> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://knowledge.buildagil.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Document Version History

* [Viewing the version history](#3-viewing-the-version-history)
* [Contents Version History](#3-contents-version-history)
* [Version History When Overwriting Files](#3-version-history-when-overwriting-files)

### Viewing the Version History
The version history allows you to track all changes made to a document and the [Restore Older Versions](/en/article/restoring-documents-16es0fi/). This ensures that the history remains transparent at all times. A new version is automatically created every time a change is made to the document. You can open the details and version history division using the document’s options.  

| The version number also increments if the document's content has not been edited but, for example, metadata has been added or tasks have been created directly from the document.

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/versionsverlauf-offnen_csqknt.png)

The entire revision history is displayed there. Overwritten versions remain available in the history. If an older version is opened, it can be restored.

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/dokumentenverlauf-anzeigen_140gxxs.png)

> Document versions, revision history, restore version, file history, document management, view older version, version control, track file changes, update document, open older version
### Contents Version History
The version history documents various types of changes. This allows for complete tracking of all activities related to a document.

**Changes to the document's content**
The content of Word, Excel, IFC, and PDF files is versioned as soon as changes are made.

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/anderungen-am-dokumenteninhalt_1diklg.png)

**Changes to Categories and Status**
Changes to [Categories](/en/article/project-settings-1rjsa05/) and its status are saved in the version history.

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/anderungen-an-kategorie_1brltru.png)

**Tasks, Information, and Topics Related to the Document**
If a [Task, Information, Topic](/en/article/overview-of-tasks-topics-mthdcc/) or comment is created for the document, it is also saved in the version history.

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/anderungen-aufgaben-informatio_mssy7a.png)

**Exam Questions**
Creating and customizing [Exam Questions](/en/article/reviewing-and-approving-documents-1x9xa4y/) are saved as a document.  

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/anderungen-prufaufgaben_3tlpgb.png)

**Sending Documents to External Parties**
The sending of a document to external recipients is logged in the history. Detailed information [Shipping Information](/en/article/sending-documents-to-external-contacts-1kbwrau/) can be viewed via this entry.  

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/extern-versenden_k6rjo3.png)

**Plotting Documents**
The plotting of a document is recorded in the version history. You can view more detailed information [Information About the Plot Job](/en/article/plotting-documents-plans-ta0ae0/) by clicking on the entry.  

![](https://storage.crisp.chat/users/helpdesk/website/d29f517da520580/dokumente-plotten_195vyjz.png)

**Model Views and Tasks**
If a [Model View](/en/article/creating-and-viewing-bcf-and-model-tasks-c6gbjn/) is copied and used, or if a [Model task](/en/article/creating-and-viewing-bcf-and-model-tasks-c6gbjn/) is created, this is subsequently visible in the version history. The respective element can be opened directly from the model view.

![](https://storage.crisp.chat/users/helpdesk/website/-/d/2/9/f/d29f517da520580/versionsverlauf-des-modells_6zboay.png)

### Version History When Overwriting Files
**Replace by Uploading**
When uploading, a file can replace an existing version. If a file with the same name is uploaded from a local location, a new version is automatically created from the file already present on buildagil. For more information on overwriting documents, see the following article: [Uploading Folders & Documents](/en/article/uploading-folders-documents-all435/).

**Replace by Copying Within the Project**
If a file that already exists in buildagil is copied within buildagil to a folder that already contains a file with the same name, a message will appear. This message allows you to choose whether to overwrite the existing file or keep both versions.  

![](https://storage.crisp.chat/users/helpdesk/website/-/d/2/9/f/d29f517da520580/dokument-ersetzen_uzjwzw.jpg)

When overwriting in this case, the existing version history is not retained, since the existing file is completely replaced by the copied file.

> Document changes, status history, category changes, task log, proofing history, external document approval, shipping tracking, plot history, change log, document activities