Updated measurements of hadronic B decays at CDF

The CDF experiment at the Tevatron pp ̄ collider established that extensive and detailed explo- ration of the b–quark dynamics is possible in hadron collisions, with results competitive and supplementary to those from e+e− colliders. This provides a rich, and highly rewarding pro- gram that has currently reached full maturity. In the following I report some recent results on hadronic decays: the evidence for the charmless annihilation decay mode B0s → π+π−, and the first reconstruction in hadron collisions of the suppressed decays B− → D(→ K+π−)K− and B− → D(→ K+π−)π−.