Evolution of the magnetic topology of AD Leo, EV Lac, CN Leo, and DS Leo. The temporal baseline covers 15 yr, including the archival optical maps (Donati et al. 2008; Morin et al. 2008; Hébrard et al. 2016) and the near-infrared maps reconstructed with SPIRou data in this work and in Bellotti et al. (2023b) for AD Leo. The field strength, level of axisymmetry, and dominant field component (poloidal or toroidal) are encoded with the symbol size, shape, and colour, respectively. The red and blue data points represent poloidal- and toroidal-dominated field geometries, whereas round and star-like shapes indicate mostly axisymmetric and non-axisymmetric configurations.