Add support for the latest 2.x diff module version.
In this version diff module has added type hinting to a bunch of their methods which is breaking a few modules that are extending those methods.
Fatal error: Declaration of Drupal\languagefield\Plugin\diff\Field\LanguageFieldBuilder::build(Drupal\Core\Field\FieldItemListInterface $field_items) must be compatible with Drupal\diff\Plugin\diff\Field\CoreFieldBuilder::build(Drupal\Core\Field\FieldItemListInterface $field_items): array
Active
1.0
Code