| A | ↛ | JsonApiHydrator removed |
| ⇢ | A | RestRequest::isContentJsonApi() added | |
| C | ↛ | JsonApiHydrator::hydrateAssociations() removed | |
| A | ↛ | JsonApiHydrator::getResourceId() removed | |
| A | ↛ | JsonApiHydrator::hydrateProperties() removed | |
| A | ↛ | JsonApiHydrator::mapRelationshipsArray() removed |