# WorkflowClient.unpublish_release

```python
def WorkflowClient.unpublish_release(
    workflow_or_slug: Workflow | str,
    release_or_id: WorkflowRelease | UUID | str,
) -> None
```

Remove a workflow release from the set of published releases.

## Parameters

**workflow\_or\_slug**

`Workflow | str`

required: true

The workflow or workflow slug containing the release to remove.

**release\_or\_id**

`WorkflowRelease | UUID | str`

required: true

The workflow release or release ID to remove.

```python title="Python"
workflow_client.unpublish_release(workflow, release.id)
```