3.10. Updating Processes

Over time, the requirements for a process might change. In order to update a process, it is necessary to deploy an updated version of the process. The updated process must have an updated version number to distinguish it from the old process; this is necessary because the old process may still be required by an existing process instance.

Whenever a process is updated, it is important to determine what should happen to the already running process instances. There are three possibilities:

The default behavior follows the proceed approach, which results in multiple versions of the same process being deployed. Existing process instances continue executing based on the process definition that was used when starting the process instance.

The version number should be tracked to determine which version of a process definition a process instance is using. The current version of the process can be retrieved:

processInstance.getProcess().getVersion()