The photocathode, a crucial component of the upgraded facility, is fabricated on-site. The RF gun generates high-charge, short-pulse, single bunches (Q > 100 nC) and long bunch-trains (Q > 600 nC) for wakefield experiments. Quantum efficiency (QE) measurements indicate long, stable photocathode lifetime under demanding conditions ― the QE of Cs₂Te cathode is typically near 3% for several years. The Cs₂Te photocathode has only been changed once since coming online in 2014.