The Institute of Roentgen Optical System (IROS) has created four generations of X-ray lenses. The first lens generation was fabricated from the single capillaries with diameter about 0.4 mm. The second lens generation, from polycapillaries which had the channel size up to 5 - 10 micrometers . The third lens generation represents monolithic lenses which completely were drawn or caked in the furnace. For the last two years we mastered the new fourth generation of the X-ray lenses. The X-ray capillary optics which we created presently finds expanding applications in instrument engineering, ecology, microelectronics, astronomy, and medicine. This paper is devoted to the results obtained lately in the IROS.