Published Release Notes

Deprecation of EAR deployments in Pega Platform 8.6

Starting with Pega Platform 8.6, EAR deployments of Pega Platform are deprecated. In the upcoming 8.7 release, EAR deployments will not be supported. The following rules that require EAR deployments will also be deprecated and no longer supported in Pega Platform 8.7:

• Connect EJB
• Connect JCA
• JCA Resource Adapter
• JMS MDB Listener
• Service EJB

With this deprecation, you can use the latest tools and keep your application up to date. 

Upgrade impact

In Pega Platform 8.6, you can still create rules that require EAR deployments and update existing rules. However, after an upgrade to Pega Platform 8.7, rules that require EAR deployments are no longer supported.

What steps are required to update an application to be compatible with this change?

To prepare your application for this change well in advance of the Pega Platform 8.7 release, see the following table for a list of alternative rules and for guidance on modernizing your application.

For information on the supported platforms that are affected by this deprecation, see Pega Platform 8.6 Support Guide.

Deprecated support for Pega Platform deployments on embedded Cassandra

If you use Pega Platform™ decision management capabilities, Pega Platform uses Cassandra as the underlying storage system for the Decision Data Store (DDS), which manages the Cassandra cluster and stores decision management data in a Cassandra database. Future versions of Pega Platform will no longer support deployments on embedded Cassandra. In Pega Platform version 8.6, deployments using embedded Cassandra are deprecated but still work. To ensure future compatibility, do not create any new installations using embedded Cassandra.

For information about how to configure Pega Platform to access an external database, see Defining Pega Platform access to an external Cassandra database.

Virtual questions deprecated in 8.6

Following the improvements in Pega Intelligent Virtual Assistant (IVA), the creation of virtual questions is now deprecated and planned for removal. To avoid additional effort during updates to future releases, do not use deprecated features. For optimal application performance and efficient development of conversation processes, you now collect information from users by using the Ask a question smart shape.

For more information, see Adding a case type conversation process for a conversational channel and Asking a question in a case.

Loading cues in Pega Platform

Pega Platform™ applications that rely on the Cosmos React framework now feature a visual placeholder for the page that is being loaded. The system displays an indicator when loading portals, cases, simple pages, and list pages. This update provides users with a visual cue that their request is being processed, which improves the user experience.

Upgrading to Hazelcast 4.x requires downtime during upgrades to Pega Infinity 8.6

Upgrade impact statement

On-premises upgrades of Pega Infinity release 8.4.2 and later to version 8.5.1 or later on Tomcat and PostgreSQL are completed with near-zero downtime. However, upgrading to Hazelcast 4.x requires that you shut down and restart your application server.

What is required to update the application to be compatible with this change?

Hazelcast 3.x is enabled by default. For near-zero downtime upgrades, you do not need to perform any action.

For instructions about upgrading to Hazelcast 4.x, see one of the following topics:

• For near-zero downtime upgrades from Pega Infinity release 8.4.2 or later on Tomcat and PostgreSQL, see "Optional: upgrading to Pega Platform version 8.6: Upgrading to Hazelcast 4.x" in Near-zero downtime Upgrade Guide for Pega Platform version 8.4.2 and later for Tomcat and PostgreSQL.
• For all other upgrades, see "Optional: upgrading to Hazelcast 4.x" in the appropriate upgrade guide.

End of active support for Cosmos React version 8.6

As of the release of Pega Platform™ version 8.8 in October 2022, the early adopter Cosmos React (now Constellation) UI is no longer supported. Consequently, Pega support teams no longer accept assignments and incident reports for the 8.6 version of Cosmos React and DX SDK. Upgrade to a later version of Cosmos React or Constellation to maintain support.

Upgraded selected third-party JAR files to support Pega Platform functionalities

Pega Platform™ 8.6 now provides upgraded versions of the JAR files that support various functionalities within the Platform, such as generating documents or PPTX files.

Upgrade impact

If you have custom implementations and use any classes from the upgraded JAR files directly in your code or through JAR APIs, after your upgrade to Pega Platform 8.6, your application might experience unexpected run-time behavior if the upgraded JAR version lacks any elements from the previous version. For example, custom implementations can typically include activities, functions, or non-autogenerated sections. Unexpected run-time behavior might also occur when you use a third-party library that has dependencies on the upgraded JAR files. If you use only default Pega Platform functionalities without any customizations, the JAR files continue to work correctly without any additional actions.

What steps are required to update the application to be compatible with this change?

If you have any JAR customizations, ensure that you test the upgraded JAR files for compatibility and upgrade impact. The following table lists the upgraded JAR files that might impact your application:

For more information, refer to the documentation of  your JAR provider.

Enhanced PEGA0104 alert

The PEGA0104 alert now includes the thread pool size, a list of activities that are waiting in the queue for a thread to become available, and details on how long it took to capture the thread dump.  By default, the alert also includes the thread dump.  You can disable the inclusion of the thread dump by changing the related configuration option. 

For more information, see PEGA0104 alert: Background tasks have exceeded a threshold time when attempting to acquire a thread from pool or executor.

App Studio enhancements further support Pega Express methodology

App Studio now includes improvements that you can use to plan your Microjourney™ in a more convenient way. The Overview workspace now includes a button to edit application details, such as name, description, and business objectives, without having to switch to Dev Studio. You can also access relevant information faster, because Case Designer displays additional details about channels, data objects, and attachments associated with a case type directly in a properties pane. For improved management of your features, feature categories are now available in the application inventory so that you can clearly communicate to your development team what type of features need implementation.

For more information, see:

• Editing application details in App Studio 
• Associating personas with channels 
• Adding features to application inventory 
• Creating a Microjourney for customer success

Extended support for Cosmos React tables in Pega Infinity applications

Cosmos React tables are now available to Pega Infinity™ pages. Previously, when you enabled Cosmos React UI for landing pages in your application, you could add the React-based tables only to landing pages. With this enhancement, you can also embed tables in a section that is part of your case view or dashboard page.

For more information, see Adding a React table to a section.