2016: 1st UPCON in Wrocław (Poland) 

2018: 2nd UPCON in Valencia (Spain)

2020: COVID-19 (conference postponed)

2021: 3rd UPCON (UPCONline 2021) in Compiegne (France)

2023: UPCON Gordon Research Conference in Waterville Valley (USA)

2024: 4th UPCON  in Montréal (Canada)