private void updateVersion(){
  prop.put("version." + oldVersion,"UPDATE_NEEDED");
  prop.put("version." + newVersion,"CURRENT");
  prop.put("version.destination." + oldVersion,newVersion);
}

private void updateVersion ( ) { prop . put ( "version." + oldVersion , "UPDATE_NEEDED" ) ; prop . put ( "version." + newVersion , "CURRENT" ) ; prop . put ( "version.destination." + oldVersion , newVersion ) ; }
updates the version number .
