diff --git a/apm-application-toolkit/apm-toolkit-log4j-1.x/pom.xml b/apm-application-toolkit/apm-toolkit-log4j-1.x/pom.xml
index b70c1f362cabbb78a0f47817dcd59490521cfbb1..c13c0747c549d05976f2afb7b4abfa03d83d83be 100644
--- a/apm-application-toolkit/apm-toolkit-log4j-1.x/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-log4j-1.x/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-application-toolkit</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml b/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
index e7ab921828d4230bf2e7e783ecbfdc0b1efc6d63..973b8dc8804ba205e8280b8bdadf4dccabeb3773 100644
--- a/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-log4j-2.x/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-application-toolkit</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-application-toolkit/apm-toolkit-logback-1.x/pom.xml b/apm-application-toolkit/apm-toolkit-logback-1.x/pom.xml
index de28e2bfe205b294be9d2a62cb7a761e716aa96b..229a23246d05658595475fb83ede0fdb3dde340d 100644
--- a/apm-application-toolkit/apm-toolkit-logback-1.x/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-logback-1.x/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-application-toolkit</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-application-toolkit/apm-toolkit-opentracing/pom.xml b/apm-application-toolkit/apm-toolkit-opentracing/pom.xml
index e9143dd19b82ae05529584ab2b77c183a04b2fd1..8b936ef229486fffa7fb92a0811681dade9713d4 100644
--- a/apm-application-toolkit/apm-toolkit-opentracing/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-opentracing/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-application-toolkit</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-application-toolkit/apm-toolkit-trace/pom.xml b/apm-application-toolkit/apm-toolkit-trace/pom.xml
index 390fa6306d49a437ab672177560069870f7aabbe..987a4c63bd8a6b943fe7f9b8781dc5fac068ac82 100644
--- a/apm-application-toolkit/apm-toolkit-trace/pom.xml
+++ b/apm-application-toolkit/apm-toolkit-trace/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-application-toolkit</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-application-toolkit/pom.xml b/apm-application-toolkit/pom.xml
index c3ce08a4f26d89d48ad90029892b19d336e1da71..23d69aaa75dc79e010040b2c609b17e87f33ef3e 100644
--- a/apm-application-toolkit/pom.xml
+++ b/apm-application-toolkit/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apm-application-toolkit</artifactId>
diff --git a/apm-checkstyle/pom.xml b/apm-checkstyle/pom.xml
index 948907d287c87b4b8b4a68abad563b95e35a6d89..24812133f438af1df822d7ecc08ab28fe8777191 100644
--- a/apm-checkstyle/pom.xml
+++ b/apm-checkstyle/pom.xml
@@ -27,7 +27,7 @@
 
     <groupId>org.apache.skywalking</groupId>
     <artifactId>apm-checkstyle</artifactId>
-    <version>6.0.0-alpha-SNAPSHOT</version>
+    <version>6.0.0-alpha</version>
     <description>Module to hold Checkstyle for SkyWalking.</description>
 
     <properties>
@@ -64,4 +64,8 @@
             </plugin>
         </plugins>
     </build>
+
+  <scm>
+    <tag>v6.0.0-alpha</tag>
+  </scm>
 </project>
diff --git a/apm-commons/apm-datacarrier/pom.xml b/apm-commons/apm-datacarrier/pom.xml
index 93ad8905d89b78ffff711ffa5f112a07557c22d9..40190e332fde7b527020ad2ece83f0a2ef89d835 100644
--- a/apm-commons/apm-datacarrier/pom.xml
+++ b/apm-commons/apm-datacarrier/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-commons</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-commons/apm-util/pom.xml b/apm-commons/apm-util/pom.xml
index 2603f92b45fc577e3c4885184eaeda2d2e62bcae..3c74289a5be507c9b88d6b1bec3dfa037799a68d 100644
--- a/apm-commons/apm-util/pom.xml
+++ b/apm-commons/apm-util/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-commons</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-commons/pom.xml b/apm-commons/pom.xml
index edf1c3b9cea65cc0ee7cb08780e59daca71b9dd0..6b46de8eccb3e6dc0949e84b6075b84c05c7efad 100644
--- a/apm-commons/pom.xml
+++ b/apm-commons/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-dist/pom.xml b/apm-dist/pom.xml
index bbbfb80144b512c10762bf785f52e4fa18c08786..3143e8790d8da86351b6142908ca1ab9f3246717 100644
--- a/apm-dist/pom.xml
+++ b/apm-dist/pom.xml
@@ -17,12 +17,11 @@
   ~
   -->
 
-<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>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -82,12 +81,8 @@
                         </goals>
                         <configuration>
                             <tasks>
-                                <copy file="${project.build.directory}/apache-skywalking-apm-incubating.tar.gz"
-                                      tofile="${project.basedir}/../dist/apache-skywalking-apm-incubating.tar.gz"
-                                      overwrite="true"/>
-                                <copy file="${project.build.directory}/apache-skywalking-apm-incubating.zip"
-                                      tofile="${project.basedir}/../dist/apache-skywalking-apm-incubating.zip"
-                                      overwrite="true"/>
+                                <copy file="${project.build.directory}/apache-skywalking-apm-incubating.tar.gz" tofile="${project.basedir}/../dist/apache-skywalking-apm-incubating.tar.gz" overwrite="true" />
+                                <copy file="${project.build.directory}/apache-skywalking-apm-incubating.zip" tofile="${project.basedir}/../dist/apache-skywalking-apm-incubating.zip" overwrite="true" />
                             </tasks>
                         </configuration>
                     </execution>
diff --git a/apm-protocol/apm-network/pom.xml b/apm-protocol/apm-network/pom.xml
index 935d638ddcb52eb518286f0ef4ad8a70b83af035..0a858e87716575d1cccf57172bb429945e34a35e 100644
--- a/apm-protocol/apm-network/pom.xml
+++ b/apm-protocol/apm-network/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-protocol</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-protocol/pom.xml b/apm-protocol/pom.xml
index 0b59e5d95557bd876e83f4d17efe97fe2a61a2e2..a676aea42df8e5331e0cf583170966bff2a5f0fd 100644
--- a/apm-protocol/pom.xml
+++ b/apm-protocol/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-agent-core/pom.xml b/apm-sniffer/apm-agent-core/pom.xml
