The Action Meeting, held on 2-4 November 2015 in Istanbul, included the 7th MC Meeting. The local organiser was Murat Ali Çengelci. The scientific programme was arranged by WG1 (voting) and WG3 (information merging). Invited speakers were Fuad Aleskerov (Moscow), Markus Brill (Oxford), Gabrielle Demange (Paris), Ayça Ebru Giritligil (Istanbul), Reshef Meir (Haifa), Timo Mennle (Zurich), Vincent Merlin (Caen), Matías Núñez (Paris), Maria Polukarov (Southampton), Remzi Sanver (Paris/Istanbul), and Karol Życzkowski (Kraków). For further information, please refer to the Istanbul 2015 website.