symfony/UPGRADE-5.2.md

UPGRADE FROM 5.1 to 5.2

DependencyInjection

• Deprecated Definition::setPrivate() and Alias::setPrivate(), use setPublic() instead

FrameworkBundle

• Deprecated the public form.factory, form.type.file, translator, security.csrf.token_manager, serializer, cache_clearer, filesystem and validator services to private.

Mime

• Deprecated Address::fromString(), use Address::create() instead

TwigBundle

• Deprecated the public twig service to private.

Validator

• Deprecated the allowEmptyString option of the Length constraint.

  Before:

  use Symfony\Component\Validator\Constraints as Assert;
  
  /**
   * @Assert\Length(min=5, allowEmptyString=true)
   */
  

  After:

  use Symfony\Component\Validator\Constraints as Assert;
  
  /**
   * @Assert\AtLeastOneOf({
   *     @Assert\Blank(),
   *     @Assert\Length(min=5)
   * })
   */