# Version history
Hippoly keeps a full history of every version of your document. You can browse earlier versions, see what changed between them, restore and download a previous version if needed.
## Open version history
When viewing a document, click the `Details` button in the right toolbar and select the **Versions tab** in the panel. A list of versions is shown in chronological order, with the user who shared each change and when it was made.
## View a previous version
Click a version in the list to open it in the editor. A banner at the top reminds you that you're viewing a previous version rather than the current content of the document.
To return to the latest version, click the `Latest version` button in the banner.
## See what changed
Hippoly can show you what changed compared to the previous version.
{% stepper %}
{% step %}
Open the version history.
{% endstep %}
{% step %}
Click the **menu icon** on the version you want to compare and select `Show what changed`.
{% endstep %}
{% step %}
The version will open in the editor with insertions and deletions highlighted word-by-word
{% endstep %}
{% endstepper %}
## Restore a previous version
If you want to bring back an earlier version of the document, you can restore it. Restoring does not delete the newer versions, it creates a new version with the restored content as the starting point.
{% stepper %}
{% step %}
Open the version history.
{% endstep %}
{% step %}
Click the **menu icon** on the version you want to restore and select `Restore` .
{% endstep %}
{% step %}
Confirm the action in the dialog. A new version is created with the content of the restored version. All previous versions remain in the history.
{% endstep %}
{% endstepper %}
## Download a previous version
You can download previous versions of a document at any time.
{% stepper %}
{% step %}
Open the version history.
{% endstep %}
{% step %}
Click the **menu icon** on the version you want to download and select `Download` .
{% endstep %}
{% step %}
The document will be downloaded as a PDF-file to your device.
{% endstep %}
{% endstepper %}
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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://help.hippoly.com/using-hippoly/hippoly-docs/version-history.md?ask=
```
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.