Updating Runs When a Workflow Changes
You can update in-progress runs in bulk from the workflow edit page.
After editing a Workflow that has in-progress runs, click the Update Runs button in the Workflow editor toolbar. This button only appears when there are runs eligible for updating.
A dialog lists all in-progress runs with checkboxes (all selected by default). Deselect any runs you don’t want to update, then click Update Selected Runs.
Note: Updates are processed in the background and for large workflows, might take a few minutes.