- Symfony 7.4, Doctrine ORM 3.7 (DBAL 3), API Platform 4.4 (security
  advisories fixed), Lexik Translation 8.1, ramsey/uuid-doctrine 2,
  Knp Paginator 6, Vich 2, GrumPHP 2, Flex 2; proxy-manager-bridge removed.
- Doctrine subscribers -> listeners: Symfony 7 silently ignores the
  doctrine.event_subscriber tag (UserFieldsDoctrineListener, FluxListener,
  UnitOfWorkListener were no longer called). ListenersTest added.
- ORM 3 stricter mapping: JoinTable removed from inverse sides (they were
  ignored), wrong inversedBy removed (AchatMonnaieAConfirmer, SolidoumeParameter),
  fully qualified target entities; the mapping is now valid.
- JSON columns kept in LONGTEXT (App\Doctrine\Type\JsonTextType, as the
  removed Sonata json type) instead of native JSON columns.
- Migration: Sonata Media 4.20 / Lexik 8 column changes.
- Impersonation: IS_IMPERSONATOR instead of ROLE_PREVIOUS_ADMIN (no longer
  granted since Symfony 6: the exit link was hidden), SwitchUserSubscriber
  token rebuilt without the removed SwitchUserRole.
- Security class, SecurityRequestAttributes, repositories getEntityManager(),
  setParameter() instead of array setParameters().
- API Platform 4: use_symfony_listeners, docs formats, OpenAPI parameters;
  responses unchanged except the Content-Type charset.
- JSON adherent export: the cotisation profile as in the CSV export (the
  Doctrine proxy was exported).
- Baseline: PHP errors are now 500 responses (handle_all_throwables).