The evolution in the R_e − mass relation with redshift. Left: dynamical masses. Right: stellar masses. Colors and symbols are as in Fig. 17. The numbers give the average redshift in each bin. The full lines show the best-fit relation R_e = R_c(M/2 × 10¹¹   M_⊙)^0.56 with uniform galaxy weighting, the dashed lines with selection weighting. The blue lines show the reference line at zero redshifts. The vertical lines show the 2 × 10¹¹   M_⊙ mass.