index cc95d79bff4722c8e1d648a72a3df21aa5e6dd12..58952fd17180ece0fb37ea3199698b21f34b2bf0 100644
--- a/apm-sniffer/apm-agent-core/pom.xml
+++ b/apm-sniffer/apm-agent-core/pom.xml
@@ -16,14 +16,13 @@
   ~
   -->
 
-<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">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sniffer</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-agent-core</artifactId>
@@ -214,8 +213,7 @@
                                 </filter>
                             </filters>
                             <transformers>
-                                <transformer
-                                    implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                             </transformers>
                         </configuration>
                     </execution>
@@ -231,7 +229,7 @@
                         </goals>
                         <configuration>
                             <tasks>
-                                <delete dir="${project.basedir}/../../packages"/>
+                                <delete dir="${project.basedir}/../../packages" />
                             </tasks>
                         </configuration>
                     </execution>
@@ -240,22 +238,14 @@
                         <phase>package</phase>
                         <configuration>
                             <target>
-                                <echo message="unjar"/>
-                                <unzip src="${project.build.directory}/${artifactId}-${version}.jar"
-                                       dest="${project.build.directory}/unpacked/"/>
-                                <echo message="rename service providers in META-INF/services"/>
-                                <move
-                                    file="${project.build.directory}/unpacked/META-INF/native/libnetty_tcnative_osx_x86_64.jnilib"
-                                    tofile="${project.build.directory}/unpacked/META-INF/native/liborg_apache_skywalking_apm_dependencies_netty_tcnative_osx_x86_64.jnilib"/>
-                                <move
-                                    file="${project.build.directory}/unpacked/META-INF/native/libnetty_tcnative_linux_x86_64.so"
-                                    tofile="${project.build.directory}/unpacked/META-INF/native/liborg_apache_skywalking_apm_dependencies_netty_tcnative_linux_x86_64.so"/>
-                                <move
-                                    file="${project.build.directory}/unpacked/META-INF/native/netty_tcnative_windows_x86_64.dll"
-                                    tofile="${project.build.directory}/unpacked/META-INF/native/org_apache_skywalking_apm_dependencies_netty_tcnative_windows_x86_64.dll"/>
-                                <echo message="jar back"/>
-                                <jar destfile="${project.build.directory}/${artifactId}-${version}.jar"
-                                     basedir="${project.build.directory}/unpacked"/>
+                                <echo message="unjar" />
+                                <unzip src="${project.build.directory}/${artifactId}-${version}.jar" dest="${project.build.directory}/unpacked/" />
+                                <echo message="rename service providers in META-INF/services" />
+                                <move file="${project.build.directory}/unpacked/META-INF/native/libnetty_tcnative_osx_x86_64.jnilib" tofile="${project.build.directory}/unpacked/META-INF/native/liborg_apache_skywalking_apm_dependencies_netty_tcnative_osx_x86_64.jnilib" />
+                                <move file="${project.build.directory}/unpacked/META-INF/native/libnetty_tcnative_linux_x86_64.so" tofile="${project.build.directory}/unpacked/META-INF/native/liborg_apache_skywalking_apm_dependencies_netty_tcnative_linux_x86_64.so" />
+                                <move file="${project.build.directory}/unpacked/META-INF/native/netty_tcnative_windows_x86_64.dll" tofile="${project.build.directory}/unpacked/META-INF/native/org_apache_skywalking_apm_dependencies_netty_tcnative_windows_x86_64.dll" />
+                                <echo message="jar back" />
+                                <jar destfile="${project.build.directory}/${artifactId}-${version}.jar" basedir="${project.build.directory}/unpacked" />
                             </target>
                         </configuration>
                         <goals>
diff --git a/apm-sniffer/apm-agent/pom.xml b/apm-sniffer/apm-agent/pom.xml
index dd63db85d7b1b8177ca989ce3046ca6b08131eb1..f2859e6de2fd90d2de70758790e6a0aba4e4d224 100644
--- a/apm-sniffer/apm-agent/pom.xml
+++ b/apm-sniffer/apm-agent/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sniffer</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-agent</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/activemq-5.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/activemq-5.x-plugin/pom.xml
index 52706f5e040a06285a2e0cc64413ec56ca958862..169c93df6b47ccb0965e3b2fcb3148e9f3ce103d 100644
--- a/apm-sniffer/apm-sdk-plugin/activemq-5.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/activemq-5.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/dubbo-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/dubbo-plugin/pom.xml
index c3aa8fc0c1d290eeb20e05302181dd2a5f81b888..cf209e1d0d45e7d83557243a2a7de756c3181447 100644
--- a/apm-sniffer/apm-sdk-plugin/dubbo-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/dubbo-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/elastic-job-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/elastic-job-2.x-plugin/pom.xml
index 7a2f96e47ece3a33ff82530fb7137f95cb77e234..6cf94fbfa9e9c4e90c0486363ca4fb0a430d7e11 100644
--- a/apm-sniffer/apm-sdk-plugin/elastic-job-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/elastic-job-2.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/elasticsearch-5.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/elasticsearch-5.x-plugin/pom.xml
index 95cedd091fe95ececeae78404945ff6a71321117..f1305946f2d535a4b869c1b481b532574d47b2c3 100644
--- a/apm-sniffer/apm-sdk-plugin/elasticsearch-5.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/elasticsearch-5.x-plugin/pom.xml
@@ -16,13 +16,11 @@
   ~ limitations under the License.
