Mixing and $C\!P$ violation in beauty and charm at LHCb

Abstract: We review the most precise tests of the CKM model of flavour physics performed by the LHCb collaboration during the current year. These include world best measurements of both time-dependent and time-independent $C!P$ violation in charm decays, the first observation of a nonzero mass difference of the neutral charm-meson eigenstates, and the most precise determination to date of the mass difference between the $B_s^0$ eigenstates. A new simultaneous combination of measurements of the CKM angle $\gamma$ and of charm decays allows to improve the precision on the decay-width difference of the neutral charm-meson eigenstates by a factor of 2 with respect to the combination of charm results only and to reach the best precision on $\gamma$ from a single experiment. The precision of the measurements is mainly limited by statistics, so further improvement is expected in the future.