Flavour physics represents a fundamental testbed of the Standard Model (SM).
New measurements performed at the LHC experiments and at the $B$-factories are now providing unprecedented
opportunities to study the Cabibbo-Kobayashi-Maskawa (CKM) matrix with high precision. In this picture, Unitarity Triangle Analysis (UTA) represents a fundamental tool to provide very precise SM predictions through global analyses and to uncover possible New Physics (NP) effects.
In this proceeding we present the results of the latest SM global fits performed by the
UTfit collaboration including all the most updated inputs from experiments,
lattice QCD and phenomenological calculations.
Going beyond the SM, we also extend the UTA in order to constrain the
parameter space in some possible NP scenarios. To this end, we update the stringent
constraints on the NP scale from the most general structure of the $| \Delta F | = 2$ effective Hamiltonian by determining the allowed NP contributions in the kaon, $D$, $B_d$, and $B_s$
sectors.