Change record status: 
Project: 
Introduced in branch: 
11.3.x
Introduced in version: 
11.3.0
Description: 

When implementing composite constraints in Drupal, the constraint class must implement \Drupal\Core\Validation\CompositeConstraintInterface. The public static method \Drupal\Core\Validation\CompositeConstraintInterface::getCompositeOptionStatic() is a copy of Symfony's \Symfony\Component\Validator\Constraints\Composite::getCompositeOption() method and allows the Drupal ConstraintManager to instantiate the nested constraints.

Impacts: 
Module developers