> For the complete documentation index, see [llms.txt](https://developers.zortout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.zortout.com/announcements/api-update/1-june-2023-important-update.md).

# \[1 June 2023] Important Update

**We already launched new API version 4.**

{% hint style="info" %}
Please follow what API version 4 is changed from API version 3 as this link.

<https://developers-v3.zortout.com/announcements/api-update/4-may-2023-important-update>
{% endhint %}