v5.0.0-alpha.3
The Doctrine (ORM, ODM, Common) and JSON:API components ship filters implementing OpenApiParameterFilterInterface that instantiate ApiPlatform\OpenApi\Model\Parameter, and none of them depends on api-platform/openapi. ParameterResourceMetadataCollectionFactory only guards that call with class_exists() as of v5.0.0-alpha.3, so an older metadata makes them fatal on an install without the OpenApi component.