The EMBO Conference, "Comparative genomics of unicellular eukaryotes: Interactions and symbioses" (organizers Julius Lukeš, Toni Gabaldon, Patrick Keeling, Gwenael Piganeau, Ken Wolfe, Alex Worden) originally scheduled for October 2021 will be postponed and rescheduled for 12-17 September 2022, to be held in the same place as several years before in Sant Feliu de Guixols, Spain.