> ## Documentation Index
> Fetch the complete documentation index at: https://new-fb342056.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Version History

> Learn how flow versioning works in Robocallz.ai

[Robocallz.ai](http://Robocallz.ai) keeps track of all published flows and their versions. Here’s how it works:

1. You can edit a flow as many times as you want in **draft** mode.
2. Once you’re done with your changes, you can publish it.
3. The published flow will be **immutable** and cannot be edited.
4. If you try to edit a published flow, [Robocallz.ai](http://Robocallz.ai) will create a new **draft** if there is none and copy the **published** version to the new version.

This means you can always go back to a previous version and edit the flow in draft mode without affecting the published version.
![this title](https://mintlify.s3.us-west-1.amazonaws.com/autocalls/resources/flow-history.png)

As you can see in the following screenshot, the yellow dot refers to DRAFT and the green dot refers to PUBLISHED.