2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98214In this paper homology stability for unitary groups over a ring with finite unitary stable rank is established. Homology stability of symplectic groups and orthogonal groups appears as a special case of our results.8 pages, LaTeXK-Theory and Homology05E25; 11E57; 19B14; 19D55text