TopicConfig) o).getName());
+        return super.equals(o);
     }
 
     @Override
diff --git a/joyqueue-common/joyqueue-network/pom.xml b/joyqueue-common/joyqueue-network/pom.xml
index e0e27561a..94c167c0a 100644
--- a/joyqueue-common/joyqueue-network/pom.xml
+++ b/joyqueue-common/joyqueue-network/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/joyqueue-common/joyqueue-security/pom.xml b/joyqueue-common/joyqueue-security/pom.xml
index 85ac56a7d..13f49ddc3 100644
--- a/joyqueue-common/joyqueue-security/pom.xml
+++ b/joyqueue-common/joyqueue-security/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/joyqueue-toolkit/pom.xml b/joyqueue-common/joyqueue-toolkit/pom.xml
index 014dc6368..b32c0b4db 100644
--- a/joyqueue-common/joyqueue-toolkit/pom.xml
+++ b/joyqueue-common/joyqueue-toolkit/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-common</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-common/pom.xml b/joyqueue-common/pom.xml
index 899ad2769..a56eeef25 100644
--- a/joyqueue-common/pom.xml
+++ b/joyqueue-common/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-common</artifactId>
     <name>JoyQueue-Common</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-data-model/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-data-model/pom.xml
index d95739912..678f04314 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-data-model/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-data-model/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-data</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-data-model</artifactId>
     <name>JoyQueue-Data-Model</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-api/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-api/pom.xml
index 35ae2d142..da90443af 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-api/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-api/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-data-repository</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-data-repository-api</artifactId>
     <name>JoyQueue-Data-Repository-API</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-mybatis/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-mybatis/pom.xml
index de82c40bf..19fb9fc67 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-mybatis/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-data-repository/joyqueue-data-repository-mybatis/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-data-repository</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-console/joyqueue-data/joyqueue-data-repository/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-data-repository/pom.xml
index 1ae191bb8..83595b8da 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-data-repository/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-data-repository/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-data</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-data-repository</artifactId>
     <name>JoyQueue-Data-Repository</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-data-service/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-data-service/pom.xml
index 5fd5c42ad..18c2b09a8 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-data-service/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-data-service/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-data</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-api/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-api/pom.xml
index 646852b91..b02ccf7f0 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-api/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-api/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-token</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-token-api</artifactId>
     <name>JoyQueue-Token-API</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid-starter/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid-starter/pom.xml
index 37be60ed3..996707bce 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid-starter/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid-starter/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-token</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-token-uuid-starter</artifactId>
     <name>JoyQueue-Token-UUID-Starter</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid/pom.xml
index 43a6c3521..92206f1d7 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-token/joyqueue-token-uuid/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-token</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-token-uuid</artifactId>
     <name>JoyQueue-Token-UUID</name>
diff --git a/joyqueue-console/joyqueue-data/joyqueue-token/pom.xml b/joyqueue-console/joyqueue-data/joyqueue-token/pom.xml
index 5f4d23271..f5a5b703f 100644
--- a/joyqueue-console/joyqueue-data/joyqueue-token/pom.xml
+++ b/joyqueue-console/joyqueue-data/joyqueue-token/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-data</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-token</artifactId>
     <name>JoyQueue-Token</name>
diff --git a/joyqueue-console/joyqueue-data/pom.xml b/joyqueue-console/joyqueue-data/pom.xml