   ~
   -->
-<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>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/feign-default-http-9.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/feign-default-http-9.x-plugin/pom.xml
index b7f401dde26f3d4c7c369116981437488a5b355d..56a185dce2336acacfc645bef5b14f4f3998ba71 100644
--- a/apm-sniffer/apm-sdk-plugin/feign-default-http-9.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/feign-default-http-9.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/grpc-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/grpc-1.x-plugin/pom.xml
index 6efc106e1093ddfec093e734dbaab696e40fc699..273df498de5fc48e3beb0017a422a9d381c85dbd 100644
--- a/apm-sniffer/apm-sdk-plugin/grpc-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/grpc-1.x-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-grpc-1.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/h2-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/h2-1.x-plugin/pom.xml
index 9aa4dfa865d291ddece3b05424b2937821bbffb2..1369d9286d498ccad2ddf9b5a9d57db51660436c 100755
--- a/apm-sniffer/apm-sdk-plugin/h2-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/h2-1.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/httpClient-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/httpClient-4.x-plugin/pom.xml
index 4657f8dd84272dafe00c1fee97c0f83fa38d2f2a..6524af489334929cac0c5505e70add8dc7f72648 100644
--- a/apm-sniffer/apm-sdk-plugin/httpClient-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/httpClient-4.x-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-httpClient-4.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/httpasyncclient-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/httpasyncclient-4.x-plugin/pom.xml
index 6e006cdb1a82f91e6d5a0a92d14e6b68a26d5305..fcab9ac224f8b9950e1cae2c7c8e2658a58328bc 100644
--- a/apm-sniffer/apm-sdk-plugin/httpasyncclient-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/httpasyncclient-4.x-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-httpasyncclient-4.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/pom.xml
index d4967d72449c86537faae84ab8014442dcc21ebb..1d1b7c2c66605c1040e135854c744d287260f9f4 100644
--- a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/jdbc-commons/pom.xml b/apm-sniffer/apm-sdk-plugin/jdbc-commons/pom.xml
index 67266d617389727706736a90e885deb8c5812c34..1e9c71551c4b4625162f239dd6a3c7900115e16b 100755
--- a/apm-sniffer/apm-sdk-plugin/jdbc-commons/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jdbc-commons/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/jedis-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/jedis-2.x-plugin/pom.xml
index d2c6e80a4760cbb032ae4a76d2d74cff3a5c4974..69e64f782210bffc47d4332e56eac22a65328d71 100644
--- a/apm-sniffer/apm-sdk-plugin/jedis-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jedis-2.x-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-jedis-2.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.0-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.0-plugin/pom.xml
index 71c0a02acc327729250e00e8639d879064b66aa0..2802c1040b908302e1bf6036aedee533d5f336c4 100644
--- a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.0-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.0-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>jetty-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.x-plugin/pom.xml
index 36870b4ee0ddacd1d87f45052c1cba32585ff841..0eda3370078973a8f0b4b4499c3de8482fb27964 100644
--- a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-client-9.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>jetty-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-server-9.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-server-9.x-plugin/pom.xml
index 5a1d01155593e4db8ebb07a70923979c39cba856..5601d92cc13a8bdd8cbd30f421c5c153181f23bc 100644
--- a/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-server-9.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jetty-plugin/jetty-server-9.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>jetty-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/jetty-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/jetty-plugin/pom.xml
index cbdf65988b795f69c2cc6bc1b743b366f57b738f..78b313eeb7935bc5bd0f0421e185fca0f308fbea 100644
--- a/apm-sniffer/apm-sdk-plugin/jetty-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/jetty-plugin/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>jetty-plugins</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/kafka-v1-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/kafka-v1-plugin/pom.xml
index bcb80c7a4a9b7ad8b80eedb3e35c0e0391fbe29d..15bc114e8555e5746a52caaeb0640b03fd98a91c 100644
--- a/apm-sniffer/apm-sdk-plugin/kafka-v1-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/kafka-v1-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/pom.xml
index bf508fd582e98cd5c737a7ab3237076a27c573c8..aa8fd00ef4080a56589f617e3dfecc583f5f369a 100644
--- a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/mongodb-3.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/mongodb-3.x-plugin/pom.xml
index 8c48f748d4225a1c83adfc38133c90d714993a2d..a5757ebd4640e42a57952dd5f697d4b23c862008 100644
--- a/apm-sniffer/apm-sdk-plugin/mongodb-3.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/mongodb-3.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-mongodb-3.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/motan-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/motan-plugin/pom.xml
