ARKit iOS 12.0 Beta 6 to GM API Differences

ARPlaneAnchor.h

Added ARPlaneClassificationStatus

Added ARPlaneClassificationStatusNotAvailable

Added ARPlaneClassificationStatusUndetermined

Added ARPlaneClassificationStatusUnknown

Added ARPlaneClassificationStatusKnown

Added ARPlaneClassification

Added ARPlaneClassificationNone

Added ARPlaneClassificationWall

Added ARPlaneClassificationFloor

Added ARPlaneClassificationCeiling

Added ARPlaneClassificationTable

Added ARPlaneClassificationSeat

Added ARPlaneAnchor.classificationSupported

Added ARPlaneAnchor.classificationStatus

Added ARPlaneAnchor.classification