v3.1.0
No additional changes since v3.1.0-alpha4
#454 Fix null values attributes are omitted from included. Thanks @milosloub!
#464 Added extra information to FilterQuery. Thanks @wisepotato!
#458: Allow filter[id] and filter[related.id]. Thanks @milosloub!
#457 Fix Content-Type checking on non-json:api routes. Thanks @jonnolen !
#453 via #456 Fixed HasManyThrough relationships returning empty data array without 'include'. Thanks @XaserAcheron !
#436: Nested sparse fields. Thanks @milosloub!
#442: Nullable parent in nested inclusion. Thanks @milosloub!
#451 via #452 - DefaultRelationshipLinks. Thanks @milosloub!
#445 via #446 - Introduce mappedBy in HasOneAttribute to support Entity-Resource separation