The concept of Curriculum Agility has been co-created in a series of sessions at CDIO meetings and conferences since 2018. Deliverables were a jointly generated definition, characteristics, a set of principles, and a self-mapping process on these principles. Using the Curriculum Agility concept offers guidance for CDIO programs and institutions in increasing the adaptability of their curricula based on the latest insights and developments in their discipline, continuously fulfilling the need of an ever more diverse student population and anticipating sudden societal changes. Curriculum Agility takes a holistic approach to considering conditions for proactive and timely curriculum development, including but not limited to enhancement of faculty competence. Although the success of CDIO implementation depends on this wider set of conditions that can drive, enable, or hinder change, this is currently not addressed in the CDIO standards. This paper proposes Curriculum Agility as an optional standard in the CDIO framework. It is a widely applicable, program-level concept including both educational and organisational aspects that addresses an important need in engineering education, and it is co-created within the CDIO community. Curriculum Agility is currently not sufficiently present or addressed in the existing standards. Therefore, this paper argues that Curriculum Agility as an optional standard and rubric will be a new useful tool in the CDIO toolbox.