# Comparing Versions

You will never lose changes on a page because all the old versions of the page are saved in **History**.

To compare a page on the site with its previous versions:

1. Navigate to the page whose versions you wish to view.
2. Go to the **Info** tab.
3. Click on the **Rollback** button in the **History** section.

   ![Rollback](/files/hH1Uo4u34gMWGDlYTQ5m)
4. The Rollback window opens. Select a version you wish to compare with.

   After selecting the version, a comparison of the current page with the version you selected is displayed. The text highlighted in red and striked-out will not appear in the selected version and the text highlighted in green means the text that will be added, should you choose to rollback to that version of the page.

   ![Rollback Changes](/files/YHMuNPmZsPnPBwvbUlkg)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.umbraco.com/umbraco-cms/tutorials/editors-manual/version-management/comparing-versions.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.