# 2025-12-17: Webhook Service - update category event schema

## Overview

Category event schemas were updated to include support for classification categories and their associated mixins.

## Added new fields

| Event                | Description                                                                     |
| -------------------- | ------------------------------------------------------------------------------- |
| `category.created`   | Support for `classificationMixins` added.                                       |
| `category.updated`   | Support for `classificationMixinsBefore` and `classificationMixinsAfter` added. |
| `assignment.created` | Support for `classificationMixins` added.                                       |

## Known problems

There are no known problems.

## Links

* [Events - Category Tree](https://app.gitbook.com/s/d4POTWomuSS7d3dnh4Dg/api-guides/webhooks/webhook-events/events-category)