Start the new release's WLM administrative application, and enter your service definition.
If you want to keep the previous release's WLM application, each version of the application must have unique library names. So, when you install the new release, make sure you keep the previous release application on the system under a unique name. You can rename your libraries by using an exit as described in Customizing the WLM ISPF application.
When you enter the service definition, you can keep the service definition in an MVS™ partitioned data set until you are ready to install the service definition into the WLM couple data set. If you are migrating to use a new version of the WLM application, always save the partitioned data set created by the previous version of the application for backup purposes.