Unity Engine documentationScript ReferenceUnityEngineCollisionDetectionMode2DNoneThis mode is obsolete. You should use CollisionDetectionMode2D.Discrete mode.Read time 1 minuteLast updated 2 days agoDefinition Type: Field Namespace: UnityEngine Assembly: UnityEngine.Physics2DModule WarningRemoved. Enum member CollisionDetectionMode2D.None has been deprecated. Use CollisionDetectionMode2D.Discrete insteadUpgrade to CollisionDetectionMode2D.Discrete None = 0