Update project version for 0.3.0-SNAPSHOT development

Signed-off-by: kakulisen <18813972746@163.com>
diff --git a/README-ZH.md b/README-ZH.md
index 3bb2f4c..198b511 100644
--- a/README-ZH.md
+++ b/README-ZH.md
@@ -97,7 +97,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>code</sourceType>
@@ -160,7 +160,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>code</sourceType>
@@ -194,7 +194,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>contract</sourceType>
@@ -224,7 +224,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>code</sourceType>
diff --git a/README.md b/README.md
index 51e8011..3a5e176 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>code</sourceType>
@@ -153,7 +153,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>code</sourceType>
@@ -188,7 +188,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>contract</sourceType>
@@ -219,7 +219,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>code</sourceType>
diff --git a/cli/pom.xml b/cli/pom.xml
index 3e4131d..590052e 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/codegen/pom.xml b/codegen/pom.xml
index 22e8354..da1c15f 100644
--- a/codegen/pom.xml
+++ b/codegen/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/common/pom.xml b/common/pom.xml
index 89f5c37..480d765 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/contractgen/pom.xml b/contractgen/pom.xml
index 19ba9f3..59dc93b 100644
--- a/contractgen/pom.xml
+++ b/contractgen/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/contractgen/src/test/projects/demo/pom.xml b/contractgen/src/test/projects/demo/pom.xml
index d55c434..7efbf1b 100644
--- a/contractgen/src/test/projects/demo/pom.xml
+++ b/contractgen/src/test/projects/demo/pom.xml
@@ -21,7 +21,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.servicecomb.toolkit</groupId>
   <artifactId>demo</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <name>demo-contractgen-test</name>
   <packaging>jar</packaging>
 
diff --git a/core/pom.xml b/core/pom.xml
index 336d2bb..f4048ae 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/docgen/pom.xml b/docgen/pom.xml
index a05a1e7..b91563e 100644
--- a/docgen/pom.xml
+++ b/docgen/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/coverage-aggregate/pom.xml b/integration-tests/coverage-aggregate/pom.xml
index 9a2f9f7..c4a9c43 100644
--- a/integration-tests/coverage-aggregate/pom.xml
+++ b/integration-tests/coverage-aggregate/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index 966eb4a..18e1d72 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/oas-generator/oas-generator-core/pom.xml b/oas-generator/oas-generator-core/pom.xml
index 1accd5e..f84fa23 100644
--- a/oas-generator/oas-generator-core/pom.xml
+++ b/oas-generator/oas-generator-core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>oas-generator</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/oas-generator/oas-generator-jaxrs/pom.xml b/oas-generator/oas-generator-jaxrs/pom.xml
index af72216..28484e1 100644
--- a/oas-generator/oas-generator-jaxrs/pom.xml
+++ b/oas-generator/oas-generator-jaxrs/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>oas-generator</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/oas-generator/oas-generator-servicecomb/pom.xml b/oas-generator/oas-generator-servicecomb/pom.xml
index e80c2fd..c2bad98 100644
--- a/oas-generator/oas-generator-servicecomb/pom.xml
+++ b/oas-generator/oas-generator-servicecomb/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>oas-generator</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/oas-generator/oas-generator-spring/pom.xml b/oas-generator/oas-generator-spring/pom.xml
index 318c412..2c5b29a 100644
--- a/oas-generator/oas-generator-spring/pom.xml
+++ b/oas-generator/oas-generator-spring/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>oas-generator</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/oas-generator/pom.xml b/oas-generator/pom.xml
index db974a1..b226995 100644
--- a/oas-generator/pom.xml
+++ b/oas-generator/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <packaging>pom</packaging>
diff --git a/oas-validator/oas-validator-compatibility-spring/pom.xml b/oas-validator/oas-validator-compatibility-spring/pom.xml
index c0c2833..4f6de9f 100644
--- a/oas-validator/oas-validator-compatibility-spring/pom.xml
+++ b/oas-validator/oas-validator-compatibility-spring/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-compatibility/pom.xml b/oas-validator/oas-validator-compatibility/pom.xml
index a62883e..fdbd08b 100644
--- a/oas-validator/oas-validator-compatibility/pom.xml
+++ b/oas-validator/oas-validator-compatibility/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-core-spring/pom.xml b/oas-validator/oas-validator-core-spring/pom.xml
index 9ad973f..b0236f2 100644
--- a/oas-validator/oas-validator-core-spring/pom.xml
+++ b/oas-validator/oas-validator-core-spring/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-core/pom.xml b/oas-validator/oas-validator-core/pom.xml
index a7801c1..604fc12 100644
--- a/oas-validator/oas-validator-core/pom.xml
+++ b/oas-validator/oas-validator-core/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-style/pom.xml b/oas-validator/oas-validator-style/pom.xml
index 66d9a3d..0e179bc 100644
--- a/oas-validator/oas-validator-style/pom.xml
+++ b/oas-validator/oas-validator-style/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-test/pom.xml b/oas-validator/oas-validator-test/pom.xml
index 69e6929..ec6de2d 100644
--- a/oas-validator/oas-validator-test/pom.xml
+++ b/oas-validator/oas-validator-test/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/oas-validator-web/pom.xml b/oas-validator/oas-validator-web/pom.xml
index e54d808..fa99ef4 100644
--- a/oas-validator/oas-validator-web/pom.xml
+++ b/oas-validator/oas-validator-web/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>oas-validator-parent</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/oas-validator/pom.xml b/oas-validator/pom.xml
index 494766a..5740a24 100644
--- a/oas-validator/pom.xml
+++ b/oas-validator/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index 9c86a97..e6666a0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.servicecomb.toolkit</groupId>
   <artifactId>toolkit</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Apache ServiceComb Toolkit</name>
diff --git a/samples/generate-from-code-sample/GoodbyeService/pom.xml b/samples/generate-from-code-sample/GoodbyeService/pom.xml
index 22bff37..165a7a7 100644
--- a/samples/generate-from-code-sample/GoodbyeService/pom.xml
+++ b/samples/generate-from-code-sample/GoodbyeService/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>generate-from-code-sample</artifactId>
     <groupId>org.apache.servicecom.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/samples/generate-from-code-sample/HelloService/pom.xml b/samples/generate-from-code-sample/HelloService/pom.xml
index e887437..a260cf1 100644
--- a/samples/generate-from-code-sample/HelloService/pom.xml
+++ b/samples/generate-from-code-sample/HelloService/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>generate-from-code-sample</artifactId>
     <groupId>org.apache.servicecom.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/samples/generate-from-code-sample/README-ZH.md b/samples/generate-from-code-sample/README-ZH.md
index e06c5a8..e758f2b 100755
--- a/samples/generate-from-code-sample/README-ZH.md
+++ b/samples/generate-from-code-sample/README-ZH.md
@@ -15,7 +15,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>code</sourceType>
diff --git a/samples/generate-from-code-sample/README.md b/samples/generate-from-code-sample/README.md
index 68516a2..f1f9a41 100755
--- a/samples/generate-from-code-sample/README.md
+++ b/samples/generate-from-code-sample/README.md
@@ -16,7 +16,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>code</sourceType>
diff --git a/samples/generate-from-code-sample/pom.xml b/samples/generate-from-code-sample/pom.xml
index d6a7119..f9c7782 100644
--- a/samples/generate-from-code-sample/pom.xml
+++ b/samples/generate-from-code-sample/pom.xml
@@ -23,7 +23,7 @@
 
