HomeKit Changes HomeKit HMCharacteristicDefines.h Removed HMCharacteristicValueLockMechanism Added HMCharacteristicValueLockMechanismLastKnownAction Added HMCharacteristicValueLockMechanismLastKnownActionSecuredUsingPhysicalMovement Added HMCharacteristicValueLockMechanismLastKnownActionUnsecuredUsingPhysicalMovement HMCharacteristicMetadata.h Added HMCharacteristicMetadataUnitsSeconds HMError.h Added HMErrorCodeCannotUnblockNonBridgeAccessory Added HMErrorCodeDeviceLocked