The following chapters describe the various things to know when migrating from version 20.x of i-net Clear Reports to version 21.x. If you migrate from older versions of i-net Clear Reports, then you should also read the other migration information depending on the version that you migrate from.
The initialization for WebSocketEndPoint to be registerable in Oracle Weblogic was changed in version 21.10. This fixed the error `java.lang.IllegalStateException: Not in 'deploy' scope.`.
If you use an web.xml file of another WAR file you need to add the listener com.inet.http.ExpandableServletContextListener