index c4c2e7daab08d04ba63a3e933efaeb4a6259568d..6bd1edac22fccd1fb2d2267f1ea8e744217e4549 100644
--- a/apm-sniffer/apm-sdk-plugin/motan-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/motan-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/mysql-5.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/mysql-5.x-plugin/pom.xml
index 309afd9a45d54a50aea1bc519fff1c2b173bc07b..abba6851dc956d9d8763e94a03e4b2cbf27a6ae3 100755
--- a/apm-sniffer/apm-sdk-plugin/mysql-5.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/mysql-5.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/nutz-plugins/http-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/nutz-plugins/http-1.x-plugin/pom.xml
index 1c2d5d55f95d470ba89b28c7f379fc72b51b6514..c12f44453150ed166b3778759bd6a6efc43ef391 100644
--- a/apm-sniffer/apm-sdk-plugin/nutz-plugins/http-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/nutz-plugins/http-1.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>nutz-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/nutz-plugins/mvc-annotation-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/nutz-plugins/mvc-annotation-1.x-plugin/pom.xml
index 2cd2e1cd773aa2cb1c68a681ce903362014343ab..be62e27870eab6a7389c0a20bf37fc2cca7af6b8 100644
--- a/apm-sniffer/apm-sdk-plugin/nutz-plugins/mvc-annotation-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/nutz-plugins/mvc-annotation-1.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>nutz-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/nutz-plugins/pom.xml b/apm-sniffer/apm-sdk-plugin/nutz-plugins/pom.xml
index 04c39f7d5a0c4b45161e2e8893e7e1c0fd7b2877..8fd56dffe872ecfd7c77fe3ef177b6b865ab7d70 100644
--- a/apm-sniffer/apm-sdk-plugin/nutz-plugins/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/nutz-plugins/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>nutz-plugins</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/pom.xml
index f426bcec94367ab9f9a9d09aa09ef4fdfc84ef23..4996b59ffbc4e7992887f2903b42c988d54534e9 100644
--- a/apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/pom.xml
index 2cd9013a7063b860722a33482532441960f720aa..9a9276071efc6a55e13f8e97f4b09a91be95fa8b 100644
--- a/apm-sniffer/apm-sdk-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sniffer</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-sdk-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/pom.xml
index 1b8dff661887e63e3ff6b7677a8f526744942b8c..a143fd7cfcad623dac59d2316c5347a3ed053d59 100755
--- a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/rocketMQ-3.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/rocketMQ-3.x-plugin/pom.xml
index e5492ddda910174166867fb783c65af6f13f5e0e..e05197668e0b97b57f5b630d0308bb3dbbee5ee0 100644
--- a/apm-sniffer/apm-sdk-plugin/rocketMQ-3.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/rocketMQ-3.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/rocketMQ-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/rocketMQ-4.x-plugin/pom.xml
index 8d82324521d7525fad2df28aa818c4d7f83d1532..135e90e1bbaa8f807dde8df0b516772f8c43b0a3 100644
--- a/apm-sniffer/apm-sdk-plugin/rocketMQ-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/rocketMQ-4.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/pom.xml
index 93e2a2936ff28ed5796320eb6d30d94b1f8acfe4..e17e86afb675e22d23458d70c7ecd7e5f58c4a0c 100644
--- a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-0.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-0.x-plugin/pom.xml
index d35f251142eefd959435d1248cc59d0e679bcc2b..2be5de45990a202ddfc568951dd8d56b957ba535 100644
--- a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-0.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-0.x-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>servicecomb-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-1.x-plugin/pom.xml
index 7c4322ab3b061d665bf1a27f4e73a7f5678d444d..736753e0d770661b2344beadceff571fff3f53cd 100644
--- a/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/servicecomb-plugin/servicecomb-java-chassis-1.x-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>servicecomb-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/sharding-jdbc-1.5.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/sharding-jdbc-1.5.x-plugin/pom.xml
index f41ccda353250764d59e8007db5963f71d520ea5..b87770812fd5a1caf5edcc2d583153517d7ca169 100644
--- a/apm-sniffer/apm-sdk-plugin/sharding-jdbc-1.5.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/sharding-jdbc-1.5.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/sofarpc-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/sofarpc-plugin/pom.xml
index 2222975b898196c54840154ae0a522ae4b724146..1664b16373ffe7a7eaa821d342d60cb8bb84dfa7 100644
--- a/apm-sniffer/apm-sdk-plugin/sofarpc-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/sofarpc-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/concurrent-util-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/concurrent-util-4.x-plugin/pom.xml
index 2d836b315e8b7c55e4ef0a25f9708f12fc5bbc93..cccd8857e7da75121ba37c1c3d4505810a892af1 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/concurrent-util-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/concurrent-util-4.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/core-patch/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/core-patch/pom.xml
