2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189132QCD is an extensively developed and tested gauge theory, which models the strong interactions in the high-energy regime. In this talk, I shall review the considerable progress which has been achieved in the last few years in the most actively studied QCD topics: Monte Carlo models, higher-order corrections, and parton distribution functions. Thanks to that, QCD in the high-energy regime is becoming more and more an essential precision toolkit to analyse Higgs and New Physics scenarios at the LHC.12 pages, 1 figure. To appear in the proceedings of WHEPP9, Bhubaneswar, India, January 2006High Energy Physics - Phenomenologytext