# Assumption Versioning
URL: https://docs.valsight.ai/assumption-versioning/
Description: When creating a new version of an Assumption, you save the Assumption with all its properties as well as all the Line-Items attached to it. Please keep in mi…
When creating a new version of an Assumption, you save the Assumption with all its properties as well as all the Line-Items attached to it. Please keep in mind that the Assumption versions cannot be deleted.
When restoring a version, all changes which have been made since the creation of the version will be reverted, including all changes to Line-Items. Please make sure you create a current version of your Assumption if you wish to save those.

## Create new versions of assumption

Open the *Scenario Manager* and select the *options* (3 dots) next to the Assumption you want to version. Select *Versioning → Save Version* to save the current state of the Assumption.

![Screen Shot 2019-02-18 at 13.33.29.png](./images/5094190237.png)

Now you can name the new Assumption version and provide a description if you chose to do so. Hit *Confirm* to save the Assumption Version.

![Screen Shot 2019-02-18 at 13.33.48.png](./images/5094190242.png)

## Restore an assumption version

Open the *Scenario Manager* and select the O*ptions* (3 dots) next to the Assumption you want to restore. Select *Show History* to open all saved Assumption Versions.
Now select the version you want to restore and choose *Restore to selected version*.

![Screen Shot 2019-02-18 at 13.34.30.png](./images/5094190172.png)

## Restoring assumptions with Line-Item variants

Versioning Assumptions **includes** all **Line-Items** and all **Line-Item Variants.**

When restoring Assumptions that include Variants, the restored Variants will override all currently existing Variants.