When the system reaches patch version 89, in Pega Customer Decision Hub the Revision page shows a warning that displays the number of revisions left before you need to create a new minor version for the overlay ruleset.

After the system reaches patch version 99, the page displays an error, and the system does not deploy the revision.

1. Log in to the development environment.
2. In the header of Dev Studio,click the overlay application, and then click Definition.
3. In the Application rulesets section, create a new ruleset with a new minor version, for example "CDHOverlay:01-02-01". For more information about creating rulesets, see Creating rulesets.
4. In the Built-on applications section, in the Version field for the overlay application, select the new minor ruleset version, for example, "CDHOverlay:01-02".
5. Log in to your business operations, production, and other pre-production environments, and repeat steps 2-4 on all your environments in your pipeline.
6. If you resolve the error that you receive when revisions reach patch version 99, in Deployment Manager, rerun the pipeline from the start of the failing task.