Change record status: 
Project: 
Introduced in branch: 
12.1.x
Introduced in version: 
12.1.0
Description: 

The UniquePathAlias constraint and its validator moved to the path_alias module. The plugin ID is unchanged.

  • Drupal\Core\Path\Plugin\Validation\Constraint\UniquePathAliasConstraint is now Drupal\path_alias\Plugin\Validation\Constraint\UniquePathAliasConstraint
  • Drupal\Core\Path\Plugin\Validation\Constraint\UniquePathAliasConstraintValidator is now Drupal\path_alias\Plugin\Validation\Constraint\UniquePathAliasConstraintValidator

The old class names are deprecated and will be removed in Drupal 13.

Impacts: 
Module developers