   <groupId>org.apache.servicecom.toolkit</groupId>
   <artifactId>generate-from-code-sample</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <modules>
     <module>HelloService</module>
     <module>GoodbyeService</module>
@@ -36,7 +36,7 @@
       <plugin>
         <groupId>org.apache.servicecomb.toolkit</groupId>
         <artifactId>toolkit-maven-plugin</artifactId>
-        <version>0.2.0</version>
+        <version>0.3.0-SNAPSHOT</version>
         <configuration>
           <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
           <sourceType>code</sourceType>
diff --git a/samples/generate-from-contract-sample/README-ZH.md b/samples/generate-from-contract-sample/README-ZH.md
index 887ea9c..e7d193b 100755
--- a/samples/generate-from-contract-sample/README-ZH.md
+++ b/samples/generate-from-contract-sample/README-ZH.md
@@ -12,7 +12,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>contract</sourceType>
diff --git a/samples/generate-from-contract-sample/README.md b/samples/generate-from-contract-sample/README.md
index 9274621..56eb220 100755
--- a/samples/generate-from-contract-sample/README.md
+++ b/samples/generate-from-contract-sample/README.md
@@ -13,7 +13,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>contract</sourceType>
diff --git a/samples/generate-from-contract-sample/pom.xml b/samples/generate-from-contract-sample/pom.xml
index b36ae38..041c0b5 100644
--- a/samples/generate-from-contract-sample/pom.xml
+++ b/samples/generate-from-contract-sample/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>samples</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <packaging>pom</packaging>
@@ -34,7 +34,7 @@
       <plugin>
         <groupId>org.apache.servicecomb.toolkit</groupId>
         <artifactId>toolkit-maven-plugin</artifactId>
-        <version>0.2.0</version>
+        <version>0.3.0-SNAPSHOT</version>
         <configuration>
           <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
           <sourceType>contract</sourceType>
diff --git a/samples/pom.xml b/samples/pom.xml
index 25f0375..377db6b 100644
--- a/samples/pom.xml
+++ b/samples/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>samples</artifactId>
diff --git a/samples/verify-with-code-sample/GreetingService/pom.xml b/samples/verify-with-code-sample/GreetingService/pom.xml
index 2fe4767..5b2951b 100644
--- a/samples/verify-with-code-sample/GreetingService/pom.xml
+++ b/samples/verify-with-code-sample/GreetingService/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>verify-with-code-sample</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/samples/verify-with-code-sample/README-ZH.md b/samples/verify-with-code-sample/README-ZH.md
index 85fe7ad..0090331 100755
--- a/samples/verify-with-code-sample/README-ZH.md
+++ b/samples/verify-with-code-sample/README-ZH.md
@@ -13,7 +13,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- 输入源。设置为 code,表示解析当前代码;设置为 contract,表示解析指定目录的契约文件。不设置则默认为 code -->
         <sourceType>code</sourceType>
diff --git a/samples/verify-with-code-sample/README.md b/samples/verify-with-code-sample/README.md
index 2362205..585103a 100755
--- a/samples/verify-with-code-sample/README.md
+++ b/samples/verify-with-code-sample/README.md
@@ -13,7 +13,7 @@
 <plugin>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit-maven-plugin</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
     <configuration>
         <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
         <sourceType>code</sourceType>
diff --git a/samples/verify-with-code-sample/pom.xml b/samples/verify-with-code-sample/pom.xml
index 60f17b0..845c523 100644
--- a/samples/verify-with-code-sample/pom.xml
+++ b/samples/verify-with-code-sample/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>samples</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -37,7 +37,7 @@
       <plugin>
         <groupId>org.apache.servicecomb.toolkit</groupId>
         <artifactId>toolkit-maven-plugin</artifactId>
-        <version>0.2.0</version>
+        <version>0.3.0-SNAPSHOT</version>
         <configuration>
           <!-- Set to 'code' to resolve the current project. Set to 'contract' to resolve the contract file for the specified path.If not set, the default is 'code' -->
           <sourceType>code</sourceType>
diff --git a/toolkit-distribution/pom.xml b/toolkit-distribution/pom.xml
index 958b33c..de42ed7 100644
--- a/toolkit-distribution/pom.xml
+++ b/toolkit-distribution/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>toolkit</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <artifactId>apache-servicecomb-toolkit-distribution</artifactId>
   <name>Toolkit::Distribution</name>
diff --git a/toolkit-maven-plugin/pom.xml b/toolkit-maven-plugin/pom.xml
index 9f76711..4204885 100644
--- a/toolkit-maven-plugin/pom.xml
+++ b/toolkit-maven-plugin/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>toolkit</artifactId>
     <groupId>org.apache.servicecomb.toolkit</groupId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <packaging>maven-plugin</packaging>
diff --git a/toolkit-maven-plugin/src/test/projects/demo-multi-module/first-module/pom.xml b/toolkit-maven-plugin/src/test/projects/demo-multi-module/first-module/pom.xml
index cb48a7d..e8181ea 100644
--- a/toolkit-maven-plugin/src/test/projects/demo-multi-module/first-module/pom.xml
+++ b/toolkit-maven-plugin/src/test/projects/demo-multi-module/first-module/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.toolkit</groupId>
     <artifactId>demo-multi-module</artifactId>
-    <version>0.2.0</version>
+    <version>0.3.0-SNAPSHOT</version>
   </parent>
   <artifactId>first-module</artifactId>
 </project>
\ No newline at end of file
diff --git a/toolkit-maven-plugin/src/test/projects/demo-multi-module/pom.xml b/toolkit-maven-plugin/src/test/projects/demo-multi-module/pom.xml
index 3367918..3aa6563 100644
--- a/toolkit-maven-plugin/src/test/projects/demo-multi-module/pom.xml
+++ b/toolkit-maven-plugin/src/test/projects/demo-multi-module/pom.xml
@@ -21,7 +21,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.servicecomb.toolkit</groupId>
   <artifactId>demo-multi-module</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <name>demo-multi-module-test</name>
   <packaging>pom</packaging>
 
