You're referencing a small fraction of cherry-picked American weapons Ukraine is receiving. Other nations are giving other weapons, many of which are current generation. Patriots are current generation, and are continuously updated with new missiles and software. If you consider any weapon system that was not initially designed a few years ago to be old, then almost every weapon system the US and Europe is currently fielding would be "old".

To name a few current generation systems given to Ukraine: IRIS-T AA missile systems, StormShadow / SCALP cruise missiles, AGM-88 HARM missiles, AIM-120 AMRAAM missiles, NLAW anti-tank missiles, Martlet missiles, Starstreak AA missiles, Aster AA missiles, Krab artillery systems, CEASAR artillery systems, Excalibur guided artillery, ECV90 IFVs, and on and on the list goes.