index 7947bd6362b14b77c5dee81672f82bb1ed42bf14..f527d08337895d2c01251b2535124322bdb7beb7 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/core-patch/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/core-patch/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-3.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-3.x-plugin/pom.xml
index 766ef03e201582a0669fe7cb8b50f04ffd564eb0..5cd48c0ebcc6da5e6548054fc6d97e7091d3031e 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-3.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-3.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-4.x-plugin/pom.xml
index ba7ac3360cb806a4bfaa0b2ed3298256058bd859..b91165ce62a92eadb49ec25c4532f03d7ee1f332 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-4.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-commons/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-commons/pom.xml
index 143b425ff4cc8a9664cf5b617886e4978d52750f..8f332efb53e8a0b501004c4c2b362ee2f2d08ba1 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-commons/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/mvc-annotation-commons/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/pom.xml
index c114fcedea0e13aed13106ce3eed8163d2f7a942..dda99e6a9ecbf33396c1edc84f0ee6771ffaf204 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>spring-plugins</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/resttemplate-4.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/resttemplate-4.x-plugin/pom.xml
index 8c3218a3f5122ea869b7a29a696d35267505b14e..88bdbb4d5522bec09e8873fd41ab670f032b5cee 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/resttemplate-4.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/resttemplate-4.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/pom.xml
index 912f3e1d0b5431a6ae8b65ba0ac3c7095a496def..a03c6b854bd0d95bafe5ff3a188ecf7b9f694bee 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>spring-cloud</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>netflix-plugins</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/spring-cloud-feign-1.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/spring-cloud-feign-1.x-plugin/pom.xml
index 71e65327e30daf5c0d257353e0b133390cef56aa..5d752e544d64bd1b022eee27eb58739113d2162e 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/spring-cloud-feign-1.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/netflix-plugins/spring-cloud-feign-1.x-plugin/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>netflix-plugins</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-spring-cloud-feign-1.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/pom.xml b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/pom.xml
index 78ddb96f1c44d3257aab938dd5366f90b127236a..dce5b03b9623df161e78ec66596f4bd491c994bc 100644
--- a/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spring-plugins/spring-cloud/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>spring-plugins</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>spring-cloud</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/spymemcached-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/spymemcached-2.x-plugin/pom.xml
index 1275fe7a66fdc0094fdff6d29661d1e8819b7873..9e51a80d6baef5f166714f6093e7384b332b1c93 100644
--- a/apm-sniffer/apm-sdk-plugin/spymemcached-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/spymemcached-2.x-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-spymemcached-2.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/struts2-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/struts2-2.x-plugin/pom.xml
index 448cb90c26560aa98deab07dc55f4e5652639200..c7b3ea1efb0c721b387517da5d7947a57d7c3efb 100644
--- a/apm-sniffer/apm-sdk-plugin/struts2-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/struts2-2.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/tomcat-7.x-8.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/tomcat-7.x-8.x-plugin/pom.xml
index 1f696db1e8e45a0a64e4ef03f42185acc523dc7f..a92436b9c5e13807026c2dc1d3a25e7e77b40974 100644
--- a/apm-sniffer/apm-sdk-plugin/tomcat-7.x-8.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/tomcat-7.x-8.x-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>apm-sdk-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/undertow-plugins/pom.xml b/apm-sniffer/apm-sdk-plugin/undertow-plugins/pom.xml
index 85b33a70d6db10bb44a294bfbabcce0e7c31a6bc..0f774728443cabf65a9094cace87a38e3cfbb5b6 100644
--- a/apm-sniffer/apm-sdk-plugin/undertow-plugins/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/undertow-plugins/pom.xml
@@ -17,15 +17,13 @@
   ~
   -->
 
-<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">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>undertow-plugins</artifactId>
diff --git a/apm-sniffer/apm-sdk-plugin/undertow-plugins/undertow-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/undertow-plugins/undertow-2.x-plugin/pom.xml
index 2370a4da61662e62f852d78d400bb9304a176731..10860ae4d26ec52b0e3dd5e1b68950d1d8a0bf1c 100644
--- a/apm-sniffer/apm-sdk-plugin/undertow-plugins/undertow-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/undertow-plugins/undertow-2.x-plugin/pom.xml
@@ -16,13 +16,11 @@
   ~
   -->
 
-<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>undertow-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-sdk-plugin/xmemcached-2.x-plugin/pom.xml b/apm-sniffer/apm-sdk-plugin/xmemcached-2.x-plugin/pom.xml
