  I will describe the latest results from lattice QCD pertaining to a potential
flavour hierarchy in the hadronic freeze-out from the QCD crossover region. I
will compare these results to a variety of improved hadronic resonance gas
calculations and to experimental data of fluctuations of net-charge, net-proton
and net-kaon multiplicity distributions, which serve as a proxy for the
susceptibilities of conserved quantum numbers on the lattice. I will conclude
that there is intriguing evidence for a flavour dependent freeze-out, and I
will suggest expansions to the experimental program at RHIC and the LHC that
could potentially demonstrate the impact of a flavour separation during
hadronization.
