---
type: concept
title: Internal Versioning
tags: [backup, data-recovery, nextcloud, onlyoffice, version-control]
related: [nextcloud, zentrale-datensicherungsstrategie, onlyoffice, nextcloud-trash-bin-policy]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_dienste_webdienste_nextcloud.md", "output/rz_uni_greifswald_de_dienste_webdienste_nextcloud_bedienung_wiederherstellung.md"]
---

# Internal Versioning

**Internal Versioning** is a self-service data recovery feature provided by [[nextcloud]] and the mechanism used within the university's cloud services to track changes to documents and allow users to revert to previous states.

## Strategic Context
This feature serves as the first tier of recovery (also described as the "first line of defense") and complements the administrative [[zentrale-datensicherungsstrategie]] provided by the URZ.

## Implementation Paths

### Nextcloud Versioning
Nextcloud maintains a history of file versions that can be accessed through the web interface. The system creates backups of files and folders at irregular intervals, which are stored internally.

**Recovery Process:**
Users can restore previous versions of their data to a previous state without requiring administrative intervention. Depending on the source documentation, the process is described as:

*   **Version 1:**
    1. Navigating to the file or folder in the Nextcloud web interface.
    2. Clicking the **"Details öffnen"** (Open Details) button.
    3. Selecting the desired version to restore.
*   **Version 2:**
    1. Locate the file in the Nextcloud directory.
    2. Open the **3-dot menu** (options).
    3. Select **"Details"**.
    4. Navigate to the **"Versions"** tab to view and restore older copies of the file.

### OnlyOffice Versioning
For documents edited via the integrated [[onlyoffice]] suite, versioning is handled within the editor:
- **Path**: `File` $\rightarrow$ `Version History`.
- **Limitation**: This feature is only available for a limited number of supported file types.