> For the complete documentation index, see [llms.txt](https://help.prodcamp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.prodcamp.com/widgets/changelog-widget.md).

# Changelog widget

1. Install the widget SDK by following the steps described below:

{% content-ref url="/pages/-MkT-mqpZEgkRg32PTEn" %}
[Installing widgets](/widgets/installing-widgets.md)
{% endcontent-ref %}

2. After installing the SDK code you need to add an attribute **data-prodcamp-changelog** to a button that you want to use to open the changelog widget, and after that - call the Changelog init function:

```javascript
<script>
    ProdCamp('initChangelog');
</script>
```

It's recommended to place the script above in a separate \<div> block.