Comparison of GRB 210610B polarisation evolution to previous detections of GRB afterglow positive polarisation. Top: Measured GRB linear polarisation degree on the optical afterglow emission. The white and green stars mark the polarisation degree measured for GRB 210610B in all bands. As for all the data points, we did not make a distinction on the photometric band in which the polarisation was measured. We only selected the measured values that show a P/σ_P > 3 for all bursts, including GRB 210610B. The filled circles indicate the bursts for which a light curve is shown in bottom panel, and empty squares represent the bursts that are not represented in this last panel. The data and references can be found in Table B.1. Middle panel: PA measured for each corresponding burst and epoch in the same fashion as in the top panel. Note that as for GRB 021004 there is no measured PA. To better distinguish the PA changes, we subtracted the first PA value to all values and calculated the absolute value for those with a mean value below zero. We do not find significant PA changes except for GRB 121024A, GRB 091018, GRB 030329, and GRB 210610B. We note that the measures were carried out with different instruments, and the data reduction and analysis can be different from the one we followed in this work. Bottom panel: Light curve for some exemplary burst with data available in the literature GRB 020405 (Masetti et al. 2003), GRB 020813 (Gorosabel et al. 2004), GRB 021004 (de Ugarte Postigo et al. 2005), GRB 030329 (Lipkin et al. 2004), GRB 091018 (Wiersema et al. 2012), GRB 121024A (Wiersema et al. 2014), and GRB 210610B.