# Upgrading from v3
While the [changelog](https://github.com/verbb/cp-nav/blob/craft-4/CHANGELOG.md) is the most comprehensive list of changes, this guide provides high-level overview and organizes changes by category.

## Renamed Classes
The following classes have been renamed.

Old | What to do instead
--- | ---
| `verbb\cpnav\services\LayoutsService` | `verbb\cpnav\services\Layouts`
| `verbb\cpnav\services\NavigationsService` | `verbb\cpnav\services\Navigations`