Marginalized posterior contours in the S​₈–Ω_m plane (inner 68% CL, outer 95% CL). We show the KV450 constraints in green (solid) using an analysis setup that follows H20, but including an additional redshift dependence of the IA signal (denoted ‘KV450’). In black (dashed), we show the DES-Y1 constraints corresponding to the original T18 analysis, noting that the sum of neutrino masses is varied in this analysis (and hence the contour should not be directly compared with the orange (solid) Planck 2018 contour where the neutrino mass is fixed). The blue (solid) contours show the DES-Y1 constraints where an identical setup to the KV450 analysis is used (along with the original DES-Y1 redshift distributions).