In Drupal 11.3, core introduces an important structural change for the taxonomy system:Drupal\taxonomy\Form\OverviewTerms now extends Drupal\Core\Entity\EntityForm.
This update modernizes the taxonomy UI, makes the overview form fully consistent with other entity-based forms, and—most importantly—gives developers a cleaner and more powerful way to customize and override it.
In this article, we’ll walk through the change, why it matters, and how you can override the form in your own module.