Published Release Notes

Tamper-proof Pega Web Mashup loading

To protect your application from hackers, Pega Web Mashup is now loaded in a more secure way. The system generates a channel ID in the mashup code for validation on the server, before passing the mashup request. 

For more information, see Creating a mashup.

Upgrade impact

After an upgrade to Pega Platform 8.5, existing mashups, which do not have the channel ID parameter in their code, cannot load and users see the access control warning.

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

If you need to maintain full availability of the mashup during the upgrade of the production environment, perform the steps in Migrating existing mashups.

Behavior changes when reporting on descendant classes

Report Definitions that use the Report on descendant class instances option with the Include all descendant classes option apply only to the Applies to Class. Join classes are not included as they were in previous Pega^® Platform versions. The following example shows what happens for each possible scenario for Report on descendant class instances when the report is defined on ClassA with a class join with Work-.

• If Report on descendant class instances is disabled, the report runs against ClassA and the join happens with Work-. The behavior is the same in Pega 7.3.1 as it is in previous Pega Platform versions.
• If Report on descendant class instances is enabled, and Include single implementation class is selected, the report runs against ClassA and the join happens with the MySampleClass implementation class. The behavior is the same in Pega 7.3.1 as it is in previous Pega Platform versions.
• If Report on descendant class instances is enabled, and Include all descendant classes is selected, the report runs against ClassA and its descendants and the join happens with Work-. In previous Pega Platform versions, the join happened with the MySampleClass implementation class.

Automatic separation of date input

Date fields in Date Time controls now automatically divide strings of input into days, months, and years. In single fields, the system adds slashes (/) as the user types the value. For example, an input string of 10102020 becomes 10/10/2020. In separate day/month/year fields, the system automatically switches from one field to the next as the user types the value. This enhancement improves the user experience by helping to users provide input in a more convenient and time-efficient manner.

For more information, see Configuring a Date Time control.

Improvements to OAuth 2.0 Services with Token Introspection Service and Token Denylist Service

Increase the security of user sessions by using the newly supported Token Introspection and Denylist services for OAuth 2.0.

Token Introspection service

Use the Token Introspection service to validate JSON Web Tokens (JWT). The Token Introspection service requires authentication. 

Pega now uses OAuth 2.0 access tokens called Authorized Access Tokens (AAT). 

Token Introspection service endpoint

The Token Introspection service endpoint provides the information about the status of access token and refresh token. Token introspection can be used to validate if a given token is still active or inactive. The token introspection endpoint determines whether the token is valid. The status indicates whether an access token or refresh token is valid or invalid: 

• Valid tokens have the “active”:true status
• Invalid tokens have the “active” :false status.

The inactive status can also be due to revocation. 

Token Denylist service

You can add tokens to the deny list in cases where suspicious activity might have occurred. The Token Denylist service provides a method for denying user access to the application by revoking the user's access token. This service can prevent a token from being used more than the specified number of times, which can be helpful in preventing replay attacks. Stolen tokens should be revoked using this service. A GET API is also available to get the list of denied tokens.

Keys endpoint

Pega Platform™ is changing from using opaque tokens to JSON Web (JWT) tokens. If this JWT is used by any other system, the public key is needed for signature verification. A new endpoint is exposed to provide these public keys in JWK format: https://host:port/prweb/api/oauth2/v1/token/keys.

For more information, see OAuth 2.0 Management Services.

Search and Reporting does not index large items

When using the Search and Reporting (SRS) microservice in Pega Platform™ 8.5, you might encounter problems with indexing large out-of-the-box rules. The issue is not visible in Queue Processors, but you can access logs to verify which items the system does not index.

Enable users to save charts as .png files

You can now enable users to save a report chart as a .png file. On the Chart tab of the Report Definition rule form, click General settings and select the Export chart to image check box. When you select this option, users are provided with the Save as image option, which they can use to save an image of the chart to include in a Word document or email.

For information about including a chart in a report, see Adding or editing charts from the Report Definition rule form.

Improved Clipboard performance

Clipboard performance has been enhanced to use high-speed, read-only data pages, making processing faster. For some high throughput use cases, performance might be degraded. If performance is degraded, you can use a restricted feature set for a specific read-only data page by selecting Restricted feature set for high throughput on the Load management tab of the data page rule.

For information about unsupported features when using a restricted feature set, see High-speed data page support.

Improved identification and handling of code assembly errors

Code assembly error logs are now more meaningful and help you identify root causes with better accuracy. Pega Platform™ now also invalidates erroneous assembly to facilitate successful reassembly when the code is accessed again. For example, if a section is not correctly assembled when a user first signs in to the system, the application attempts to reassemble that section the next time a user signs in. In this way, you can avoid lingering issues and improve stability.

Enhanced tables in Cosmos React UI

The Pega Platform™ Cosmos React UI environment now includes improved tables. The updated tables use a revamped graphic design and support a number of new run-time behaviors, including column freezing and advanced filtering. The added features improve the user experience by giving case workers more control over data in tables, while the revised architecture enhances efficiency and reliability.

Adjust styling for UI elements with standard CSS helper classes

Rather than creating a new skin format to make minor formatting changes to a user interface element, click the Open helper class picker icon on the Presentation tab of the Properties panel and select a predefined Cascading Style Sheet (CSS) helper class to apply to the element. For example, you can use a CSS helper class to center an element in a cell or layout. Using helper classes saves development time, reduces maintenance by limiting the number of customized skin formats, and improves the consistency of your application's look and feel. By avoiding the introduction of unnecessary static content, you also improve your application's initial loading time.

For more information, see CSS helper classes.