# 4.5. Update Online Editor

> For the complete documentation index, see [llms.txt](https://doc.ibexa.co/en/5.0/llms.txt).

## RichText

Deprecated code related to the RichText field type has been removed from `ezpublish-kernel`.

If your code still relies on the `eZ\Publish\Core\FieldType\RichText` namespace, you need to rewrite it to use `EzSystems\EzPlatformRichText\eZ\RichText` instead.

## Extra buttons

Configuring custom Online Editor buttons with `ezrichtext.alloy_editor.extra_buttons` is deprecated.

If you added custom buttons in this way, you need to rewrite your code to use `ezplatform.system.<siteacces>.fieldtypes.ezrichtext.toolbars.<toolbar_identifier>.buttons` instead.