The 'KASCADE Cosmic-ray Data Centre', KCDC (https://kcdc.iap.kit.edu), is a platform where in first order the scientific data from the completed air-shower experiment KASCADE-Grande is made available for the astroparticle community as well as for the interested public. In addition, KCDC offers users some interesting features and services that have been successively added in recent releases. In the past two years, we have improved performance in particular with a new mongoDB and the update of all relevant software, necessary to make the KCDC data shop faster and more stable. In addition to corresponding simulations, this also concerns data from other experiments, as well as access to Jupyter notebooks. With the latest release end of 2022, we added a plugin which allows event displays for the array data of KASCADE-Grande measured air-showers as well as C++ programs to enable users to generate their own event displays. In this update we present a brief history of KCDC, the main features of the recent releases as well as a short outlook to future development plans.