index 165b6543b..70b3633a1 100644
--- a/joyqueue-console/joyqueue-data/pom.xml
+++ b/joyqueue-console/joyqueue-data/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-console</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-data</artifactId>
     <name>JoyQueue-Data</name>
diff --git a/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-api/pom.xml b/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-api/pom.xml
index fe35169c2..7a8a02298 100644
--- a/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-api/pom.xml
+++ b/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-api/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>joyqueue-message-filter</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <name>JoyQueue-Message-Filter-Api</name>
diff --git a/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-s3/pom.xml b/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-s3/pom.xml
index 2da49f249..19486a22d 100644
--- a/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-s3/pom.xml
+++ b/joyqueue-console/joyqueue-message-filter/joyqueue-message-filter-s3/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>joyqueue-message-filter</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <name>JoyQueue-Message-Filter-S3</name>
diff --git a/joyqueue-console/joyqueue-message-filter/pom.xml b/joyqueue-console/joyqueue-message-filter/pom.xml
index 363e806b6..3ef9cc88b 100644
--- a/joyqueue-console/joyqueue-message-filter/pom.xml
+++ b/joyqueue-console/joyqueue-message-filter/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>joyqueue-console</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>joyqueue-message-filter</artifactId>
diff --git a/joyqueue-console/joyqueue-portal/pom.xml b/joyqueue-console/joyqueue-portal/pom.xml
index 314c87df6..513efd366 100644
--- a/joyqueue-console/joyqueue-portal/pom.xml
+++ b/joyqueue-console/joyqueue-portal/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>joyqueue-console</artifactId>
     <groupId>org.joyqueue</groupId>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-console/joyqueue-web/joyqueue-web-application/pom.xml b/joyqueue-console/joyqueue-web/joyqueue-web-application/pom.xml
index 774afa31d..8fd14d1d7 100644
--- a/joyqueue-console/joyqueue-web/joyqueue-web-application/pom.xml
+++ b/joyqueue-console/joyqueue-web/joyqueue-web-application/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-web</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-web-application</artifactId>
 
diff --git a/joyqueue-console/joyqueue-web/joyqueue-web-handler/pom.xml b/joyqueue-console/joyqueue-web/joyqueue-web-handler/pom.xml
index d83203863..3500ee037 100644
--- a/joyqueue-console/joyqueue-web/joyqueue-web-handler/pom.xml
+++ b/joyqueue-console/joyqueue-web/joyqueue-web-handler/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-web</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-web-handler</artifactId>
     <name>JoyQueue-Web-Handler</name>
diff --git a/joyqueue-console/joyqueue-web/joyqueue-web-springboot-starter/pom.xml b/joyqueue-console/joyqueue-web/joyqueue-web-springboot-starter/pom.xml
index fafbb9de0..3041daceb 100644
--- a/joyqueue-console/joyqueue-web/joyqueue-web-springboot-starter/pom.xml
+++ b/joyqueue-console/joyqueue-web/joyqueue-web-springboot-starter/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-web</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <artifactId>joyqueue-web-springboot-starter</artifactId>
     <name>JoyQueue-Web-SpringBoot-Starter</name>
diff --git a/joyqueue-console/joyqueue-web/pom.xml b/joyqueue-console/joyqueue-web/pom.xml
index b34adb947..c7abbbbfa 100644
--- a/joyqueue-console/joyqueue-web/pom.xml
+++ b/joyqueue-console/joyqueue-web/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue-console</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
     <artifactId>joyqueue-web</artifactId>
     <name>JoyQueue-Web</name>
     <description>A Web-based administration console for JoyQueue</description>
diff --git a/joyqueue-console/pom.xml b/joyqueue-console/pom.xml
index 7d2055fb0..b523a6c07 100644
--- a/joyqueue-console/pom.xml
+++ b/joyqueue-console/pom.xml
@@ -20,10 +20,10 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
     <packaging>pom</packaging>
     <artifactId>joyqueue-console</artifactId>
     <name>JoyQueue-Console</name>
diff --git a/joyqueue-distribution/joyqueue-distribution-server/pom.xml b/joyqueue-distribution/joyqueue-distribution-server/pom.xml
index 745c83cc7..a4449cda5 100644
--- a/joyqueue-distribution/joyqueue-distribution-server/pom.xml
+++ b/joyqueue-distribution/joyqueue-distribution-server/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-distribution</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-distribution/joyqueue-distribution-web/pom.xml b/joyqueue-distribution/joyqueue-distribution-web/pom.xml
index bf468c04b..9d4a13c51 100644
--- a/joyqueue-distribution/joyqueue-distribution-web/pom.xml
+++ b/joyqueue-distribution/joyqueue-distribution-web/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-distribution</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-distribution/pom.xml b/joyqueue-distribution/pom.xml
