The Seminar is the sixteenth in a series devoted, in a time span of 40 years, to detectors and experiments for high-energy particle physics and astrophysics. Special attention is also devoted to the application of these detectors in other fields, such as detectors for medicine and biology, homeland security control, muon-tomography of archeological and geophysical structures and environmental monitoring.
I shall discuss selected highlights from IPRD23, which was held in Siena, Italy, 25-29 September 2023. For further details, please refer to the programme, to be found at https://web.bo.infn.it/sminiato/siena23.html.