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Published Release Notes

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Browse resolved issues for Platform releases.

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

Use Page-Change-Class method to change a Page class

Valid from Pega Version 8.3

With the release of Pega Platform™ 8.3, using the Property-Set method to change the Page class shows a guardrail warning. Use the Page-Change-Class method to change the Page class instead.

For more information about the Page-Change-Class method, see Changing the class of a page and Page-Change-Class method.

Simple associations for quickly joining classes

Valid from Pega Version 8.3

Associations now have a simple mode. Use a simple association to quickly and easily join a class to another class. The simple association defines a left join, using a foreign key in the source class and the class key in the target class. Use an advanced association for all other conditions. In addition, simple associations are drawn in the Visual data model reporting mode to visualize the relationships that are available for reporting.

Upgrade impact

The new simple mode draws a map of where all the classes defined in the application rule are drawn as nodes. Relationships between the nodes that are defined by relevant properties are drawn as lines linking the two classes. This feature only includes Case and Data classes that are defined on the Application rule form's Cases and Data tab. It also only includes relevant fields for those classes in order to define the relationships from one class to another.

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

After a successful upgrade, add the data and case type classes to the application rule in Dev Studio to have the selected classes appear as a node. In addition, if you want a relationship to display as relevant, set the properties (of the class that defines that relationship) as relevant.

 

For more information, see Exploring the data model.

Association changes after upgrade

Valid from Pega Version 8.3

Associations now have a simple mode. Simple associations are those that join to only one class, use a left join, and have one filter condition to a class key in the target class. Existing associations that define a simple foreign key relationship are upgraded to simple associations when opened; all others are treated as advanced associations. All associations continue to work in reporting.

Making an association simple changes only one piece of metadata; all other data on the association rule is not affected.

Upgrade impact

The new simple mode draws a map of where all the classes defined in the application rule are drawn as nodes. Relationships between the nodes that are defined by relevant properties are drawn as lines linking the two classes. This feature only includes Case and Data classes that are defined on the Application rule form's Cases and Data tab. It also only includes relevant fields for those classes in order to define the relationships from one class to another. 

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

After a successful upgrade, add the data and case type classes to the application rule in Dev Studio to have the selected classes appear as a node. In addition, if you want a relationship to display as relevant, set the properties (of the class that defines that relationship) as relevant.

 

For more information, see Associations.

 

Changes to URL format for Pega Web Mashup

Valid from Pega Version 8.3

The format of Pega Web Mashup URLs now supports multiple mashups on a single web page. The new URL format prevents a mashup from sharing cookies with another mashup.

If you want to include multiple mashups on a single web page and one of the mashups was created before 8.3, you must regenerate the mashup to reflect the new URL format.

For more information, see <link to help topic>.

Change tracking tab removed from declare expressions

Valid from Pega Version 8.3

To simplify the configuration of a declare expression, the Change tracking tab has been removed from the declare expression rule form. To use the Change tracking tab, on the declare expression rule form, click Actions > Use legacy expression.

For more information, see Supported and unsupported configurations in simplified declare expressions.

Upgrade impact

The declare expression rules have been moved from the pr4_rule table to the new pr4_rule_declare_expression table.

The upgrade can fail if you customize the pr4_rule table, such as increasing the length of an existing column.

After a successful upgrade, the declare expression rule form is simplified and lightweight pages support declare expressions.

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

Read-only data pages by default are lightweight. You could also enable lightweight pages for:

Only simplified declare expressions are supported in lightweight pages. In simplified declare expressions, context-bound rules are not supported. However, a page context could be specified on the New or Save As form of declare expressions. For more information, see Declare Expression rules - Completing the New or Save As form.

Redirectguests mashup configuration has been removed

Valid from Pega Version 8.3

The authentication/redirectguests server configuration and data-pega-redirectguests attribute have been removed and are no longer required when you configure a mashup. This prevents you from needing to maintain multiple nodes to support some use cases that require the configuration value to be true and other uses cases that require the configuration value to be false.

For more information, see Configuring the Mashup channel.

Additional upgrade scripts for new columns

Valid from Pega Version 7.1.4

In Version 6.2, additional columns (Major, Minor, and Patch) containing ruleset Version information were added to 15 tables in the PRPC database. When upgrading from a pre-Pega 7 release, scripts must be manually run after the upgrade to populate these columns.

These scripts are located in the Resource Kit, under Additional Upgrade Scripts.

  • If upgrading to a single schema, run both scripts.
  • If upgrading to a split schema, run the _data script against the data schema and run the _rules script against the rules schema.
  Depending upon your database type (platform) and the size of your database, these scripts may require significant time and system resources to run.

Choose the scripts for your database type:

  • db2zos_rulesetversion_columns_data.sql
  • db2zos_rulesetversion_columns_rules.sql

 

  • mssql_rulesetversion_columns_data.sql
  • mssql_rulesetversion_columns_rules.sql

 

  • oracle_rulesetversion_columns_data.sql
  • oracle_rulesetversion_columns_rules.sql

 

  • postgres_rulesetversion_columns_data.sql
  • postgres_rulesetversion_columns_rules.sql

 

  • udb_rulesetversion_columns_data.sql
  • udb_rulesetversion_columns_rules.sql

DB2-LUW database logfile size increase

Valid from Pega Version 7.1.5

This issue applies to DB2-LUW database platforms only.
 

To avoid running out of logfile space due to large transaction sets during the rule base load of a Pega 7.1.x install, upgrade, or maintenance level update, systems supported by a DB2-LUW database platform should increase the LOGFILSIZ parameter to at least 4096 pages from the default size of 1000 pages.

After the size has been increased, restart the database to ensure that the new setting is loaded into the database correctly.

Need to run script before updating Multitenant systems

Valid from Pega Version 7.1.5

When updating or upgrading a Multitenant system from Pega 7.1.5 or 7.1.6 to Pega 7.1.7, if that system uses either an Oracle or a PostgreSQL database, you may encounter the error:

“Table must be empty to add column.”

The Multitenant architecture requires an additional column on a number of the PRPC database tables (“pzTenantID”). In Pega 7.1.7, two additional PRPC tables were tenant-qualified: pc_schedule_task and pr_index_schedule_task. The Multitenant column is added to these tables by the update/upgrade process. However, Oracle and PostgreSQL do not allow the addition of a non-null column to an existing table unless the table is empty, so updating or upgrading systems on those databases displays the error detailed above.

To avoid this error, before beginning the update or upgrade, it is necessary to run a script:

  • OracleOracleMTupgrade.sql
  • PostgreSQLPostgresMTupgrade.sql

For updates, these scripts are located in the /scripts/ddl directory.

For upgrades, these scripts are located in the /Resourcekit/AdditionalUpgradeScripts directory.

No longer supported translator configuration options

Valid from Pega Version 7.4

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.

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