On Oct. 21, the PIP-II Injector Test Facility accelerated proton beam through its superconducting section for the first time. At this test bed for the upcoming PIP-II superconducting accelerator, collaborators will test novel particle accelerator physics concepts and technologies to be deployed in the high-tech front section of PIP-II, the future heart of the laboratory accelerator complex. The milestone achievement also marks the start of a new era at Fermilab of proton beam delivery using superconducting accelerators.