index 791d7ec65cd8a0181ba17fee74c53587a76260b2..a908a969ed1b4e5a924246a75b254998db969b6f 100644
--- a/apm-sniffer/apm-sdk-plugin/xmemcached-2.x-plugin/pom.xml
+++ b/apm-sniffer/apm-sdk-plugin/xmemcached-2.x-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sdk-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-xmemcached-2.x-plugin</artifactId>
diff --git a/apm-sniffer/apm-test-tools/pom.xml b/apm-sniffer/apm-test-tools/pom.xml
index bf4eaf6f358bbc5dc2438d8d9be98ae94f65c9ab..ae4cc2c293129def710c167d7ee9ec181b0411d2 100644
--- a/apm-sniffer/apm-test-tools/pom.xml
+++ b/apm-sniffer/apm-test-tools/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>apm-sniffer</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
 
     <artifactId>apm-test-tools</artifactId>
diff --git a/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-1.x-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-1.x-activation/pom.xml
index e1dfc473d9c549b1232f60e9edd6546a3cba8e3b..941f8c80cbda0b806d037839d96b6dfcaf34d4f9 100644
--- a/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-1.x-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-1.x-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-toolkit-activation</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-2.x-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-2.x-activation/pom.xml
index 701ebd7d26baa5a54cc59d0183f3194a3d5a336e..aef3821ff3d2db48a6d7fd5cc2d1b79371e87170 100644
--- a/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-2.x-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/apm-toolkit-log4j-2.x-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-toolkit-activation</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-toolkit-activation/apm-toolkit-logback-1.x-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/apm-toolkit-logback-1.x-activation/pom.xml
index 30f0475e00f6e96261b1059274f1ea0e5c5dcae5..b00c27d31ecadca93dcfca8535f906bb02e289a6 100644
--- a/apm-sniffer/apm-toolkit-activation/apm-toolkit-logback-1.x-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/apm-toolkit-logback-1.x-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-toolkit-activation</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-toolkit-activation/apm-toolkit-opentracing-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/apm-toolkit-opentracing-activation/pom.xml
index c3fac6c841a9ef3903a344f6b7ad34c303d6e5f7..5970aae176f21112291874a654aa100d9a426252 100644
--- a/apm-sniffer/apm-toolkit-activation/apm-toolkit-opentracing-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/apm-toolkit-opentracing-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-toolkit-activation</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-toolkit-activation/apm-toolkit-trace-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/apm-toolkit-trace-activation/pom.xml
index 368664ce9c47fa25d5deee6b146cec8d59d10ad6..53d4d54f06fc47ffbd46066f76a9b50f9995e61a 100644
--- a/apm-sniffer/apm-toolkit-activation/apm-toolkit-trace-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/apm-toolkit-trace-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-toolkit-activation</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/apm-toolkit-activation/pom.xml b/apm-sniffer/apm-toolkit-activation/pom.xml
index dbde36fff543ce9a05e34f0a41f0774708689e76..c73bd942beb81f9c9ef6f5d959294f32ac9b2a49 100644
--- a/apm-sniffer/apm-toolkit-activation/pom.xml
+++ b/apm-sniffer/apm-toolkit-activation/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sniffer</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
diff --git a/apm-sniffer/optional-plugins/optional-spring-plugins/pom.xml b/apm-sniffer/optional-plugins/optional-spring-plugins/pom.xml
index 8640d285f7c690277a0061aa1a937177b4783063..ea172fb07f3c74ca4b7d2d0a2e8fbcddae5da7d0 100644
--- a/apm-sniffer/optional-plugins/optional-spring-plugins/pom.xml
+++ b/apm-sniffer/optional-plugins/optional-spring-plugins/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>optional-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
diff --git a/apm-sniffer/optional-plugins/optional-spring-plugins/spring-annotation-plugin/pom.xml b/apm-sniffer/optional-plugins/optional-spring-plugins/spring-annotation-plugin/pom.xml
index 79a4622d2058ac479ad5e3c74c27b4f29451d891..4efe3e8fe6ac107b25765acd218d39cbafe3e212 100644
--- a/apm-sniffer/optional-plugins/optional-spring-plugins/spring-annotation-plugin/pom.xml
+++ b/apm-sniffer/optional-plugins/optional-spring-plugins/spring-annotation-plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>optional-spring-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <packaging>jar</packaging>
diff --git a/apm-sniffer/optional-plugins/pom.xml b/apm-sniffer/optional-plugins/pom.xml
index 023545f24b7b883759f468251de3fafba4601843..3d71e143ff84dbaec757ee5d4bc56890bcc538be 100644
--- a/apm-sniffer/optional-plugins/pom.xml
+++ b/apm-sniffer/optional-plugins/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm-sniffer</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/optional-plugins/trace-ignore-plugin/pom.xml b/apm-sniffer/optional-plugins/trace-ignore-plugin/pom.xml
index ac0fee74ce0b650d2a55765acc32e46c8bc7b666..31c52624df6d66da325bb6878e477ad908477e6f 100644
--- a/apm-sniffer/optional-plugins/trace-ignore-plugin/pom.xml
+++ b/apm-sniffer/optional-plugins/trace-ignore-plugin/pom.xml
