Published Release Notes

REST APIs for cache management and requestor pools management

You can manage various caches in Pega^® Platform, for example, the clean cache or the repopulate cache, or you can get cache statistics for the authenticated user by using the new Caches REST APIs. You can manage requestor pools, for example, clear a requestor pool, by using the new Pools REST APIs. These APIs allow external systems to consume and manage Pega resources.

The new REST APIs are for Conclusions Cache, Declarative Page Cache, Declarative Rules Cache, Rule Cache, Application-Based Assembly (ABA) Cache, and Requestor Pool Management.

For more information, see Pega API for Pega Platform 7.4 and Pega API.

REST APIs for viewing Pega Platform configuration settings

New REST APIs in the Nodes category provide a view of the current configuration settings for any node in a cluster or for an entire cluster. You can also find a specific node ID by listing all the nodes in the cluster. To diagnose settings issues for a node, you can download the prconfig.xml file.

For more information, see Pega API for Pega Platform 7.4, Pega API, and Viewing the current configuration settings for a node or the whole cluster.

Saving data without using an activity

You can now define data pages to persist data to a system of record. Savable data pages provide a simple way to save data pages without needing to configure an activity. List savable data pages on a flow action to provide users with the ability to update values and save the changes with a savable data page. Use a Save Data Page smart shape to save data as a part of case processing.

For more information, see Creating a data page to save data.

Improved connection pooling performance

HikariCP is now used for connection pooling for databases that are configured by using a URL. HikariCP improves connection pooling performance; however, more database connections might be used than in previous versions of Pega^® Platform.

As a result of the switch to HikariCP, you cannot use the System Management Application (SMA) to get diagnostic data from your application. For instructions about how to get diagnostic data by using REST services, see Obtaining connection pool diagnostic data by using REST services.

No longer supported translator configuration options

The following translator configuration options are not needed and are no longer supported. If you previously configured any of these system settings, remove them from the system settings to avoid a warning message. For example, if you set translator/useparserfamily, the following message is displayed at startup: "Translator option, 'translator/useparserfamily' is not needed and no longer supported. Remove this from the system settings."

• translator/useparserfamily
• translator/usecodegenerator
• translator/usenativedouble
• translator/optimization/use71BlockAnalysis
• translator/optimization/use71ConstantFolding
• translator/optimization/use71AssignmentTypeSimplification
• translator/optimization/use71IntrinsicFunctions
• translator/use71PropSetGeneration
• translator/use71ParserAssignment
• assembly/model/useBlock4ContiguousSets
• /translator/pandc/comparepandcalgorithms
• /translator/pandc/use6xalgorithms
• /Compatibility/CheckForTopLevelClassMismatch

In addition, the com.pega.pegarules.generation.parseoverride bootstrap option is no longer supported. Remove this option from the system settings.

New alert for distinct values query

The PEGA0093 alert identifies performance issues when a distinct values query from virtual reports or the getDistinctValuesForProperty API take longer than the threshold. For more information, see PEGA0093: Distinct values query took more than the threshold.

Aggregating and browsing Visual Business Director data set

Visual Business Director (VBD) data set has been enhanced to support the Aggregate and Browse operations. Aggregating aids testing your data in Pega^® Visual Business Director. Browsing the content of the Visual Business Director data set provides transparency and helps to troubleshoot issues that are related to Pega Visual Business Director. You can use the new operations from the DataSet-Execute method or by clicking Actions > Run in the Visual Business Director data set form.

For more information see Creating a Visual Business Director data set record and Configuring the DataSet-Execute method for Visual Business Director.

System state data is saved for 90 days

System state data is now saved to the database for 90 days and can be downloaded as a JSON file. Having previous system state data available is useful for debugging system problems. Operators with the pzSystemOperationsObserver privilege can download system state data from the Cluster Management landing page for either the entire cluster or a single node. In addition, the PersistClusterState and PersistNodeState agents have been added to the Pega-RulesEngine ruleset for persisting system state data to the database.

For more information, see Downloading the system state.

getRuleMessage APIs no longer prepend asterisks

The Public APIs getRuleMessage(String aMsgDescr) and getRuleMessage(String aMsgDescr,String messageClass) no longer prepend asterisks ("**") to the message description when they fail to find a Rule-Message instance whose name matches the input message description. For information about these APIs, access the Public API documentation in Designer Studio by clicking Resources > Engine API.

Support for large case attachments

You can now attach large files to a case on a variety of cloud storage options, including Pega Cloud File Storage, Amazon S3, Microsoft Azure, and JFrog Artifactory. Files can be 1 to 2 GB depending on your environment configuration. Attachments are streamed to the selected storage option without being loaded into memory, which reduces the risk of generating an out-of-memory error. Additionally, all cloud instances now have the new Pega Cloud File Storage repository defined.

For more information, see Storing case attachments outside the Pega Platform database.