release 2.0.0.0-RC4. (#570)

Author: shedfreewu

pom.xml

@@ -66,7 +66,7 @@
 
     <properties>
         <!-- Project revision -->
-        <revision>2.0.0.0-SNAPSHOT</revision>
+        <revision>2.0.0.0-RC4</revision>
 
         <timestamp>${maven.build.timestamp}</timestamp>
         <skip.maven.deploy>false</skip.maven.deploy>
@@ -77,7 +77,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <jackson.version>2.14.2</jackson.version>
-        <specification.version>1.5.4-SNAPSHOT</specification.version>
+        <specification.version>1.5.4</specification.version>
         <consul.version>1.4.5</consul.version>
         <gson.version>2.9.1</gson.version>
         <nacos.version>2.1.1</nacos.version>