update a new version. version name:GreatVoyage-v4.2.0-8-g5aa864983,version code:15520

Author: zhang0125

framework/src/main/java/org/tron/program/Version.java

@@ -2,8 +2,8 @@
 
 public class Version {
 
-  public static final String VERSION_NAME = "GreatVoyage-v4.1.3-199-gc433410f8";
-  public static final String VERSION_CODE = "15510";
+  public static final String VERSION_NAME = "GreatVoyage-v4.2.0-8-g5aa864983";
+  public static final String VERSION_CODE = "15520";
   private static final String VERSION = "4.2.1";
 
   public static String getVersion() {