The EAS Cherenkov array Tunka-133, with about 3 km(2) sensitive area, has been installed in the Tunka Valley, Siberia. The accessible energy range is 10(15)-10(18) eV. In this contribution, a description of the array and main results obtained so far are presented. A current update of the array includes the deployment of scintillation stations, radio antennas, as well as optical stations. The deployments of these optical stations are the first step towards Tunka-HiSCORE, a wide-angle, large field-of-view gamma-ray telescope. (C) 2013 Elsevier B.V. All rights reserved.