@@ -16,12 +16,11 @@
   ~
   -->
 
-<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>optional-plugins</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-sniffer/pom.xml b/apm-sniffer/pom.xml
index ceca9d6ee6db00022823556ff36dc25af58912b8..ec98748352e4376123c40e551ad1cda69fff03c0 100644
--- a/apm-sniffer/pom.xml
+++ b/apm-sniffer/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apm-webapp/pom.xml b/apm-webapp/pom.xml
index da9c6515618e7e1967e4894446223559a4beee15..835e24fc486f59182f866d29bd96b951f20de1fe 100644
--- a/apm-webapp/pom.xml
+++ b/apm-webapp/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/pom.xml b/oap-server/pom.xml
index a722022a419f4a639708492f9dc682a7adf46656..e051e4edf3930166a13815978860499dff2bef34 100644
--- a/oap-server/pom.xml
+++ b/oap-server/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>apm</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-alarm-plugin/pom.xml b/oap-server/server-alarm-plugin/pom.xml
index 14fea192eaccd9bdb61daddc085e3e594bdbf9ce..61b1ce406dbf86ab3dfbe2ed33664faba08a84c0 100644
--- a/oap-server/server-alarm-plugin/pom.xml
+++ b/oap-server/server-alarm-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-cluster-plugin/cluster-kubernetes-plugin/pom.xml b/oap-server/server-cluster-plugin/cluster-kubernetes-plugin/pom.xml
index 49fb18b9cb55ca1223aaa30f2d65ec4513c3d71e..3d3cb5053a6c8b8cba00e8fcb03d28785087c052 100644
--- a/oap-server/server-cluster-plugin/cluster-kubernetes-plugin/pom.xml
+++ b/oap-server/server-cluster-plugin/cluster-kubernetes-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-cluster-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-cluster-plugin/cluster-standalone-plugin/pom.xml b/oap-server/server-cluster-plugin/cluster-standalone-plugin/pom.xml
index c1269ae81408feb670f7343b044056d905a3381e..67163d78e186e9c80f6a487c6f729ff3710a759c 100644
--- a/oap-server/server-cluster-plugin/cluster-standalone-plugin/pom.xml
+++ b/oap-server/server-cluster-plugin/cluster-standalone-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-cluster-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-cluster-plugin/cluster-zookeeper-plugin/pom.xml b/oap-server/server-cluster-plugin/cluster-zookeeper-plugin/pom.xml
index 0ba6843d052f74fc28239b8b87963c961a97c4b8..9b1c7fd4bf272a3e61fccbeae2e72de02571d87f 100644
--- a/oap-server/server-cluster-plugin/cluster-zookeeper-plugin/pom.xml
+++ b/oap-server/server-cluster-plugin/cluster-zookeeper-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>
         <groupId>org.apache.skywalking</groupId>
         <artifactId>server-cluster-plugin</artifactId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-cluster-plugin/pom.xml b/oap-server/server-cluster-plugin/pom.xml
index 2e6598061791a80bfd114644faf0e1bb0a05e5c3..df9b796cd7aabdb9147ac4adc3cf8cece94cdb03 100644
--- a/oap-server/server-cluster-plugin/pom.xml
+++ b/oap-server/server-cluster-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-core/pom.xml b/oap-server/server-core/pom.xml
index b9b9154064c9e2420ba2f4cfe5399d19655c4ff3..38999425776b418edb180a70a97d98ea8416de6f 100644
--- a/oap-server/server-core/pom.xml
+++ b/oap-server/server-core/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/library-buffer/pom.xml b/oap-server/server-library/library-buffer/pom.xml
index 852e31632eb0ecd4423e64c4502fdf53f27d34b4..1070ad7376f8b1d5abfb10767d7b18d07f7d4b0b 100644
--- a/oap-server/server-library/library-buffer/pom.xml
+++ b/oap-server/server-library/library-buffer/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-library</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/library-client/pom.xml b/oap-server/server-library/library-client/pom.xml
index 26cc854b1f619fbc64347408fa586805172df929..70f8f9674122a090088e01c78c252b7570e0d59c 100644
--- a/oap-server/server-library/library-client/pom.xml
+++ b/oap-server/server-library/library-client/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-library</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/library-module/pom.xml b/oap-server/server-library/library-module/pom.xml
index 6df06f1069a8428e0d692ef2162ab3708d8d2c90..859c7944485402f01d6c5eb382b51c87d3df54e7 100644
--- a/oap-server/server-library/library-module/pom.xml
+++ b/oap-server/server-library/library-module/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-library</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/library-server/pom.xml b/oap-server/server-library/library-server/pom.xml
index da3e9d5c53b6a84e52dbb3d3bfcd5134e92128da..037e59ee3672e3cdbe0f8c19e582ed85e49e432d 100644
--- a/oap-server/server-library/library-server/pom.xml
+++ b/oap-server/server-library/library-server/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-library</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/library-util/pom.xml b/oap-server/server-library/library-util/pom.xml
index 23e80456d7de2f2d86d14922840246de9956c718..6e9112b3eb537da6aa04ed79b91d9b0ca68cf705 100644
--- a/oap-server/server-library/library-util/pom.xml
+++ b/oap-server/server-library/library-util/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-library</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-library/pom.xml b/oap-server/server-library/pom.xml
index ac79fb6d1ae829b0509fa7660c6bd686d6fe0fc7..725e806ab71d58ae14fceec2ec2ab45b2959c897 100644
--- a/oap-server/server-library/pom.xml
+++ b/oap-server/server-library/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-query-plugin/pom.xml b/oap-server/server-query-plugin/pom.xml