index af3b93045..8109f8f14 100644
--- a/joyqueue-distribution/pom.xml
+++ b/joyqueue-distribution/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
diff --git a/joyqueue-openmessaging/openmessaging-samples/pom.xml b/joyqueue-openmessaging/openmessaging-samples/pom.xml
index 7e4ceccdc..bf5890933 100644
--- a/joyqueue-openmessaging/openmessaging-samples/pom.xml
+++ b/joyqueue-openmessaging/openmessaging-samples/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-openmessaging</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-autoconfigure/pom.xml b/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-autoconfigure/pom.xml
index b3bce2a0f..2f61e980c 100644
--- a/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-autoconfigure/pom.xml
+++ b/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-autoconfigure/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>openmessaging-spring-boot</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-starter/pom.xml b/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-starter/pom.xml
index c1e5e0e6c..93e85da8b 100644
--- a/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-starter/pom.xml
+++ b/joyqueue-openmessaging/openmessaging-spring-boot/openmessaging-spring-boot-starter/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>openmessaging-spring-boot</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-openmessaging/openmessaging-spring-boot/pom.xml b/joyqueue-openmessaging/openmessaging-spring-boot/pom.xml
index 1ef46ac38..26985d7da 100644
--- a/joyqueue-openmessaging/openmessaging-spring-boot/pom.xml
+++ b/joyqueue-openmessaging/openmessaging-spring-boot/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-openmessaging</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-openmessaging/openmessaging-spring/pom.xml b/joyqueue-openmessaging/openmessaging-spring/pom.xml
index c14ec2878..e77d17dfa 100644
--- a/joyqueue-openmessaging/openmessaging-spring/pom.xml
+++ b/joyqueue-openmessaging/openmessaging-spring/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-openmessaging</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-openmessaging/pom.xml b/joyqueue-openmessaging/pom.xml
index 997b839ab..df77aa275 100644
--- a/joyqueue-openmessaging/pom.xml
+++ b/joyqueue-openmessaging/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-archive/joyqueue-archive-api/pom.xml b/joyqueue-server/joyqueue-archive/joyqueue-archive-api/pom.xml
index f953030de..3d7ccd71e 100644
--- a/joyqueue-server/joyqueue-archive/joyqueue-archive-api/pom.xml
+++ b/joyqueue-server/joyqueue-archive/joyqueue-archive-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-archive</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-archive/joyqueue-archive-hbase/pom.xml b/joyqueue-server/joyqueue-archive/joyqueue-archive-hbase/pom.xml
index 3792ec4df..dc387f2f3 100644
--- a/joyqueue-server/joyqueue-archive/joyqueue-archive-hbase/pom.xml
+++ b/joyqueue-server/joyqueue-archive/joyqueue-archive-hbase/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-archive</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-archive/pom.xml b/joyqueue-server/joyqueue-archive/pom.xml
index 53689e64c..49e4f3f31 100644
--- a/joyqueue-server/joyqueue-archive/pom.xml
+++ b/joyqueue-server/joyqueue-archive/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-broker-core/pom.xml b/joyqueue-server/joyqueue-broker-core/pom.xml
index 6fb830924..b7ad61cb0 100644
--- a/joyqueue-server/joyqueue-broker-core/pom.xml
+++ b/joyqueue-server/joyqueue-broker-core/pom.xml
@@ -20,14 +20,14 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>joyqueue-broker-core</artifactId>
     <name>JoyQueue-Broker-Core</name>
     <description>Broker core library</description>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <dependencies>
         <dependency>
@@ -106,7 +106,7 @@
         <dependency>
             <groupId>org.joyqueue</groupId>
             <artifactId>joyqueue-store-core</artifactId>
-            <version>4.2.7.RC3</version>
+            <version>4.2.8-SNAPSHOT</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfig.java b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfig.java
index 1d2045386..2a04414e1 100644
--- a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfig.java
+++ b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfig.java
@@ -49,6 +49,10 @@ public int getMinDelay() {
         return propertySupplier.getValue(LimitConfigKey.MIN_DELAY);
     }
 
+    public int getConflictDelay() {
+        return propertySupplier.getValue(LimitConfigKey.CONFLICT_DELAY);
+    }
+
     public String getRejectedStrategy() {
         return propertySupplier.getValue(LimitConfigKey.REJECTED_STRATEGY);
     }
diff --git a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfigKey.java b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfigKey.java
index ab5ddc826..d6c2036bc 100644
--- a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfigKey.java
+++ b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/config/LimitConfigKey.java
@@ -36,6 +36,8 @@ public enum LimitConfigKey implements PropertyDef {
