# Use App Versions

## Purpose

With app versioning, you can safely make changes to your application without worrying about disturbing other users workflow. Preview any version before publishing it.

## Usage Tips

* If you prefer to work on a larger area, go to "<https://app.deplyr.com/app/\\>\<app\_id>.preview/" and refresh the page once you save updates in Deplyr. It will automatically update the "preview" version to the one you just saved.
* You can view any version of your app by changing the value after the periond in the URL. For example, this would fetch version 4: "<https://app.deplyr.com/app/\\>\<app\_id>.v4/"

<figure><img src="https://3275459517-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FpzMNnzBQUG68TX862mfx%2Fuploads%2FLAJ9gKNnnIrD9I18gCpQ%2Fimage.png?alt=media&#x26;token=5342b1b3-7df3-4e11-9c36-d4c002f3ec38" alt=""><figcaption><p>Deplyr in-app version control</p></figcaption></figure>


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