Following a recommendation of the 2020 update of the European Strategy for Particle Physics Update (ESPPU) to intensify the accelerator R\&D, the European Accelerator R&D Roadmap with five topical research panels was implemented in 2022. Two of the panels, high field magnets, and high gradient RF structures and systems are technology oriented and their R&D efforts will support several collider concepts. Three panels are developing advanced concepts for a future energy frontier collider facility. These concepts involve specific advancements over classical circular or linear collider concepts, but are associated with higher technical complexity. These include high gradient plasma and laser accelerators, bright muon beams and muon colliders and energy recovery linac (ERL).