
Source: Dataverse Project Dataset + File Management — Dataverse.org
Once a dataset is published, it cannot be altered. If you need to update metadata or add new files, you can edit the dataset and upload the amendments. This will create a Draft version, which must be resubmitted for verification. Depending on the nature of the changes, the data steward will publish the dataset as:
The information about the current version is displayed at the top of the page or under the dataset title. Adding a new version does not affect the DOI identifier.