index 2d388c424de49279e83f1a0ba8eb539bc74f6503..954f9fbe067ae73f338924705c870d522d8dfabf 100644
--- a/oap-server/server-query-plugin/pom.xml
+++ b/oap-server/server-query-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-query-plugin/query-graphql-plugin/pom.xml b/oap-server/server-query-plugin/query-graphql-plugin/pom.xml
index e550381cb795287f2b3e6aa6dfc4a9feac4a1c04..940bac1887acb00912e5126749e2f9bf2e6cdc2a 100644
--- a/oap-server/server-query-plugin/query-graphql-plugin/pom.xml
+++ b/oap-server/server-query-plugin/query-graphql-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-query-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/pom.xml
index 0ad99c3d73580cd0be5d6eaf7b52ea3b22143a92..af684dffebcfc7133a11c6bf769752411c426705 100644
--- a/oap-server/server-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/pom.xml
index 786b6d6b8829aa99f106d7aab4158c910738cb46..1d0763103f5cd1a92e3642309ea58ca3ffdb3fc0 100644
--- a/oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/skywalking-istio-telemetry-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/pom.xml
index 05381520a509d6a9cb7f42b489e46fb2686d7b54..89a94f1e91377747ee0946078ddf460ac8e35c53 100644
--- a/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/skywalking-jvm-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/pom.xml
index 43a8351203649a9408616a8d42215ef1e8cbe100..f9ae640337289a7dcf2acdd9de900b0e91aad5de 100644
--- a/oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/skywalking-mesh-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/skywalking-register-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/skywalking-register-receiver-plugin/pom.xml
index 3277ed59e2ad1eab3b3e30eef6e8c19d0571c15d..c86418c6b45a24fc7b1bb337c4ec62ec4a6b1afa 100644
--- a/oap-server/server-receiver-plugin/skywalking-register-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/skywalking-register-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/skywalking-trace-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/skywalking-trace-receiver-plugin/pom.xml
index c32295abd29142d135fae17c0cf75c9a58c63b47..81a1bb7570139d6e21d7b67cd6ea7abf5082de41 100644
--- a/oap-server/server-receiver-plugin/skywalking-trace-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/skywalking-trace-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-receiver-plugin/zipkin-receiver-plugin/pom.xml b/oap-server/server-receiver-plugin/zipkin-receiver-plugin/pom.xml
index 8dcf89a747de9f7474e4219864af1e6b47eef3c8..1eed0f4a2c32a85c967c20a649a02f30b562c270 100644
--- a/oap-server/server-receiver-plugin/zipkin-receiver-plugin/pom.xml
+++ b/oap-server/server-receiver-plugin/zipkin-receiver-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-receiver-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-starter/pom.xml b/oap-server/server-starter/pom.xml
index 91bf853a6ae99f36f4a62a850a2f64994efcd7cd..a91a6b34bb47577e6be6954dcc1781d091f7951b 100644
--- a/oap-server/server-starter/pom.xml
+++ b/oap-server/server-starter/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-storage-plugin/pom.xml b/oap-server/server-storage-plugin/pom.xml
index 48d5ac9b4ae7c6c98d44e126347be3d0abd6f55a..6f0374754f48f894d79ccf5aaaaa235601b41f4f 100644
--- a/oap-server/server-storage-plugin/pom.xml
+++ b/oap-server/server-storage-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>oap-server</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-storage-plugin/storage-elasticsearch-plugin/pom.xml b/oap-server/server-storage-plugin/storage-elasticsearch-plugin/pom.xml
index 737e4ffbb7ebc5810ea77db7a1c1c103f9151b81..b64ba66d09db70ff410c4fa0d7b2775a5d033f78 100644
--- a/oap-server/server-storage-plugin/storage-elasticsearch-plugin/pom.xml
+++ b/oap-server/server-storage-plugin/storage-elasticsearch-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-storage-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/pom.xml b/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/pom.xml
index 523467ea5d7548fbbb59cbd9f4b4ef1de8407366..31a2ca6ec99862dd7bc48fbf25f099e66e075ca1 100644
--- a/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/pom.xml
+++ b/oap-server/server-storage-plugin/storage-jdbc-hikaricp-plugin/pom.xml
@@ -17,13 +17,11 @@
   ~
   -->
 
-<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>server-storage-plugin</artifactId>
         <groupId>org.apache.skywalking</groupId>
-        <version>6.0.0-alpha-SNAPSHOT</version>
+        <version>6.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index 8490ad6cd24278ef763c3d30aa8d37fa406f4ac1..136e48442ca7243d8c6ac4d5139173ae5c35e5e8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,13 +17,12 @@
   ~
   -->
 
-<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">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>org.apache.skywalking</groupId>
     <artifactId>apm</artifactId>
-    <version>6.0.0-alpha-SNAPSHOT</version>
+    <version>6.0.0-alpha</version>
 
     <parent>
         <groupId>org.apache</groupId>
@@ -77,7 +76,7 @@
         <url>https://github.com/apache/incubator-skywalking</url>
         <connection>scm:git:https://github.com/apache/incubator-skywalking.git</connection>
         <developerConnection>scm:git:https://github.com/apache/incubator-skywalking.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>v6.0.0-alpha</tag>
     </scm>
 
     <issueManagement>