diff --git a/toolkit-maven-plugin/src/test/projects/demo-with-contract/pom.xml b/toolkit-maven-plugin/src/test/projects/demo-with-contract/pom.xml
index f4d456c..40e910f 100644
--- a/toolkit-maven-plugin/src/test/projects/demo-with-contract/pom.xml
+++ b/toolkit-maven-plugin/src/test/projects/demo-with-contract/pom.xml
@@ -21,7 +21,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.servicecomb.toolkit</groupId>
   <artifactId>demo-with-contract</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <name>demo-with-contract-test</name>
   <packaging>jar</packaging>
 
diff --git a/toolkit-maven-plugin/src/test/projects/demo-without-contract/pom.xml b/toolkit-maven-plugin/src/test/projects/demo-without-contract/pom.xml
index f042b8e..46308c1 100644
--- a/toolkit-maven-plugin/src/test/projects/demo-without-contract/pom.xml
+++ b/toolkit-maven-plugin/src/test/projects/demo-without-contract/pom.xml
@@ -21,7 +21,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.servicecomb.toolkit</groupId>
   <artifactId>demo-without-contract</artifactId>
-  <version>0.2.0</version>
+  <version>0.3.0-SNAPSHOT</version>
   <name>demo-without-contract-test</name>
   <packaging>jar</packaging>