We describe SuperIso v2.4 which is a public program for evaluation of flavor physics observables in the minimal supersymmetric extension of the Standard Model (MSSM). SuperIso v2.4, in addition to the isospin asymmetry of B → K * γ, which was the main purpose of the first version, incorporates new flavor observables such as the branching ratio of B s → µ + µ − , the branching ratio of B → τ ν τ...