     MAX_DELAY("limit.delay.max", 1000, PropertyDef.Type.INT),
     // 最小延时
     MIN_DELAY("limit.delay.min", 100, PropertyDef.Type.INT),
+    // 冲突延迟
+    CONFLICT_DELAY("limit.conflict.delay", 0, PropertyDef.Type.INT),
 
     // 拒绝策略
     REJECTED_STRATEGY("limit.rejected.strategy", "delay", PropertyDef.Type.STRING),
diff --git a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/filter/LimitFilter.java b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/filter/LimitFilter.java
index 99c1dc021..894e7fcbf 100644
--- a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/filter/LimitFilter.java
+++ b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/filter/LimitFilter.java
@@ -96,7 +96,7 @@ protected Command doLimit(Transport transport, Command request, Command response
 
     protected int getDelay(Transport transport, Command request, Command response, boolean isRequired) {
         if (!isRequired) {
-            return config.getMinDelay();
+            return config.getConflictDelay();
         }
         int delay = config.getDelay();
         if (delay == LimitConfig.DELAY_DYNAMIC) {
diff --git a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/support/DefaultRateLimiter.java b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/support/DefaultRateLimiter.java
index 176056ef5..3416c9d2f 100644
--- a/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/support/DefaultRateLimiter.java
+++ b/joyqueue-server/joyqueue-broker-core/src/main/java/org/joyqueue/broker/limit/support/DefaultRateLimiter.java
@@ -77,4 +77,12 @@ public boolean releaseRequire() {
         semaphore.release();
         return true;
     }
+
+    public int getTps() {
+        return tps;
+    }
+
+    public int getTraffic() {
+        return traffic;
+    }
 }
\ No newline at end of file
diff --git a/joyqueue-server/joyqueue-broker-kafka/pom.xml b/joyqueue-server/joyqueue-broker-kafka/pom.xml
index 074a990f7..9d0fc09f5 100644
--- a/joyqueue-server/joyqueue-broker-kafka/pom.xml
+++ b/joyqueue-server/joyqueue-broker-kafka/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-broker-monitor-pth/pom.xml b/joyqueue-server/joyqueue-broker-monitor-pth/pom.xml
index eaf7ab08b..50369b768 100644
--- a/joyqueue-server/joyqueue-broker-monitor-pth/pom.xml
+++ b/joyqueue-server/joyqueue-broker-monitor-pth/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-broker-mqtt/pom.xml b/joyqueue-server/joyqueue-broker-mqtt/pom.xml
index 55ec8328c..648dcb273 100644
--- a/joyqueue-server/joyqueue-broker-mqtt/pom.xml
+++ b/joyqueue-server/joyqueue-broker-mqtt/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-broker-protocol/pom.xml b/joyqueue-server/joyqueue-broker-protocol/pom.xml
index 60de01321..45d367989 100644
--- a/joyqueue-server/joyqueue-broker-protocol/pom.xml
+++ b/joyqueue-server/joyqueue-broker-protocol/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -28,7 +28,7 @@
     <name>JoyQueue-Broker-Protocol</name>
     <description>JoyQueue protocol support library</description>
 
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
 
     <dependencies>
         <dependency>
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-admin/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-admin/pom.xml
index 4c5aac223..f6399dfa5 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-admin/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-admin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <artifactId>joyqueue-nsr-admin</artifactId>
     <name>JoyQueue-NamingService-Admin</name>
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-composition/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-composition/pom.xml
index eb6bb7a3b..77fca1471 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-composition/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-composition/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-core/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-core/pom.xml
index 8e122cb31..f7734c73c 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-core/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-core/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-ignite/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-ignite/pom.xml
index d780d503b..c30f2d198 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-ignite/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-ignite/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-journalkeeper/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-journalkeeper/pom.xml
index 73ada48a7..bb6a7df09 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-journalkeeper/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-journalkeeper/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-sql/pom.xml b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-sql/pom.xml
index 1542669ec..076992e47 100644
--- a/joyqueue-server/joyqueue-nsr/joyqueue-nsr-sql/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/joyqueue-nsr-sql/pom.xml
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>joyqueue-nsr</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-nsr/pom.xml b/joyqueue-server/joyqueue-nsr/pom.xml
