Neutrino physics after Planck

We present constraints on neutrino physics derived from the 2013 Planck data release, which involves data collected during the first 15.5 months of observations. After a brief description of the effect of neutrino masses and number of relativistic species on CMB anisotropies, we present results obtained from Planck data alone and in combination with other astrophysical probes. In particular, Planck set constraints on the sum of neutrino masses is ∑mν<0.23eV, and on the number of relativistic species of both at 95% C.L. Finally, we briefly discuss updated results from the Planck 2015 data release as well as future prospects for CMB experiments.