> For the complete documentation index, see [llms.txt](https://ston-fi.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ston-fi.gitbook.io/docs/developer-section/dex/sdk/legacy/v0.4.md).

# v0.4

{% hint style="warning" %}
`v0.4` version of the SDK is deprecated. Please use latest SDK version instead
{% endhint %}

The remaining sections of the documentation will demonstrate specific examples of the SDK usage:

* [perform a swap operation](/docs/developer-section/dex/sdk/legacy/v0.4/swap.md)
* [provide liquidity](/docs/developer-section/dex/sdk/legacy/v0.4/lp_provide.md)
* [refund liquidity](/docs/developer-section/dex/sdk/legacy/v0.4/lp_refund.md)
* [burn liquidity tokens](/docs/developer-section/dex/sdk/legacy/v0.4/lp_burn.md)
* [using get methods](/docs/developer-section/dex/sdk/legacy/v0.4/getters.md)
* [create a custom router revision](/docs/developer-section/dex/sdk/legacy/v0.4/revision.md)