In this last issue of the year, we take a moment to revisit some of the studies for future collider machines, highlighting some of the recent updates, and report on plasma acceleration research. We review recent events directed at the accelerator community, on topics as diverse as energy management and cryogenics, and the recent technical upgrades towards high-luminosity. We highlight a successful case of technology transfer from CERN to the wider accelerator community. The New Year will bring some news to Accelerating News: a new website and the results of the Accelerating News Readers’ Survey in March 2020.

Read more on the Accelerating News website.