> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/umbraco-cms/13.latest/tutorials/editors-manual/version-management/comparing-versions.md).

# 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](https://3872888104-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgEH4FChbCn7eDDqREvdE%2Fuploads%2Fgit-blob-ac96a3fca602e38e28f399de9a44368792dfbaa0%2FRollback-v9.png?alt=media)
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](https://3872888104-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgEH4FChbCn7eDDqREvdE%2Fuploads%2Fgit-blob-a842a6260f13aa148b9c4194ba8b9b851fb4bfe5%2FRollback-changes-v10.png?alt=media)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

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

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.umbraco.com/umbraco-cms/13.latest/tutorials/editors-manual/version-management/comparing-versions.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.