A number of documents report on the CLIC accelerator and detector and physics status in advance of the European Strategy update 2018-2020, including the design, technology, and implementation aspects of the CLIC accelerator and the detector, and summaries of the physics potential of CLIC.
The ILC documents presented to the European Strategy update 2018-20 describe the overall ILC project and plans for the European participation in the ILC. Several support documents describing the ILC - the accelerator and detectors - and its physics potential are also available.