Control group configuration for predictions
Valid from Pega Version 8.5
You can now configure a control group for your predictions in Prediction Studio. Based on the control group, Prediction Studio calculates a lift score for each prediction that you can later use to monitor the success rate of your predictions.
For more information, see Customizing predictions.
Response timeout configuration for predictions
Valid from Pega Version 8.5
You can now set a response timeout for your predictions in Prediction Studio. By setting a response timeout, you control how Prediction Studio registers customer responses that later serve as feedback data for your predictions.
For more information, see Customizing predictions.
External data flow rules are deprecated
Valid from Pega Version 8.5
External data flows are now deprecated and no longer supported. To improve your user experience with Pega Platform™, the user interface elements associated with these rules are hidden from view by default. Identifying unused features allows Pega to focus on developing and supporting the features that you need.
For more information, see Deprecated: External data flows.
Tamper-proof Pega Web Mashup loading
Valid from Pega Version 8.5
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.
Support for React-based components in Pega Infinity applications
Valid from Pega Version 8.5
React-based components can now conveniently be enabled in any existing Pega Infinity™ application without the need to migrate the application to the full React UI. By selecting a single option, you can enable and experience some of the most modern functionalities, such as intuitive and comfortable landing page authoring, or the more efficient React-based tables.
For more information, see Enabling Cosmos React UI for landing pages.
Better support for custom PDF fonts
Valid from Pega Version 8.5
Pega Platform™ now supports loading custom fonts for PDF files from a binary file by using the CSS @font-face rule. With this enhancement, your application can generate PDF files that use custom fonts without relying on a dedicated font folder or a cloud bundle. As Pega moves away from folder-based solutions, you can migrate font management to a binary rule for quicker development and improved maintenance.
For more information, see Generating PDFs from your UI.
Visual Business Director data is automatically cleaned after a retention period expires
Valid from Pega Version 8.5
To avoid negative impact on system resources, such as memory and disk space, Pega Platform™ automatically cleans out collections data accumulated in Visual Business Director after the time period specified in the vbd/dataRetentionTimeout dynamic system setting.
Upgrade impact
In versions of Pega Platform earlier than 8.5, collections data was not automatically removed. From version 8.5, the data is removed after 465 days (15 months) by default.
What steps are required to update the application to be compatible with this change?
If the default data retention period does not meet your requirements, you can change it by editing the vbd/dataRetentionTimeout setting.
For more information, see "Configuring the data retention period for Visual Business Director" in the Pega Customer Decision Hub 8.5 Upgrade Guide on the Pega Customer Decision Hub product page.
Optimization check utility available for legacy strategies
Valid from Pega Version 8.5
Ensure that your strategies are compatible with the optimized strategy execution engine introduced in Pega Platform™ 8.1 by running a post-upgrade utility that checks strategies within your application for areas that you can optimize, for example, by reducing the number of page properties that are copied from one shape to another. Running the utility produces a report that you can use to plan the required updates to your strategies.
For more information, see Make your strategies compatible with the optimized strategy execution engine by using a check utility.
Uploading customer responses into adaptive models is no longer available
Valid from Pega Version 8.5
The option to train adaptive models by uploading a static list of historical interaction records has been deprecated in Pega Platform™ 8.5.
Upgrade impact
In versions of Pega Platform earlier than 8.5, it was possible to train an adaptive model by uploading historical data of customer interaction. After the upgrade to version 8.5, this option is no longer available.
What steps are required to update the application to be compatible with this change?
Use data from a report definition to train adaptive models. For more information, see Training adaptive models.
More flexibility for Date Time predictors in adaptive models
Valid from Pega Version 8.5
You can configure adaptive model predictors that indicate the amount of time that has elapsed since a particular event. In versions of Pega Platform™ earlier than 8.5, you could only specify the absolute date and time, for example, the date when a subscriber last visited one of your brick-and-mortar store locations. In Pega Platform 8.5, you can also indicate the amount of time that has passed, for example, the number of days since a subscriber purchased a new service plan.
For more information, see Adding a predictor to an adaptive model.