# Using an unstable version

Last validated Jul 31, 2025

This topic explains a message that may appear in the Tailscale client and the actions you can take to address it. For a list of currently documented messages in the Tailscale admin console and client, refer to the main [Messages][kb-messages] topic.

## Message displayed in the client

Using an unstable version
This is an unstable version of Tailscale meant for testing and
development purposes. Please report any issues to Tailscale.

## Message ID

`is-using-unstable-version`

## Why you're seeing this message

Unstable versions of the Tailscale client are for testing and are not recommended for use in production environments. Therefore, this message displays for cautionary purposes only.

## What to do

If you are intentionally using an unstable version of the Tailscale client in a non-production environment or for other testing, you do not need to take any action.

## Additional reference

* For information about installing the Tailscale client, refer to [Install Tailscale][kb-installation].
* For information about updating the Tailscale client, refer to [Update Tailscale][kb-update].
* For information about Tailscale release tracks such as stable, unstable, and release candidates, refer to [Tailscale client versions and release tracks][kb-versions].

[co-support]: /contact/support

[kb-installation]: /docs/install

[kb-messages]: /docs/reference/messages

[kb-update]: /docs/features/client/update

[kb-versions]: /docs/reference/tailscale-client-versions