The following is a list of manual steps that have to be carried out when upgrading from a 2.0.Beta version to 2.0.CR1 or 2.0.Final:

• Starting with 2.0.CR1 the default for automatic service discovery has been changed in favour of CDI based applications. That means it has to be explicitly turned on for plain bus applications (Errai applications that do not use Errai-CDI). Not doing so will result in NoSubscribersToDeliverTo exceptions. The snippet below shows how to activate automatic service discovery:

  web.xml

  <servlet>
    <servlet-name>ErraiServlet</servlet-name>
    <servlet-class>org.jboss.errai.bus.server.servlet.DefaultBlockingServlet</servlet-class>
    <init-param>
      <param-name>auto-discover-services</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

• The jboss7-support module was deleted and is no longer needed as a dependency.