New CHEOPS transit light curve of v² Lup d. Top panel: the light curve reduced with the CHEOPS automated DRP (blue points with error bars), modelled with a combination of instrumental effects (blue curve), stellar noise (green curve), and a transit. The model including all these effects is shown in orange. Middle panel: light curve corrected for the instrumental and stellar noise models (blue points), together with the best-fit transit model (orange curve). See Fig. 4 for a zoom on the transit itself. Bottom panel: residuals resulting from the difference between the detrended light curve and the transit model. For all panels, the error bars of the data points include the fitted additional jitter term added in quadrature. The open black circles show the light curve binned into 20-min intervals.