index 221c4512c..bf0545978 100644
--- a/joyqueue-server/joyqueue-nsr/pom.xml
+++ b/joyqueue-server/joyqueue-nsr/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-retry/joyqueue-retry-api/pom.xml b/joyqueue-server/joyqueue-retry/joyqueue-retry-api/pom.xml
index d66e7e1e4..574a5b634 100644
--- a/joyqueue-server/joyqueue-retry/joyqueue-retry-api/pom.xml
+++ b/joyqueue-server/joyqueue-retry/joyqueue-retry-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-retry</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-retry/joyqueue-retry-db-console/pom.xml b/joyqueue-server/joyqueue-retry/joyqueue-retry-db-console/pom.xml
index 221984fd4..4b79591c3 100644
--- a/joyqueue-server/joyqueue-retry/joyqueue-retry-db-console/pom.xml
+++ b/joyqueue-server/joyqueue-retry/joyqueue-retry-db-console/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-retry</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -32,12 +32,12 @@
         <dependency>
             <groupId>org.joyqueue</groupId>
             <artifactId>joyqueue-retry-api</artifactId>
-            <version>4.2.7.RC3</version>
+            <version>4.2.8-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>org.joyqueue</groupId>
             <artifactId>joyqueue-retry-db</artifactId>
-            <version>4.2.7.RC3</version>
+            <version>4.2.8-SNAPSHOT</version>
         </dependency>
     </dependencies>
 
diff --git a/joyqueue-server/joyqueue-retry/joyqueue-retry-db/pom.xml b/joyqueue-server/joyqueue-retry/joyqueue-retry-db/pom.xml
index f275cc4b4..ed8a63652 100644
--- a/joyqueue-server/joyqueue-retry/joyqueue-retry-db/pom.xml
+++ b/joyqueue-server/joyqueue-retry/joyqueue-retry-db/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-retry</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-retry/joyqueue-retry-h2/pom.xml b/joyqueue-server/joyqueue-retry/joyqueue-retry-h2/pom.xml
index 267f7bd4d..38a1c018b 100644
--- a/joyqueue-server/joyqueue-retry/joyqueue-retry-h2/pom.xml
+++ b/joyqueue-server/joyqueue-retry/joyqueue-retry-h2/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-retry</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-retry/joyqueue-retry-remote/pom.xml b/joyqueue-server/joyqueue-retry/joyqueue-retry-remote/pom.xml
index 16dd74647..cad6452cb 100644
--- a/joyqueue-server/joyqueue-retry/joyqueue-retry-remote/pom.xml
+++ b/joyqueue-server/joyqueue-retry/joyqueue-retry-remote/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-retry</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-retry/pom.xml b/joyqueue-server/joyqueue-retry/pom.xml
index b2cc0a511..d22976519 100644
--- a/joyqueue-server/joyqueue-retry/pom.xml
+++ b/joyqueue-server/joyqueue-retry/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-server-runtime/pom.xml b/joyqueue-server/joyqueue-server-runtime/pom.xml
index bfb66ca8a..cf3bc61c4 100644
--- a/joyqueue-server/joyqueue-server-runtime/pom.xml
+++ b/joyqueue-server/joyqueue-server-runtime/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-store/joyqueue-store-api/pom.xml b/joyqueue-server/joyqueue-store/joyqueue-store-api/pom.xml
index 00c495dea..64c5629a1 100644
--- a/joyqueue-server/joyqueue-store/joyqueue-store-api/pom.xml
+++ b/joyqueue-server/joyqueue-store/joyqueue-store-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-store</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-store/joyqueue-store-core/pom.xml b/joyqueue-server/joyqueue-store/joyqueue-store-core/pom.xml
index a9bebdb46..63e25949b 100644
--- a/joyqueue-server/joyqueue-store/joyqueue-store-core/pom.xml
+++ b/joyqueue-server/joyqueue-store/joyqueue-store-core/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-store</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/joyqueue-server/joyqueue-store/pom.xml b/joyqueue-server/joyqueue-store/pom.xml
index c7cf0f8a5..975428b05 100644
--- a/joyqueue-server/joyqueue-store/pom.xml
+++ b/joyqueue-server/joyqueue-store/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue-server</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <name>JoyQueue-Store</name>
diff --git a/joyqueue-server/pom.xml b/joyqueue-server/pom.xml
index ed3b2fa7c..f77afc3cb 100644
--- a/joyqueue-server/pom.xml
+++ b/joyqueue-server/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index c00747862..ba3546c0a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.joyqueue</groupId>
-    <version>4.2.7.RC3</version>
+    <version>4.2.8-SNAPSHOT</version>
     <artifactId>joyqueue</artifactId>
     <packaging>pom</packaging>
     <url>http://www.joyqueue.org</url>
diff --git a/toolkit/doc/pom.xml b/toolkit/doc/pom.xml
index 078625559..05c1150b3 100644
--- a/toolkit/doc/pom.xml
+++ b/toolkit/doc/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>toolkit</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/toolkit/pom.xml b/toolkit/pom.xml
index 877424c79..2c01363cd 100644
--- a/toolkit/pom.xml
+++ b/toolkit/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>joyqueue</artifactId>
         <groupId>org.joyqueue</groupId>
-        <version>4.2.7.RC3</version>
+        <version>4.2.8-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>