> For the complete documentation index, see [llms.txt](https://docs.ushahidi.com/platform-developer-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ushahidi.com/platform-developer-documentation/dev-legacy-v3/development-and-code/upgrading-ushahidi.md).

# Upgrading Ushahidi

If you are on version V3.x.x (Kohana) please read the following before upgrading to V4.x.x (Lumen). Some things has changed that affect your api.

{% content-ref url="/pages/-M2-FPe7EvaI4UOmLKW-" %}
[Upgrading from V3.x.x to V4.x.x](/platform-developer-documentation/dev-legacy-v3/development-and-code/upgrading-ushahidi/upgrading-from-v3.x.x-to-v4.x.x.md)
{% endcontent-ref %}

When you are done reading above, or you already are on V4.x.x and want to upgrade to the latest release, move on to this guide.

{% content-ref url="/pages/-M2-FPe60YeSzToejli8" %}
[Upgrading to latest release](/platform-developer-documentation/dev-legacy-v3/development-and-code/upgrading-ushahidi/upgrading-to-latest-release.md)
{% endcontent-ref %}