> For the complete documentation index, see [llms.txt](https://docs.viesus.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.viesus.com/installation/updating.md).

# Updating

The **VIESUS Patch** is a lightweight installer (\~26.7 MB) that updates individual components — such as the Commandline tool — without reinstalling the full package. Use it to apply updates quickly between major releases.

The Patch comes in CPU and GPU variants; use the one that matches your installed base package:

* `VIESUS_Patch_Setup_VIESUS_<VERSION>_GPU_x64.exe`
* `VIESUS_Patch_Setup_VIESUS_<VERSION>_CPU_x64.exe`

{% hint style="info" %}
The Patch updates an existing installation. Install the base [CLI & Viewer](/installation/cli.md) package first.
{% endhint %}

***

## Apply a patch

Download the patch from the [VIESUS Transfer Portal](https://transfer.viesus.com), then right-click it and choose **Run as administrator**.

{% stepper %}
{% step %}

## Accept the license agreement

Read and accept the EULA, then click **Next**.

<figure><img src="/files/w72w0pp7To3PL1M76UXN" alt="Patch license agreement"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

## Select components

Select only the components you want to update. **VIESUS Commandline** is pre-selected by default; uncheck anything that doesn't need updating, then click **Next**.

<figure><img src="/files/51gmn1yGcX8WqcVtxCxv" alt="Patch Select Components screen"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

## Additional tasks

Desktop icons are unchecked by default for a patch update. Click **Next**.

<figure><img src="/files/dVmRwKXtmbZWpIsPAwxM" alt="Patch Additional Tasks screen"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

## Ready to install

Review the selected components, then click **Install**.

<figure><img src="/files/zGEvYYg1X7ryn4rMIFzh" alt="Patch Ready to Install screen"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

## Finish

Click **Finish**.

<figure><img src="/files/C985sk3LF20uVKkjsV8I" alt="Patch installation complete"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

***

## Verify the update

Confirm the patched component reports the expected version:

```bash
viesus --version
```


---

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