# Version history
Version history provides a systematic approach to keeping track of changes made to an asset in ReOrc. You can create and publish an asset under a specific version, allowing your team to review the progression of changes and roll back to previous versions if necessary.
## Publish a version
By default, when you first create an asset, such as a model or a pipeline, that asset is in the `draft` state. After you've made some changes to the asset, you can publish it to indicate that the asset is ready for use in your data workflow. This means creating a version of the asset and recording it in version history.
To publish an asset, follow these steps:
1. In the editor, click on the **Publish** button.
This opens the asset publishing modal.
2. In **Version Information**, provide the version number and the update message to describe the changes you made.
3. If you're making changes to an already published asset, you can switch to the **Compare changes** tab to see the diff view.
Diff view compares the current modifications to the latest version of the asset.
4. Click **Publish**.
## View version history
You can view all the versions of an asset in version history.
Follow these steps:
1. Open the asset in the editor.
2. Click on the **Version history** button.
3. In the opened **Version history** panel, you can see the list of versions of the asset.
4. Select a version to view the detailed changes.
