To upgrade a WebLogic Server domain, follow the procedure below: 
    
      - Select File >  New > Server. 
 
      - Select the desired server type and server
          runtime and click Next. 
 
      - Click the Browse button and locate the domain directory that you
        wish to upgrade. 
 
      - Click
        the link An
          older version domain is detected. Click here to upgrade it with Upgrade
      Wizard
      
      
 
      - Complete the upgrade wizard as directed. 
 
    
    Note that  you can invoke the domain upgrade wizard in the following
      alternative ways: 
    
      - Select Start > Programs > Oracle
        WebLogic > WebLogic Server 10.3 >   Tools > Domain
          Upgrade Wizard.
 
      - Run BEA_HOME\wlserver_10.3\common\bin\upgrade.cmd.
 
    
    However, if you invoke the domain upgrade wizard independently of Workshop,
      you must create a new server definition for the upgraded domain. To create
      a new server definition, select File > New > Server and
      point to your newly upgraded domain. 
    Related Topics
    Procedure for Upgrading a WebLogic Platform
    Domain
    Domain Upgrade Guide