---
myst:
  html_meta:
    "description lang=en": "Downloading and using development preview builds of Kasm Workspaces."
    "keywords": "Kasm, Workspace, Preview, Builds, Developer Preview"
    "property=og:locale": "en_US"
---
```{title} Developer Preview Builds
```

# Developer Preview Builds

Developers and system administrators may access preview builds of Kasm Workspaces and Workspaces Images
to test the latest features and integrations before they are officially published in a release build.

```{warning}
- Preview builds are published regularly, often daily or multiple times per day.
- Preview build may contain bugs or unfinished features and are therefore not suitable for production environments.
- Official customer support cannot be given for preview builds.
- There is no supported upgrade mechanism from preview builds to official releases.
```

## Feedback

While preview build are not officially supported, feedback is welcome and can be submitted at in the appropriate community issue trackers.

- Kasm Workspaces: <https://github.com/kasmtech/workspaces-issues/issues>
- Workspaces Images: <https://github.com/kasmtech/workspaces-images/issues>
- Workspaces Core Images: <https://github.com/kasmtech/workspaces-core-images/issues>

## Documentation

Documentation for new/updated features in preview builds of Kasm Workspaces is published in step with the code and  may be accessed using the {code}`develop` version of this site: {code}`https://kasmweb.com/docs/develop/index.html`
Notable updates are annotated in the upcoming ({{ next_release }}) version of the Release Notes:

- [Developer Preview Docs](https://kasmweb.com/docs/develop/index.html)
- [Release Notes](https://kasmweb.com/docs/develop/release_notes.html)

## Builds

**Installer**

```{eval-rst}
.. table::
    :widths: 200

    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Build**                           | **Link**                                                                                                                                            |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Workspaces Installer**            | `Download <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/kasm_workspaces_develop.tar.gz>`__  :                     |
    |                                     | `Build Info <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/build_info.json>`__                                     |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+

```

**Workspaces**

All Developer Preview versions of the {doc}`Default Docker Images <../guide/custom_images>` are published to Dockerhub under the {code}`develop` tag. e.g ({code}`kasmweb/chrome:develop`).
Source code is available in Github at the links below

- Workspaces Images: <https://github.com/kasmtech/workspaces-images>
- Workspaces Core Images: <https://github.com/kasmtech/workspaces-core-images>

**Offline Install Files**

```{eval-rst}
.. table::
    :widths: 200

    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Build**                           | **Link**                                                                                                                                            |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Workspaces Service Images amd64** | `Download <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/kasm_workspaces_service_images_develop_amd64.tar.gz>`__   |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Workspaces Service Images arm64** | `Download <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/kasm_workspaces_service_images_develop_arm64.tar.gz>`__   |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Workspaces Images amd64**         | `Download <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/kasm_workspaces_workspace_images_develop_amd64.tar.gz>`__ |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
    | **Workspaces Images arm64**         | `Download <https://kasmweb-build-artifacts.s3.amazonaws.com/kasm_backend/branches/develop/kasm_workspaces_workspace_images_develop_arm64.tar.gz>`__ |
    +-------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
```