# Upgrade guide for Gantt v5.2.5

## `Wbs` class has moved to `Core`

If you are using the `Gantt/data/Wbs.js` class, please update your imports to target the new `Core/data` folder.

**Before:**

```javascript
import Wbs from 'Gantt/data/Wbs.js';
```

**After:**

```javascript
import Wbs from 'Core/data/Wbs.js';
```


<p class="last-modified">Last modified on 2023-10-26 8:19:02</p>