How does Pega handle versioning of rules?

Pega employs a robust versioning system that supports multiple iterations of a rule to coexist within an application. This approach is fundamental to Pega's design as it allows for flexibility and ensures that different versions of the same rule can be maintained simultaneously.

This means that when a new version of a rule is created, it does not automatically replace or delete the existing rule version. Instead, both versions can be active at the same time, and the system can decide which version to execute based on various factors such as the user's access rights, the current application's needs, and specific conditions set in the application logic. This capability is essential for managing gradual rollouts of changes, testing new rule versions without disrupting ongoing processes, and ensuring backward compatibility as needed.

The ability to support multiple active versions also aids in resolving conflicts and allows developers to compare different versions, facilitating a smoother transition when moving to a new version of a rule. This feature enhances the overall agility and robustness of Pega applications, enabling teams to innovate while maintaining operational stability.