Customizations to the prlogging.xml file must be manually ported after upgrade
Valid from Pega Version 7.3
As a result of the upgrade from the Apache Log4j 1 logging service to the Apache Log4j 2 logging service, the name of the logging configuration file has changed from prlogging.xml to prlog4j2.xml and the format of the file has changed considerably. If you customized your prlogging.xml file, port the customizations to the new prlog4j2.xml file. If you do not port the changes, the Pega® Platform uses the default prlog4j2.xml file and disregards your customized prlogging.xml file.
For more information about customizing your log files, see the Apache Log4j 2 documentation.
Socket server has changed for remote logging
Valid from Pega Version 7.3
As a result of the upgrade from the Apache Log4j 1 logging service to the Apache Log4j 2 logging service, the socket server that is used for remote logging has changed from the Log4j remote logging package with the LogFactor5 log analysis tool to TcpSocketServer. If you use remote logging, update your socket server to TcpSocketServer. For more information, see Installing and using remote logging.
Log file description in web.xml incorrect after upgrade to Apache Log4j 2
Valid from Pega Version 7.3
As a result of the upgrade from the Apache Log4j 1 logging service to the Apache Log4j 2 logging service, it is recommended that you update the log file description in the web.xml file from location of prlogging.xml file to location of prlog4j2.xml file. The description indicates which log file is in use. Updating the description avoids confusion about which log file is current. Change the description as shown in the following example.
<resource-ref id="ResourceRef_5">
<description>location of prlog4j2.xml file</description>
<res-ref-name>url/pegarules.logging.configuration</res-ref-name>
<res-type>java.net.URL</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
Support for character data type on local variables in activities deprecated
Valid from Pega Version 8.1
Support for the character data type for local variables in activities is deprecated. Use the string data type instead.
For more information about activities, see Activities.
When rule might not resolve against @baseclass
Valid from Pega Version 8.1
In the rare case in which a step page context is null, or the pxObjClass associated with the step page is empty, the system no longer attempts to resolve the when rule against @baseclass. As a result, you might see more rule not found errors. Check the step page context and class and ensure that they are not null or empty. In all other cases, if a when rule is not found in any other part of the class hierarchy, the system attempts to resolve it against @baseclass.
Failed Robotic Assignments work queue type changed to Standard
Valid from Pega Version 8.5
The default Failed Robotic Assignments work queue type is now Standard. In previous releases, the default type was Robotic. For usage information, see Configuring a work queue for robotic automation.
Upgrade impact
After upgrading to Pega Platform 8.5 and later, you cannot save case types in which you configure the Queue for robot smart shape to route new assignments to the Failed Robotic Assignments work queue. Existing assignments that you routed to the Failed Robotic Assignments work queue are not affected.
How do I update my application to be compatible with this change?
As a best practice, do not use the Failed Robotic Assignments work queue in your custom implementations. Instead, configure the Queue for robot smart shape to route new assignments to a Robotic work queue. When possible, update existing case types to use the robotic work queues that you created in your application.