# core_analytics (subsystem) Upgrade notes

## 5.2

### Removed

- The `\core_analytics\manager::add_builtin_models()` has been removed from `public/analytics/classes/manager.php`.

  For more information see [MDL-87426](https://tracker.moodle.org/browse/MDL-87426)

## 5.0

### Removed

- Remove chat and survey from core_analytics.

  For more information see [MDL-82457](https://tracker.moodle.org/browse/MDL-82457)