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This documentation is for non-current versions of Pega Platform. For current release notes, go here.

Deprecation of EAR deployments in Pega Platform 8.6

Valid from Pega Version 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.

Deprecated rule typeAlternative rule typeRecommended configuration
Connect EJBConnect RESTSubstitute legacy EJB resources with a REST API, and use REST connectors to interact with them.
Connect JCAConnect RESTSubstitute legacy JCA resources with a REST API, and use REST connectors to interact with them.
JCA Resource AdapterJCA resource adapters are data records that are used within the scope of a Connect JCA rule. If you replaced Connect JCA rules in your application with Connect REST rules, JCA resource adapters are no longer relevant.No further configuration is necessary.
JMS MDB ListenerJMS ListenerReplace JMS MDB Listener configurations with standard JMS Listener configurations.
Service EJBService RESTRedefine your EJB services as a set of RESTful service APIs, and invoke them over HTTP/HTTPS.

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

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

Valid from Pega Version 8.6

Pega Infinity™ uses Hazelcast distributed clustering technology to share data and send events between server nodes. Beginning in Pega Infinity release 8.6, Pega Infinity supports Hazelcast 4.x.
 
Note: Note: Because Hazelcast 3.x is in extended support, upgrade to Hazelcast 4.x before the extended support period for Hazelcast 3.x ends.

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:

Legacy Parse XML rule configurations must be upgraded to edit them

Valid from Pega Version 8.6

If your application has Parse XML rules that use the legacy configuration from Pega Platform 5.x, you cannot edit these rules after you upgrade to Pega Platform 8.6 until after you upgrade them to use tree-based parse rule configuration.

You must upgrade a Parse XML rule that you want to edit if it shows the following warning when you open it in Dev Studio.

This type of Parse XML rule is deprecated. An upgrade should be performed.

An option to upgrade also displays below the message.

Upgrade impact

Parse XML rules with the legacy configuration do not map data to the clipboard, and the rule definition is empty. After you upgrade to Pega Platform 8.6, you cannot edit Parse XML rules that you created in Pega Platform 5.x or earlier until you upgrade them to use tree-based parse rule configuration.

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

Update legacy Parse XML rules to use tree-based parse rule configuration before you edit them in Pega Platform 8.6. Using tree-based parse rules is considered a best practice.

  1. Open the legacy Parse XML rule.
  2. On the Mapping tab, click Upgrade.
    Result: The Allow tree editing? check box is displayed and is automatically selected. You can add attributes and elements to the tree structure, or delete them.
  3. Save the upgraded rule configuration.

For more information, see Parse XML rules.

Connect MQ rules configured with alias queue do not work after upgrade

Valid from Pega Version 8.6

Connect MQ rules that you defined with an alias queue in earlier versions of Pega Platform do not work after an upgrade to Pega Platform 8.6.

Upgrade impact

If you defined an alias queue in Connect MQ rules, after an upgrade to Pega Platform 8.6, those Connect MQ rules do not work.

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

In the Pega-IntegrationEngine ruleset, create the following dynamic system settings and their default values:

  • "mq/pmo" = 0
  • "mq/gmo" = 0
  • "mq/oo_request" = 1040
  • "mq/oo_response" = 16

For more information, see Creating a dynamic system setting.

Improved indexing of StringList and StringGroup property types

Valid from Pega Version 8.6

Search and Reporting Service in Pega Platform™ 8.5 may improperly index StringList and StringGroup property types. As a result, the data model does not include the affected properties.

Upgrade impact

After upgrading to Pega Platform version 8.6, the system requires that the classes with the StringList or StringGroup type are reindexed. 

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

On the Search Landing Page, manually reindex all the classes that include properties with the StringList or StringGroup types to ensure that all your data is present in the data model. Alternatively, if finding specific instances of classes is difficult, you can reindex all classes in your application.

For more information, see Indexing class data.

 

Rules Assembly cache is deprecated

Valid from Pega Version 7.3.1

Rules Assembly (RA) cache and custom settings for its corresponding fua/assemblyCacheModeprconfig.xml file setting are deprecated because they are obsolete. A warning is logged at startup if a custom (non-default) value is specified for fua/assemblyCacheMode in the prconfig.xml file. The functional behavior of the system is not affected.

Use of PegaRULES_Extract_Marker.txt to delete cache is deprecated

Valid from Pega Version 7.3.1

The PegaRULES_Extract_Marker.txt file is deprecated. The system uses the presence or absence of the PegaRULES_Extract_Market.txt file to determine at startup whether to delete the static content, service export, and lookup list file system-based caches. In the rare situation that you need to delete these caches manually, use the System Management Application (SMA) ETier Static Content Management page. Using SMA does not require restarting the node.

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