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# Cannot See Pipeline History for Changes Made

### Issue <a href="#issue" id="issue"></a>

Users can’t see pipeline history for changes made to the pipeline. After making changes to the pipeline in Spinnaker, from the **Pipeline Actions** menu users should be able to select **View Revision History**, but it says **No version history found**.The correct behavior should show as following:

### Cause <a href="#cause" id="cause"></a>

Spinnaker leverages underlying object versioning capabilities in S3/GCS. Check if the object versioning has been enabled for the underlying bucket.