Distribution of galaxies within the MAGIC footprint in the apparent z⁺⁺ band magnitude–redshift plane for COSMOS–z_spec sources with secure (red) and likely (orange) redshifts and new MAGIC sources with secure redshifts (blue). The fraction of galaxies with new secure MUSE redshifts is provided as a function of magnitude (right panel) and redshift (top panel), with respect to either COSMOS–z_spec secure (red) or both secure and likely (orange) redshifts.